Journal articles: 'Broadcast dissemination'

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Yang, Wei, Wei Liu, Zhiwen Zeng, Anfeng Liu, Guosheng Huang, Neal Xiong, and Zhiping Cai. "Adding Active Slot Joint Larger Broadcast Radius for Fast Code Dissemination in WSNs." Sensors 18, no. 11 (November 20, 2018): 4055. http://dx.doi.org/10.3390/s18114055.

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By using Software Defined Network (SDN) technology, senor nodes can get updated program code which can provide new features, so it has received extensive attention. How to effectively spread code to each node fast is a challenge issue in wireless sensor networks (WSNs). In this paper, an Adding Active Slot joint Larger Broadcast Radius (AAS-LBR) scheme is proposed for fast code dissemination. The AAS-LBR scheme combines the energy of data collection and code dissemination, making full use of the remaining energy in the far-sink area to increase the active slot and the broadcast radius to speed up the code dissemination. The main contributions of the proposed AAS-LBR scheme are the following: (1) Make full use of the remaining energy of the far sink area to expand the broadcast radius, so that the node broadcasts a longer distance. The wide range of broadcasts makes the number of nodes receiving code more, which speeds up the spread of code dissemination. (2) AAS-LBR uses two improved methods to further reduce the number of broadcasts and speed up the code dissemination: (a) When constructing the broadcast backbone whose nodes dominate all nodes in network and are responsible for broadcasting code, the active slot is added to the next hop node in a pipeline style on the diffusion path, which enables the code dissemination process to continue without pause. Thus, the code can quickly spread to the entire broadcast backbone. (b) For the nodes in the non-broadcast backbone whose nodes are dominated by the broadcast backbone and only for receiving code, an active slot is added coincident with its broadcast backbone’ active slot, which can reduce the time required for code dissemination and reduce the number of broadcasts. A lot of performance analysis and simulation results show that compared to previous schemed, the AAS-LBR scheme can balance energy consumption, the transmission delay can be reduced 43.09–78.69%, the number of broadcasts can be reduced 44.51–86.18% and the energy efficiency is improved by about 24.5%.

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Topkis, D. M. "Concurrent Broadcast for Information Dissemination." IEEE Transactions on Software Engineering SE-11, no. 10 (October 1985): 1107–12. http://dx.doi.org/10.1109/tse.1985.231858.

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Zheng, Baihua, and Dik Lun Lee. "Information dissemination via wireless broadcast." Communications of the ACM 48, no. 5 (May 2005): 105–10. http://dx.doi.org/10.1145/1060710.1060717.

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Arief, M. "Process of transformation dissemination radio broadcast content." Journal of Physics: Conference Series 1375 (November 2019): 012031. http://dx.doi.org/10.1088/1742-6596/1375/1/012031.

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Acharya, S., M. Franklin, and S. Zdonik. "Dissemination-based data delivery using broadcast disks." IEEE Personal Communications 2, no. 6 (1995): 50–60. http://dx.doi.org/10.1109/98.475988.

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Wang, Wenjie, Tao Luo, and Ying Hu. "An Adaptive Information Quantity-Based Broadcast Protocol for Safety Services in VANET." Mobile Information Systems 2016 (2016): 1–12. http://dx.doi.org/10.1155/2016/2195496.

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Vehicle-to-vehicle communication plays a significantly important role in implementing safe and efficient road traffic. When disseminating safety messages in the network, the information quantity on safety packets changes over time and space. However, most of existing protocols view each packet the same to disseminate, preventing vehicles from collecting more recent and precise safety information. Hence, an information quantity-based broadcast protocol is proposed in this paper to ensure the efficiency of safety messages dissemination. In particular, we propose the concept of emergency-degree to evaluate packets’ information quantity. Then we present EDCast, an emergency-degree-based broadcast protocol. EDCast differentiates each packet’s priority for accessing the channel based on its emergency-degree so as to provide vehicles with more safety information timely and accurately. In addition, an adaptive scheme is presented to ensure fast dissemination of messages in different network condition. We compare the performance of EDCast with those of three other representative protocols in a typical highway scenario. Simulation results indicate that EDCast achieves higher broadcast efficiency and less redundancy with less delivery delay. What we found demonstrates that it is feasible and necessary for incorporating information quantity of messages in designing an efficient safety message broadcast protocol.

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Valantina, G. Mary, and S. Jayashri. "Performance analysis of Broadcast Data Dissemination over VANETs." i-manager’s Journal on Wireless Communication Networks 2, no. 4 (March 15, 2014): 1–5. http://dx.doi.org/10.26634/jwcn.2.4.2646.

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WANG, Fang, Yong LI, Zhaocheng WANG, and Zhixing YANG. "Online Content Dissemination in Hybrid Broadcast-Unicast Networks." IEICE Transactions on Communications E96.B, no. 6 (2013): 1551–58. http://dx.doi.org/10.1587/transcom.e96.b.1551.

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Sung, Yoonyoung, and Meejeong Lee. "A Road Layout Based Broadcast Mechanism for Urban Vehicular Ad Hoc Networks." Wireless Communications and Mobile Computing 2018 (2018): 1–21. http://dx.doi.org/10.1155/2018/1565363.

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Safety services of Vehicular Ad Hoc Network (VANET) require reliable broadcasts. We propose a reliable broadcast mechanism for urban roads called VANET Broadcasting for Urban areas based on Road Layout (VBURL), which tries to minimize the dependency on information that may become inaccurate to maximize the efficiency of broadcast. Specifically, the proposed mechanism takes into account the road layout information accessible from the digital map and only the real-time information obtained from the broadcast messages or beacons. VBURL basically makes the vehicle that is farthest from the current forwarding vehicle take the role of next forwarding vehicle and, if possible, makes an additional broadcast happen at the intersections where the effect of signal attenuation caused by the road side obstacles is low in order to have prompt and reliable dissemination of safety messages towards all roads connected to the intersections. The simulation results verified that VBURL achieves the same high performance as that of the compared legacy schemes in terms of reliability with much higher efficiency. Even though the message reception delay of VBURL is slightly longer than those of compared schemes, it is far less significant to impair the original purpose of safety message.

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Young, Cheng-ru, and Ge-ming Chiu. "Efficient Dissemination of Transaction-Consistent Data in Broadcast Environments." IEEE Transactions on Knowledge and Data Engineering 19, no. 3 (March 2007): 384–97. http://dx.doi.org/10.1109/tkde.2007.42.

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Lai, Chuan-Chi, Yu-De Lin, and Chuan-Ming Liu. "Frequent-Pattern-Based Broadcast Scheduling for Conflict Avoidance in Multichannel Data Dissemination Systems." Wireless Communications and Mobile Computing 2021 (December 14, 2021): 1–19. http://dx.doi.org/10.1155/2021/1863590.

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With the popularity of mobile devices, using the traditional client-server model to handle a large number of requests is very challenging. Wireless data broadcasting can be used to provide services to many users at the same time, so reducing the average access time has become a popular research topic. For example, some location-based services (LBS) consider using multiple channels to disseminate information to reduce access time. However, data conflicts may occur when multiple channels are used, where multiple data items associated with the request are broadcasted at about the same time. In this article, we consider the channel switching time and identify the data conflict issue in an on-demand multichannel dissemination system. We model the considered problem as a data broadcast with conflict avoidance (DBCA) problem and prove it is NP-complete. We hence propose the frequent-pattern-based broadcast scheduling (FPBS), which provides a new variant of the frequent pattern tree, FP ∗ -tree, to schedule the requested data. Using FPBS, the system can avoid data conflicts when assigning data items to time slots in the channels. In the simulation, we discussed two modes of FPBS: online and offline. The results show that, compared with the existing heuristic methods, FPBS can shorten the average access time by 30%.

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Galaviz-Mosqueda, Alejandro, Salvador Villarreal-Reyes, Hiram Galeana-Zapién, Javier Rubio-Loyola, and David H. Covarrubias-Rosales. "Reliable Multihop Broadcast Protocol with a Low-Overhead Link Quality Assessment for ITS Based on VANETs in Highway Scenarios." Scientific World Journal 2014 (2014): 1–12. http://dx.doi.org/10.1155/2014/359636.

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Vehicular ad hoc networks (VANETs) have been identified as a key technology to enable intelligent transport systems (ITS), which are aimed to radically improve the safety, comfort, and greenness of the vehicles in the road. However, in order to fully exploit VANETs potential, several issues must be addressed. Because of the high dynamic of VANETs and the impairments in the wireless channel, one key issue arising when working with VANETs is the multihop dissemination of broadcast packets for safety and infotainment applications. In this paper a reliable low-overhead multihop broadcast (RLMB) protocol is proposed to address the well-known broadcast storm problem. The proposed RLMB takes advantage of the hello messages exchanged between the vehicles and it processes such information to intelligently select a relay set and reduce the redundant broadcast. Additionally, to reduce the hello messages rate dependency, RLMB uses a point-to-zone link evaluation approach. RLMB performance is compared with one of the leading multihop broadcast protocols existing to date. Performance metrics show that our RLMB solution outperforms the leading protocol in terms of important metrics such as packet dissemination ratio, overhead, and delay.

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Pan, Bin, Hao Wu, and Jin Wang. "FL-ASB: A Fuzzy Logic Based Adaptive-period Single-hop Broadcast Protocol." International Journal of Distributed Sensor Networks 14, no. 5 (May 2018): 155014771877848. http://dx.doi.org/10.1177/1550147718778482.

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In vehicular ad hoc networks, vehicle-to-vehicle–based broadcast can fast disseminate safety messages between vehicles within the whole network and hence expand drivers perception vision, which will reduce the accident probability and ensure the transportation reliability. As for fixed-period single-hop broadcast protocol, disseminating safety messages frequently can cause excessive network load. However, increasing period purely does not guarantee the real-time performance. In addition, exiting adaptive-period single-hop broadcast protocols also have limitations without considering synthetically various impact factors. Thus, how to design a single-hop broadcast protocol that can dynamically adjust the broadcast period according to the actual road condition is a pressing issue. A Fuzzy Logic Based Adaptive-period Single-hop Broadcast Protocol in vehicular ad hoc networks is designed in this article, which provides a new solution for the dissemination of period safety messages. In this article, the impact of various factors (such as the number of one-hop neighbor nodes, vehicle speed, received signal strength index, and visibility) on the single-hop broadcast period has been analyzed. In view of each impact factor, we design corresponding membership function and fuzzy rules according to the specific scenarios and parameters. It realizes the adaptive changes of period safety messages broadcast period through the simulation of the proposed fuzzy logic inference system. Finally, we verify the performance of the Fuzzy Logic Based Adaptive-period Single-hop Broadcast Protocol in a bidirectional four-lane highway scenario. Simulation results show that the proposed Fuzzy Logic Based Adaptive-period Single-hop Broadcast Protocol has obvious advantages in terms of network load ratio, average one-hop delay, and delivery ratio.

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Azlin, Azlin, La Atina La Atina, and Ria Indrasari. "APLIKASI MOBILE BROADCAST INFORMASI PERKULIAHAN BERBASIS ANDROID." JURNAL INFORMATIKA 11, no. 2 (December 29, 2022): 150. http://dx.doi.org/10.55340/jiu.v11i2.468.

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<p><em>Many lecture activities on campus, such as class schedules, still use the manual method to trigger them for students. This causes that the information provided is often not delivered as a result of time constraints, so manual notification is not very helpful. The media used in the informatics engineering study program to convey current information are bulletin boards and the campus' official portal website. Therefore we need a system that can convey lecture information directly to students. This study aims to build a Mobile Broadcast Application for Disseminating Lecture Information for students. The research methodology used in this research is using the waterfall model. The waterfall model provides a sequential software life-flow approach starting from analysis, design, coding, and testing. Analysis is a stage that is used to analyze the specifications or requirements for the application to be built. This research produced a Mobile Broadcast Application for Information Dissemination of Android-Based Lectures for the Informatics Engineering Study Program which makes it easier for students to obtain lecture information.</em></p>

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Ali, Muhammad, Asad W. Malik, Anis U. Rahman, Sohail Iqbal, and Mian M. Hamayun. "Position-based emergency message dissemination for Internet of vehicles." International Journal of Distributed Sensor Networks 15, no. 7 (July 2019): 155014771986158. http://dx.doi.org/10.1177/1550147719861585.

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With the advancement in communication technologies, Internet of vehicles presents a new set of opportunities to efficiently manage transportation problems using vehicle-to-vehicle communication. However, high mobility in vehicular networks causes frequent changes in network topology, which leads to network instability. This frequently results in emergency messages failing to reach the target vehicles. To overcome this problem, we propose a data dissemination scheme for such messages in vehicular networks, based on clustering and position-based broadcast techniques. The vehicles are dynamically clustered to handle the broadcast storm problem, and a position-based technique is proposed to reduce communication delays, resulting in timely dissemination of emergency messages. The simulation results show that the transmission delay, information coverage, and packet delivery ratios improved up to 14%, 9.7%, and 5.5%, respectively. These results indicate that the proposed scheme is promising as it outperforms existing techniques.

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Horng, Gwo-Jiun, Chi-Hsuan Wang, and Chih-Lun Chou. "Adaptive Broadcasting Mechanism for Bandwidth Allocation in Mobile Services." Scientific World Journal 2014 (2014): 1–14. http://dx.doi.org/10.1155/2014/735457.

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This paper proposes a tree-based adaptive broadcasting (TAB) algorithm for data dissemination to improve data access efficiency. The proposed TAB algorithm first constructs a broadcast tree to determine the broadcast frequency of each data and splits the broadcast tree into some broadcast wood to generate the broadcast program. In addition, this paper develops an analytical model to derive the mean access latency of the generated broadcast program. In light of the derived results, both the index channel’s bandwidth and the data channel’s bandwidth can be optimally allocated to maximize bandwidth utilization. This paper presents experiments to help evaluate the effectiveness of the proposed strategy. From the experimental results, it can be seen that the proposed mechanism is feasible in practice.

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Schmelz, Peter J. "Alfred Schnittke's Nagasaki: Soviet Nuclear Culture, Radio Moscow, and the Global Cold War." Journal of the American Musicological Society 62, no. 2 (2009): 413–74. http://dx.doi.org/10.1525/jams.2009.62.2.413.

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This article examines Alfred Schnittke's final conservatory composition, the oratorio Nagasaki (1957–58, revised 1958–59). Both controversial and yet doctrinaire, Nagasaki proves an unexpectedly rich object of study owing to the unusual circumstances surrounding its dissemination. Its radio broadcasts during the 1960s both within the Soviet Union and abroad provide unique insights into Soviet perceptions of the bomb. The domestic broadcast suggests hitherto unexplored aspects of Cold War culture within the USSR, especially the changing attitudes, both official and unofficial, toward atomic weapons (what can be referred to as nuclear culture). The broadcast to Japan on Radio Moscow (Moskovskoye radio, a Soviet equivalent of the U.S. Voice of America, or VOA) indicates the view of nuclear weapons it promulgated abroad. Thanks to records of its 1960 Radio Moscow broadcast in Japan, Nagasaki provides an extraordinary opportunity to chart the use of music in Soviet international propaganda efforts via the airwaves. This article relies upon an unpublished copyist's score and the original, unreleased 1959 recording of Nagasaki, in addition to previously unknown archival documents. It also synthesizes, corrects, and supplements the existing accounts of the work, all of them in various ways incomplete or inaccurate.

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Stojanovic, Ivana, Zeyu Wu, Masoud Sharif, and David Starobinski. "Data dissemination in wireless broadcast channels: Network coding versus cooperation." IEEE Transactions on Wireless Communications 8, no. 4 (April 2009): 1726–32. http://dx.doi.org/10.1109/twc.2009.070831.

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Eyobu, Odongo Steven, Jhihoon Joo, and Dong Seog Han. "A broadcast scheme for vehicle-to-pedestrian safety message dissemination." International Journal of Distributed Sensor Networks 13, no. 11 (November 2017): 155014771774183. http://dx.doi.org/10.1177/1550147717741834.

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Cheng, Yuanyuan. "The All-Media Communication Path of Major News Reports." Scientific and Social Research 4, no. 8 (August 25, 2022): 56–62. http://dx.doi.org/10.26689/ssr.v4i8.4312.

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Due to the emergence of new media, traditional media is in urgent need of reformation and transition. Traditional media faces many challenges in terms of reporting major news. This is because information can be disseminated and be distorted due to the presence of new media. In order to explore major news broadcast transmission path in the media environment, this article adopts the way of theoretical analysis. The present situation of development of the media industry were first analyzed. Then, the reasons of all media dissemination of major news reports were analyzed. The path of major news dissemination using all media was then suggested in order to improve the broadcast of major news reporting and complete the publicity coverage.

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Azzaoui, Nadjet, Ahmed Korichi, Bouziane Brik, and Med el Amine Fekair. "Towards Optimal Dissemination of Emergency Messages in Internet of Vehicles: A Dynamic Clustering-Based Approach." Electronics 10, no. 8 (April 19, 2021): 979. http://dx.doi.org/10.3390/electronics10080979.

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In this paper, we target dissemination issues of emergency messages in a highly dynamic Internet of Vehicles (IoV) network. IoV is emerging as a new class of vehicular networks to optimize road safety as well as users’ comfort. In such a context, forwarding emergency messages through vehicle-to-vehicle communications (V2V) plays a vital role in enabling road safety-related applications. For instance, when an accident occurs, forwarding such information in real time will help to avoid other accidents in addition to avoiding congestion of network traffic. Thus, dissemination of emergency information is a major concern. However, on the one hand, vehicle density has increased in the last decade which may lead to several issues including message collisions, broadcast storm, and the problem of hidden nodes. On the other hand, high mobility of vehicles and hence dynamic changes of network topology result in failure of dissemination of emergency packets. To overcome these problems, we propose a new dissemination scheme of emergency packets by vehicles equipped with both DSRC and cellular LTE wireless communication capabilities. Our scheme is based on a dynamic clustering strategy, which includes a new cluster head selection algorithm to deal with the broadcast storm problem. Furthermore, our selection algorithm enables not only the election of the most stable vehicles as cluster heads, and hence their exploitation in forwarding the emergency information, but also the avoidance of packet collisions. We simulated our scheme in an urban environment and compared it with other data dissemination schemes. Obtained results show the efficiency of our scheme in minimizing collision and broadcast storm problems, while improving latency, packet delivery ratio and data throughput, as compared to other schemes.

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Urmonov, Odilbek, and HyungWon Kim. "A Multi-Hop Data Dissemination Algorithm for Vehicular Communication." Computers 9, no. 2 (March 31, 2020): 25. http://dx.doi.org/10.3390/computers9020025.

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In vehicular networks, efficient multi-hop message dissemination can be used for various purposes, such a informing the driver about the recent emergency event or propagating the local dynamic map of a predefined region. Dissemination of warning information up to a longer distance can reduce the accidents on the road. It provides a driver additional time to react to the situations adequately and assists in finding a safe route towards the destination. The adopted V2X standards, ETSI TS’s C-ITS and IEEE 1609/IEEE 802.11p, specify only primitive multi-hop message dissemination schemes. IEEE 1609.4 standard disseminates the broadcast messages using the method of flooding, which causes high redundancy, severe congestion, and long delay during multi-hop propagation. To address these problems, we propose an effective broadcast message dissemination method. It introduces a notion of source Lateral Crossing Line (LCL) algorithm, which elects a set of relay vehicles for each hop based on the vehicle locations in a way that reduces the redundant retransmission and congestion, consequently minimizing the delays. Our simulation results demonstrated that the proposed method can achieve about 15% reduction in delays and 2 times the enhancement in propagation distance compared with the previous methods.

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Ullah, Sami, Ghulam Abbas, Muhammad Waqas, Ziaul Haq Abbas, Shanshan Tu, and Ibrahim A. Hameed. "EEMDS: An Effective Emergency Message Dissemination Scheme for Urban VANETs." Sensors 21, no. 5 (February 25, 2021): 1588. http://dx.doi.org/10.3390/s21051588.

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In Vehicular Adhoc Networks (VANETs), disseminating Emergency Messages (EMs) to a maximum number of vehicles with low latency and low packet loss is critical for road safety. However, avoiding the broadcast storm and dealing with large-scale dissemination of EMs in urban VANETs, particularly at intersections, are the challenging tasks. The problems become even more challenging in a dense network. We propose an Effective Emergency Message Dissemination Scheme (EEMDS) for urban VANETs. The scheme is based on our mobility metrics to avoid communication overhead and to maintain a stable cluster structure. Every vehicle takes into account its direction angle and path loss factor for selecting a suitable cluster head. Moreover, we introduce estimated link stability to choose a suitable relay vehicle that reduces the number of rebroadcasts and communication congestion in the network. Simulation results show that EEMDS provides an acceptable end-to-end delay, information coverage, and packet delivery ratio compared to the eminent EM dissemination schemes.

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Sanguesa, Julio A., Manuel Fogue, Piedad Garrido, Francisco J. Martinez, Juan-Carlos Cano, and Carlos T. Calafate. "A Survey and Comparative Study of Broadcast Warning Message Dissemination Schemes for VANETs." Mobile Information Systems 2016 (2016): 1–18. http://dx.doi.org/10.1155/2016/8714142.

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Vehicle-to-vehicle (V2V) communications also known as vehicular ad hoc networks (VANETs) allow vehicles to cooperate to increase driving efficiency and safety on the roads. In particular, they are forecasted as one of the key technologies to increase traffic safety by providing useful traffic services. In this scope, vehicle-to-vehicle dissemination of warning messages to alert nearby vehicles is one of the most significant and representative solutions. The main goal of the different dissemination strategies available is to reduce the message delivery latency of such information while ensuring the correct reception of warning messages in the vehicle’s neighborhood as soon as a dangerous situation occurs. Despite the fact that several dissemination schemes have been proposed so far, their evaluation has been done under different conditions, using different simulators, making it difficult to determine the optimal dissemination scheme for each particular scenario. In this paper, besides reviewing the most relevant broadcast dissemination schemes available in the recent literature, we also provide a fair comparative analysis by evaluating them under the same environmental conditions, focusing on the same metrics, and using the same simulation platform. Overall, we provide researchers with a clear guideline of the benefits and drawbacks associated with each scheme.

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Huang, Jiawei, Yi Huang, and Jianxin Wang. "Vehicle Density Based Forwarding Protocol for Safety Message Broadcast in VANET." Scientific World Journal 2014 (2014): 1–9. http://dx.doi.org/10.1155/2014/584164.

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In vehicular ad hoc networks (VANETs), the medium access control (MAC) protocol is of great importance to provide time-critical safety applications. Contemporary multihop broadcast protocols in VANETs usually choose the farthest node in broadcast range as the forwarder to reduce the number of forwarding hops. However, in this paper, we demonstrate that the farthest forwarder may experience large contention delay in case of high vehicle density. We propose an IEEE 802.11-based multihop broadcast protocol VDF to address the issue of emergency message dissemination. To achieve the tradeoff between contention delay and forwarding hops, VDF adaptably chooses the forwarder according to the vehicle density. Simulation results show that, due to its ability to decrease the transmission collisions, the proposed protocol can provide significantly lower broadcast delay.

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Schulz, Dorothea. "'CHARISMA AND BROTHERHOOD' REVISITED: MASS-MEDIATED FORMS OF SPIRITUALITY IN URBAN MALI." Journal of Religion in Africa 33, no. 2 (2003): 146–71. http://dx.doi.org/10.1163/15700660360703123.

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AbstractThe case study of the Muslim movement Ansar Dine and its charismatic leader Sharif Haidara illustrates that the debate on, and public significance of, Islam has been shifting in recent years and how broadcast media played into this process. Haidara's extensive use of (mostly aural) media allows him to combine traditional elements of religious authority with new credentials. His public prominence and success suggests that broadcasting contributes to the rationalization of religious genres in a double sense. The dissemination of religious knowledge on broadcast media works through the standardization of genres and styles of religious argument. It contributes to a process of objectification in the course of which 'religion' becomes the object of individual scrutiny and identity construction. But this does not indicate a shift towards a more rational character of religious debate. Haidara's persuasiveness resides to a major extent in his capacity to captivate listeners' aesthetic sensibilities. Popular reception of Haidara's teachings evidences the significance of religious debate in secular state politics. It illustrates some ways in which consumption of religious broadcasts contributes to a partial re-sacralization of everyday experience.

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Sung, Yoon-Young, and Mee-Jeong Lee. "A Rebroadcasting Approach for Reliable Broadcast Message Dissemination in Urban Environments." Journal of Korea Information and Communications Society 37B, no. 12 (December 28, 2012): 1195–207. http://dx.doi.org/10.7840/kics.2012.37b.12.1195.

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., Nidhin A. S. "AN ADAPTIVE BROADCAST MECHANISM TO IMPROVE ALERT MESSAGE DISSEMINATION IN VANETS." International Journal of Research in Engineering and Technology 03, no. 05 (May 25, 2014): 20–24. http://dx.doi.org/10.15623/ijret.2014.0305005.

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Sharon, O. "Dissemination of routing information in broadcast networks: OSPF versus IS-IS." IEEE Network 15, no. 1 (2001): 56–65. http://dx.doi.org/10.1109/65.898822.

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Park, Kwangjin, and Hyunseung Choo. "Location-Based Data Dissemination for Spatial Queries in Wireless Broadcast Environments." Journal of Computer Science and Technology 25, no. 2 (March 2010): 330–46. http://dx.doi.org/10.1007/s11390-010-9327-z.

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Javed, Muhammad A., and Jamil Y. Khan. "An Efficient Data Dissemination Scheme for Warning Messages in Vehicular Ad Hoc Networks." International Journal of Wireless Networks and Broadband Technologies 1, no. 4 (October 2011): 55–72. http://dx.doi.org/10.4018/ijwnbt.2011100104.

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Vehicular ad hoc networks (VANETs) are expected to be used for the dissemination of emergency warning messages on the roads. The emergency warning messages such as post crash warning notification would require an efficient multi hop broadcast scheme to notify all the vehicles within a particular area about the emergency. Such emergency warning applications have low delay and transmission overhead requirements to effectively transmit the emergency notification. In this paper, an adaptive distance based backoff scheme is presented for efficient dissemination of warning messages on the road. The proposed scheme adaptively selects the furthest vehicle as the next forwarder of the emergency message based on channel conditions. The detailed performance figures of the protocol are presented in the paper using simulations in the OPNET network simulator. The proposed protocol introduces lower packet delay and broadcast overhead as compared to standard packet broadcasting protocols for vehicular networks.

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Mahmood, Tahera. "Data Dissemination Scheme for VANET using Genetic algorithm and Particle Swarm Optimization." International Journal of Recent Technology and Engineering 10, no. 1 (May 30, 2021): 322–28. http://dx.doi.org/10.35940/ijrte.a5970.0510121.

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A vehicular ad hoc network (VANET) consist of moving vehicles connected via wireless technology e.g., Wireless Access in Vehicular Environment (WAVE) for the aim of exchanging information. Therefore data dissemination in VANET has become issue of debate for researcher. In VANET broadcasting play an important role. The aim of VANET is to ensure passenger safety through emergency message. With multiple objectives broadcast storm is assumed to be an NP-Hard problem. In this paper we propose DDV algorithm to solve broadcast storm problem. Fitness function has used to optimize the objective of proposed algorithm. The proposed algorithm producing better optimization results. We are considering a highway scenario in city with dynamic rotation, to evaluate the performance of the DDV algorithm we compare the result with Smart flooding techniques, MOGA (Multi Objective Genetic algorithm) [1] and EEADP. Our result show the better performance in terms of reduce the number of retransmission, increase the packet delivery ratio and provide better throughput.

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Wang, Shujuan, Chunting Yan, and Zhengtao Yu. "Efficient Coding-Based Scheduling for Multi-Item Requests in Real-Time On-Demand Data Dissemination." Mobile Information Systems 2016 (2016): 1–12. http://dx.doi.org/10.1155/2016/4320781.

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On-demand broadcast is an effective data dissemination technique to enhance the system ability to handle dynamic client access patterns. With the development of real-time wireless applications, it is practical for clients to request multiple related data items with time constraint in one request. For real-time data broadcast, items are only useful if they can be received by clients before expiration; otherwise, the related requests become invalid. Hence, minimizing the number of requests that miss their deadlines becomes an important task in on-demand broadcast, especially for multi-item scenario, where more requests are inclined to miss their deadlines due to the heavier workload and greater complexity, compared with single-item scenario. In this paper, we propose a network coding-based scheduling algorithm for real-time multi-item data dissemination. The proposed algorithm exploits the coding opportunities between cached and requested data items and integrates network coding with data scheduling to minimize the deadline miss ratio. Extensive simulation results demonstrate that the proposed algorithm achieves the lowest deadline miss ratio under various circumstances. In addition, the high efficiency of the proposed algorithm in utilizing the transmission bandwidth is proved for that fewer instances of ineffective service are provided for satisfying clients’ requests within time constraints.

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Sebastian, Alvin, Maolin Tang, Yanming Feng, and Mark Looi. "Context-Aware Multicast Protocol for Emergency Message Dissemination in Vehicular Networks." International Journal of Vehicular Technology 2012 (September 18, 2012): 1–14. http://dx.doi.org/10.1155/2012/905396.

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Road traffic accidents can be reduced by providing early warning to drivers through wireless ad hoc networks. When a vehicle detects an event that may lead to an imminent accident, the vehicle disseminates emergency messages to alert other vehicles that may be endangered by the accident. In many existing broadcast-based dissemination schemes, emergency messages may be sent to a large number of vehicles in the area and can be propagated to only one direction. This paper presents a more efficient context-aware multicast protocol that disseminates messages only to endangered vehicles that may be affected by the emergency event. The endangered vehicles can be identified by calculating the interaction among vehicles based on their motion properties. To ensure fast delivery, the dissemination follows a routing path obtained by computing a minimum delay tree. The multicast protocol uses a generalized approach that can support any arbitrary road topology. The performance of the multicast protocol is compared with existing broadcast protocols by simulating chain collision accidents on a typical highway. Simulation results show that the multicast protocol outperforms the other protocols in terms of reliability, efficiency, and latency.

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Raj, Sony Jalarajan, Mohammad Sahid Ullah, and Rawshon Akhter. "From dissemination to response: in search of new strategies for broadcast media in terms of cyclone warnings for Bangladesh." Journal of Science Communication 09, no. 04 (December 21, 2010): A03. http://dx.doi.org/10.22323/2.09040203.

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Media and communications technologies play a significant role in disaster management procedures in regards to the mobilization of resources in emergency situations. While the dissemination of warning messages relayed via broadcast technologies have had some positive outcomes in terms of reducing casualties in emergency situations in Bangladesh, there remain some specific problems in regards to the manner in which these messages are distributed within this developing nation. These problems are addressed within this paper. Examining the existing cyclonic warning dissemination system and the manner in which warning information is distributed and received, this study addresses citizen responses to mediated warning messages in the vulnerable coastal regions of Bangladesh. The results indicate that attitudes towards mediated warnings held by Bangladeshi citizens in these environs differ depending upon their access to media, type of dwelling and differing levels of literacy. This study also provides recommendations for media professionals and policymakers in regards to disseminating more effective warnings to the inhabitants of Bangladesh's cyclone-prone coastal belt.

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Kim, Youngboo, and Eun-Chan Park. "An Efficient Relayed Broadcasting based on the Duplication Estimation Model for IoT Applications." Sensors 19, no. 9 (April 30, 2019): 2038. http://dx.doi.org/10.3390/s19092038.

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In this paper, we consider relay-based broadcasting in wireless ad hoc networks, which can enable various emerging services in the Internet of Things (IoT). In this kind of traffic dissemination scheme, also known as flooding, all the nodes not only receive frames but also rebroadcast them. However, without an appropriate relay suppression, a broadcast storm problem arises, i.e., the transmission may fail due to severe collisions and/or interference, many duplicate frames are unnecessarily transmitted, and the traffic dissemination time increases. To mitigate the broadcast storm problem, we propose a reasonable criterion to restrict the rebroadcasting named the duplication ratio. Based on this, we propose an efficient mechanism consisting of duplication suppression and re-queuing schemes. The former discards duplicate frames proactively in a probabilistic manner to decrease the redundancy whereas the latter provides a secondary transmission opportunity reactively to compensate for the delivery failure. Moreover, to apply the duplication ratio practically, we propose a simple method to approximate it based on the number of adjacent nodes. The simulation study confirms that the proposed mechanism tightly ensured the reliability and decreased the traffic dissemination time by up to 6-fold compared to conventional mechanisms.

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Chen, Chun Li, Jing Song Lv, and Yan Jiang. "Algorithms of Admission Control and Batch Scheduling of On-Demand Broadcast with Deadlines." Applied Mechanics and Materials 511-512 (February 2014): 892–97. http://dx.doi.org/10.4028/www.scientific.net/amm.511-512.892.

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Owing to its potential to satisfy all outstanding requests for the same data item with a single response, on-demand data broadcast becomes a widely accepted approach to dynamic and scalable wireless information dissemination. In the existing works, clients must wait until the deadline of their requests in the case the requests cannot be satisfied. In this paper, broadcast admission control is introduced to data broadcast systems such that the clients can be informed in advance on the result of admission control for the requests. Furthermore, a matching based allocation scheme is proposed for batch scheduling to maximize data sharing among requests. Simulation results show that our proposed algorithms have better comprehensive performance than traditional algorithms in terms of scheduling, admission control and QoS.

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Powell, Fernando Méndez. "Bans and Restrictions on Religious Broadcasting: A Review of the Arguments and Counter-Arguments." Religion & Human Rights 13, no. 2 (August 8, 2018): 213–43. http://dx.doi.org/10.1163/18710328-13011162.

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Abstract The ownership of broadcast stations by religious groups, the establishment of broadcast stations exclusively devoted to religious content and the inclusion of content of a religious nature within the programming of regular commercial, public or community stations are all practices that are common throughout the world. However, several countries have implemented bans or restrictions on the dissemination of religious content through broadcasting or the ownership of broadcast stations by religious groups. The present article aims to assess whether such bans and restrictions are compatible with the rights to freedom of religion and freedom of expression as recognized under international human rights law. For these purposes, the most common arguments in favour and against restrictions on religious broadcasting are explained and weighed against each other.

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Limouchi, Elnaz, and Imad Mahgoub. "Smart Fuzzy Logic-Based Density and Distribution Adaptive Scheme for Efficient Data Dissemination in Vehicular Ad Hoc Networks." Electronics 9, no. 8 (August 12, 2020): 1297. http://dx.doi.org/10.3390/electronics9081297.

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In vehicular Ad Hoc Networks (VANETs), smart data dissemination is crucial for efficient exchange of traffic and road information. Given the dynamic nature of VANET, the challenge is to design an adaptive multi-hop broadcast scheme that achieves high reachability while efficiently utilizing the bandwidth by reducing the number of redundant transmissions. In this paper, we propose a novel intelligent fuzzy logic based density and distribution adaptive broadcast protocol for VANETs. The proposed protocol estimates the spatial distribution of vehicles in the network employing the Nearest Neighbor Distance method, and uses it to adapt the transmission range to enhance reachability. To reduce packet collisions, the protocol intelligently adapts the contention window size to the network density and spatial distribution. Bloom filter technique is used to reduce the overhead resulting from the inclusion of the neighbor IDs in the header of the broadcast message, which is needed in identifying the set of potential rebroadcasting vehicles. Our simulation results confirmed the effectiveness of the proposed scheme in enhancing reachability while efficiently utilizing bandwidth.

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CAO, Dun, Zhengbao LEI, Baofeng JI, and Chunguo LI. "Exponent-Based Partitioning Broadcast Protocol for Emergency Message Dissemination in Vehicular Networks." IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences E99.A, no. 11 (2016): 2075–83. http://dx.doi.org/10.1587/transfun.e99.a.2075.

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Ullah, Sami, Ghulam Abbas, Ziaul Haq Abbas, Muhammad Waqas, and Manzoor Ahmed. "RBO-EM: Reduced Broadcast Overhead Scheme for Emergency Message Dissemination in VANETs." IEEE Access 8 (2020): 175205–19. http://dx.doi.org/10.1109/access.2020.3025212.

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Sahoo, Jagruti, Eric Hsiao-Kuang Wu, Pratap Kumar Sahu, and Mario Gerla. "Binary-Partition-Assisted MAC-Layer Broadcast for Emergency Message Dissemination in VANETs." IEEE Transactions on Intelligent Transportation Systems 12, no. 3 (September 2011): 757–70. http://dx.doi.org/10.1109/tits.2011.2159003.

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Shu, Ting, Wei Liu, Tian Wang, Qingyong Deng, Ming Zhao, Neal N. Xiong, Xiong Li, and Anfeng Liu. "Broadcast Based Code Dissemination Scheme for Duty Cycle Based Wireless Sensor Networks." IEEE Access 7 (2019): 105258–86. http://dx.doi.org/10.1109/access.2019.2932006.

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Wu, Libing, Lei Nie, Jing Fan, Yanxiang He, Qin Liu, and Dan Wu. "An Efficient Multi-hop Broadcast Protocol for Emergency Messages Dissemination in VANETs." Chinese Journal of Electronics 26, no. 3 (May 1, 2017): 614–23. http://dx.doi.org/10.1049/cje.2017.03.001.

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Terzian, Tamar V. "Direct-to-Consumer Prescription Drug Advertising." American Journal of Law & Medicine 25, no. 1 (1999): 149–67. http://dx.doi.org/10.1017/s0098858800009515.

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The Food and Drug Administration (FDA) regulates the promotion of pharmaceutical products. The FDA's regulations issued under the Food, Drug and Cosmetic Act (FDCA) require that prescription drug broadcast advertisements include the following: (1) a major statement of the product's risks in at least the audio part of the advertisement; and (2) that an adequate provision for the dissemination of the approved package labeling be made “in connection with the broadcast presentation,” if the brief summary is not also part of the advertisement. Under the FDCA, the brief summary provides information concerning the major risks of the drug.

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BHABAK, PUSPAL, and HOVHANNES A. HARUTYUNYAN. "Approximation Algorithm for the Broadcast Time in k-Path Graph." Journal of Interconnection Networks 19, no. 04 (December 2019): 1950006. http://dx.doi.org/10.1142/s0219265919500063.

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Broadcasting is an information dissemination problem in a connected network in which one node, called the originator, must distribute a message to all other nodes by placing a series of calls along the communication lines of the network. In every unit of time, the informed nodes aid the originator in distributing the message. Finding the broadcast time of any vertex in an arbitrary graph is NP-complete. The polynomial time solvability is shown only for certain graphs like trees, unicyclic graphs, tree of cycles, necklace graphs, fully connected trees and tree of cliques. In this paper we study the broadcast problem in k-path graphs. For any originator of the k-path graph we present a (4 – ϵ)-approximation algorithm in the worst case. The algorithm gives a better approximation ratio for some large classes of k-path graphs. Moreover, our algorithm generates the optimal broadcast time for some cases.

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Waluyo, Agustinus Borgy, Bala Srinivasan, and David Taniar. "Research in Mobile Database Query Optimization and Processing." Mobile Information Systems 1, no. 4 (2005): 225–52. http://dx.doi.org/10.1155/2005/161239.

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The emergence of mobile computing provides the ability to access information at any time and place. However, as mobile computing environments have inherent factors like power, storage, asymmetric communication cost, and bandwidth limitations, efficient query processing and minimum query response time are definitely of great interest. This survey groups a variety of query optimization and processing mechanisms in mobile databases into two main categories, namely: (i) query processing strategy, and (ii) caching management strategy. Query processing includes both pull and push operations (broadcast mechanisms). We further classify push operation into on-demand broadcast and periodic broadcast. Push operation (on-demand broadcast) relates to designing techniques that enable the server to accommodate multiple requests so that the request can be processed efficiently. Push operation (periodic broadcast) corresponds to data dissemination strategies. In this scheme, several techniques to improve the query performance by broadcasting data to a population of mobile users are described. A caching management strategy defines a number of methods for maintaining cached data items in clients' local storage. This strategy considers critical caching issues such as caching granularity, caching coherence strategy and caching replacement policy. Finally, this survey concludes with several open issues relating to mobile query optimization and processing strategy.

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Bhatia, Jitendra, Jashvant Dave, Madhuri Bhavsar, Sudeep Tanwar, and Neeraj Kumar. "SDN-Enabled Adaptive Broadcast Timer for Data Dissemination in Vehicular Ad Hoc Networks." IEEE Transactions on Vehicular Technology 70, no. 8 (August 2021): 8134–47. http://dx.doi.org/10.1109/tvt.2021.3092065.

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Jesudoss. "A BROADCAST BASED ROUTING PROTOCOL FOR INTER-CLUSTER DATA DISSEMINATION IN VEHICULAR COMMUNICATION." Journal of Computer Science 10, no. 5 (May 1, 2014): 729–36. http://dx.doi.org/10.3844/jcssp.2014.729.736.

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Liu, Wei, Kiyohide Nakauchi, and Yozo Shoji. "A Neighbor-Based Probabilistic Broadcast Protocol for Data Dissemination in Mobile IoT Networks." IEEE Access 6 (2018): 12260–68. http://dx.doi.org/10.1109/access.2018.2808356.

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Journal articles on the topic 'Broadcast dissemination'

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