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Journal articles on the topic 'Time slots'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Wang, Shuce, Minghua Hu, Zhening Chang, and Xuhao Zhu. "A Methodology for Allocating Incremental Resources in Single-Airport Time Slots." Aerospace 10, no. 9 (2023): 772. http://dx.doi.org/10.3390/aerospace10090772.

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Air carriers shall not readily relinquish their held flight slots. In cases where the historical flight slot pool cannot be easily altered, a pressing need arises for an allocation method that can efficiently utilize the incremental resources of these time slots. This paper presents an integer planning model to address the efficient allocation of incremental airport time slot resources. The model considers the capacity of key resource nodes and flight waveforms as constraints to maximize the total incremental slots. Moreover, it considers the adaptation of strategic and tactical optimization.

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M, Pavithran, Jothish B, Rajesh R, and Varunkumar B. "Parking Slot Booking System." International Journal for Research in Applied Science and Engineering Technology 11, no. 11 (2023): 2688–704. http://dx.doi.org/10.22214/ijraset.2023.56851.

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Abstract: The Parking Slot Booking System is a comprehensive and user-friendly digital platform designed to simplify and enhance the process of reserving and managing parking slots. In today's fast-paced world, efficient parking solutionsare crucial, and this system aims to bridge the gap between drivers and parkingfacilities by providing a convenient and accessible solution. This project assists parking facilities, such as parking garages or lots, in allowing clients or users to reserve parking slots online. The system enables users to easily browse through available parking slots, view their

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Son, Hyukmin, and Beom Kwon. "RIS-Assisted Cooperative Time-Division Multiple Access." Sensors 24, no. 1 (2023): 178. http://dx.doi.org/10.3390/s24010178.

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Reconfigurable intelligent surface-aided communication systems have been intensively investigated to improve capacity, coverage, and energy efficiency via optimal controlling of phase shifts for passive reflecting elements. However, there are few studies on cooperative transmission incorporating RIS in TDMA systems, because RIS reflects all the incident signals, and it inadvertently leads to a boost in interference signals. In this paper, we propose RIS-assisted cooperative time-division multiple access, in which the required SINR of all users is guaranteed as much as possible by opportunistic

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Zeng, Bin, Jing Zhang, and Hai Qing Liu. "Optimal Channel Assignment Algorithm for Wireless Networks." Advanced Materials Research 211-212 (February 2011): 993–97. http://dx.doi.org/10.4028/www.scientific.net/amr.211-212.993.

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In wireless cellular network, users will share the time-slots channel and bandwidth with voice users. With the characteristic of dynamic slot allocation, some time slots can be allocated to one single user. How to choose the slot allocation methodology is a significant problem when considering the system revenue and users’ satisfaction. A new model based on improvement of Markov Decision Process) is developed that can combines the original maximum system revenue model and the call blocking constraints, and will find out the optimal policy of time slots allocation. The experiment result shows t

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Zhu, Mingmin, Xiaoqing Qiang, Wensheng Yu, and Jinfang Teng. "Analysis on slot-type casing treatment injection flow in an axial transonic compressor." Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy 230, no. 8 (2016): 792–804. http://dx.doi.org/10.1177/0957650916671026.

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The purpose of this work is to understand the properties of the injection flow through slots opening surfaces with steady and unsteady simulations. The feasibility of evaluating slot effectiveness by steady results is demonstrated. Transient features of injection flow are detailed investigated. Numerical investigations are carried out in a 1.5 axial transonic compressor stage at a specified rotating speed with seven kinds of slot-type casing treatments. Comparisons between steady/unsteady results show that differences of overall performance and injection mass flow rate are dependent on simulat

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CHATTERJEE, MAINAK, and SAJAL K. DAS. "PERFORMANCE EVALUATION OF A REQUEST-TDMA/CDMA PROTOCOL FOR WIRELESS NETWORKS." Journal of Interconnection Networks 02, no. 01 (2001): 49–67. http://dx.doi.org/10.1142/s0219265901000257.

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This paper proposes a new medium access control (MAC) protocol, called Request-TDMA/CDMA, for supporting multimedia traffic in wireless networks. In this hybrid protocol, CDMA (code division multiple access) is laid over TDMA (time division multiple access), where a time frame has two kinds of slots, namely data slots and control slots. The data slots are used to the user to transmit their data while the control slot holds the information for the next frame's slot allocation. Each data slot in a frame can be simultaneously used by multiple users with the help of uniquely assigned codes. Whenev

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Khan, Sangrez, Ahmad Naseem Alvi, Mohammad Zubair Khan, Muhammad Awais Javed, Omar H. Alhazmi, and Safdar Hussain Bouk. "A novel superframe structure and optimal time slot allocation algorithm for IEEE 802.15.4–based Internet of things." International Journal of Distributed Sensor Networks 16, no. 12 (2020): 155014772098464. http://dx.doi.org/10.1177/1550147720984645.

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IEEE 802.15.4 standard is specifically designed for a low-rate and low-processing Internet of things (IoT) applications and offers guaranteed time slots. A beacon-enabled IEEE 802.15.4 consists of a superframe structure that comprises of the contention access period and contention-free period. During contention-free period, nodes transfer their data using guaranteed time slots without any collision. The coordinator node receives data transmission requests in one cycle and allocates guaranteed time slots to the nodes in the next cycle. This allocation process may cause large delay that may not

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HG, Mohan. "CAR PARKING SLOT DETECTION USING YOLO ALGORITHM." INTERANTIONAL JOURNAL OF SCIENTIFIC RESEARCH IN ENGINEERING AND MANAGEMENT 08, no. 03 (2024): 1–5. http://dx.doi.org/10.55041/ijsrem29713.

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Finding free slots in the parking area has become a major problem that the modern society is facing nowadays, which also leads to traffic overcrowding at the parking area. As the number of vehicles are increasing at a quick pace find parking slots has become difficult. The proposed paper helps to solve the parking problem. In traditional parking system a person has to find vacant slot or a gate keeper needs to inform about the available parking slot at parking area. To address the issue, a system where the user will be able to know the number of vacant slots in a particular parking area along

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Setiawan, Ariyono, Kukuh Tri Prasetyo, Dede Ardian, Anti Manaricha, and Khoirunnisa Larasati. "The Impact of High Foreign Flight Slot Time Requests on National Flights." Technium: Romanian Journal of Applied Sciences and Technology 20 (March 11, 2024): 36–41. http://dx.doi.org/10.47577/technium.v20i.10478.

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Flights are one of the most effective and efficient modes of transportation to reach distant travel destinations. Slot time is the time specified for a flight to land or take off from an airport. The purpose of this study is to find out how changes in the number of foreign flight slots available in a country can affect the national aviation industry. This research was conducted by the method of literature study or literature review. The results suggest that an increase in foreign flight time slots will probably have a negative impact on national flights at the same airport, especially if there

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Bekmezci, Ilker, and Fatih Alagöz. "Delay Sensitive, Energy Efficient and Fault Tolerant Distributed Slot Assignment Algorithm for Wireless Sensor Networks under Convergecast Data Traffic." International Journal of Distributed Sensor Networks 5, no. 5 (2009): 557–75. http://dx.doi.org/10.1080/15501320802300123.

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The scarcest resource for most of the wireless sensor networks (WSNs) is energy and the major factor in energy consumption for WSNs is communication. Not only transmission, but also reception is the source of energy consumption. The lore to decrease energy consumption is to turn off the radio circuit when it is not needed. This is why TDMA is advantageous over contention based methods. A time slot assignment algorithm is an essential part of TDMA based systems. Although centralized time slot assignment protocols are preferred in many WSNs, a centralized approach is not scalable. In this articl

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Khan, Mushtaq, Rahim Khan, Nadir Shah, et al. "Sensing and Device Neighborhood-Based Slot Assignment Approach for the Internet of Things." Applied Sciences 13, no. 8 (2023): 4682. http://dx.doi.org/10.3390/app13084682.

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Concurrent communication constitutes one of the challenging issues associated with IoT networks, as it is highly likely that multiple devices may start communication simultaneously. This issue has become more complex as devices belonging to the IoT networks increasingly become mobile. To resolve this issue, various mechanisms have been reported in the literature. However, none of these approaches has considered the neighborhood information of a server module to resolve this issue. In this paper, a neighborhood-based smart slot allocation scheme for the IoT is presented where member devices are

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Han, Shi-Yuan, and Chang-Yue Zhang. "ASMAC: An Adaptive Slot Access MAC Protocol in Distributed VANET." Electronics 11, no. 7 (2022): 1145. http://dx.doi.org/10.3390/electronics11071145.

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The media access control (MAC) protocol is responsible for channel resource sharing and conflict management in the communication process in VANET, which is of great significance for ensuring efficient and reliable communication. The existing MAC protocol with fixed time slot allocation cannot solve the problem of time slot resource exhaustion or waste when the traffic density is unbalanced. In this paper, we propose an adaptive time slot access MAC protocol in distributed VANET (ASMAC). ASMAC adapts the access time slot according to the driving direction of the vehicle and the traffic density

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Kanchan, Pragati, Chhaya Mhaske, Reena Pagare, and NikhilKumar B. Shardoor. "Real-time Location Based Shared Smart Parking System." E3S Web of Conferences 170 (2020): 03003. http://dx.doi.org/10.1051/e3sconf/202017003003.

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With the growth in population, traffic congestion and parking have become a serious problem. There is the explosive growth of the per capita amount of vehicles. In this paper, a Location-Based Shared Smart Parking System is proposed to solve the parking problem. This system is designed for both private and public parking areas. This system helps the user to find the nearest possible parking area and gives the information related to the availability of parking slots in that respective parking area. The main focus of this system is to reduce the time for finding the parking slot and also avoids

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Geeta, Kalkhambkar, Chindhi Pradeep, and Khanai Rajashri. "Design and Finite Difference Time Domain Analysis of a Dual Band Slotted Microstrip Patch Antenna for Wireless IoT Applications." Indian Journal of Science and Technology 15, no. 15 (2022): 668–76. https://doi.org/10.17485/IJST/v15i15.1904.

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Abstract <strong>Objectives:</strong> To investigate the effect of comb-like slot dimensions on the dualband microstrip antenna performance parameters. <strong>Methods:</strong> Alternate comblike slots are placed on the microstrip patch and the slot dimensions are varied to observe the effect on the antenna performance parameters. The design is simulated in the Mentor Graphics software package. The Mentor Graphics software results are verified with Finite Difference Time Domain (FDTD) analysis in MATLAB. The measured results on the Vector Network Analyzer (VNA) are in good agre

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Qiu, Hanguang, Cejun Cao, Jie Zhen, Hongyong Fu, and Jixiang Zhou. "A Multicircle Order Acceptance Strategy for Dynamic Vehicle Routing Problems Considering Customer Choice of Last-Mile Delivery Modes and Time Slots." International Journal of Information Systems and Supply Chain Management 14, no. 4 (2021): 1–19. http://dx.doi.org/10.4018/ijisscm.2021100101.

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A multicircle order acceptance strategy was proposed to decide whether to accept customer requests for specific last-mile delivery modes (including attended home or reception box delivery) and time slots. The strategy was composed of initializing acceptable time slot allocations, reallocating acceptable time slots, matching reference sites, and assessing time slot deviations. A strategy-oriented insertion algorithm for dynamic vehicle routing problems with hard time windows was constructed, thereby showing the proposed strategy achieves a better balance between revenue and distance than the “f

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COWEN, LENORE, and RUDOLPH MATHAR. "The Offset Problem." Combinatorics, Probability and Computing 6, no. 2 (1997): 159–64. http://dx.doi.org/10.1017/s0963548397002988.

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This paper is concerned with the analysis of locally time-synchronized slot systems for broadcast in packet radio networks. Local synchronization has been proposed in practice as less expensive than global synchronization over very wide areas, or over mobile networks. In the case of two locally coordinated groups of stations, under the assumption that the phase shift on the clocks between the two groups is random, it is shown that the probability of no collision is maximized when occupied slots within each group are chosen consecutively, regardless of the number of total slots, or the number o

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Li, Yanlong, Pengcheng Jiang, Shuaixing Li, Xiao Chen, Qihao He, and Tuyang Wang. "Asymmetric Modulation Physical-Layer Network Coding Based on Power Allocation and Multiple Receive Antennas in an OFDM-UWOC Three-User Relay Network." Photonics 12, no. 2 (2025): 144. https://doi.org/10.3390/photonics12020144.

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In relay-assisted underwater wireless optical communication (UWOC) systems, the traditional time-division-multiplexed relay forwarding strategy faces high latency and low throughput with the increase of relay users. To address these issues, this paper proposes a multiple receiving antenna power allocation-based bit splicing physical layer network coding (MRA-PABS-PNC) method in a three-user asymmetric modulated relay-assisted UWOC scenario. MRA-PABS-PNC reduces the number of multiple access time slots by using multi-antenna reception techniques. At the same time, it employs a bit-splicing meth

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Sugihara, Makoto. "Dynamic Slot Multiplexing Under Operating Modes for TDMA-Based Real-Time Networking Systems." Electronics 9, no. 2 (2020): 224. http://dx.doi.org/10.3390/electronics9020224.

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The Time Division Multiple Access (TDMA) scheme has been proposed as the one which assures real-time messaging in a networking system. In the TDMA scheme, a networking system operates based on time slots which are defined as discrete time units. Some messages are periodically and exclusively assigned to their own time slots and are assured to be sent between network nodes by their own deadline. In this paper, we note that an operating situation of a system determines what functions of the system run. More concretely, an operating situation determines what data the system requires and how frequ

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Echoukairi, Hassan, Abdellah Idrissi, and Fouzia Omary. "New Hierarchical Routing Protocol Based on K-Means Clustering with Exploiting Free Time Slot for Wireless Sensor Networks." International Journal of Interactive Mobile Technologies (iJIM) 16, no. 08 (2022): 165–81. http://dx.doi.org/10.3991/ijim.v16i08.29863.

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The operation time of LEACH protocol is divided into several frames. Each frame consists of a number of equal time slots where the selection of cluster heads and the re-establishment of clusters are periodic. Each member of the cluster exploits its own time slot to transmit the data, then it turns off its radio to reduce energy consumption. Here, the clusters generated are not uniformly distributed and the time slots of the dead member nodes are not allocated. We propose an improved version, which is based simultaneously on the integration of the clustering approach K-Means and the exploitatio

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Echoukairi, Hassan, Abdellah Idrissi, and Fouzia Omary. "New Hierarchical Routing Protocol Based on K-Means Clustering with Exploiting Free Time Slot for Wireless Sensor Networks." International Journal of Interactive Mobile Technologies (iJIM) 16, no. 08 (2022): 165–81. http://dx.doi.org/10.3991/ijim.v16i08.29863.

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The operation time of LEACH protocol is divided into several frames. Each frame consists of a number of equal time slots where the selection of cluster heads and the re-establishment of clusters are periodic. Each member of the cluster exploits its own time slot to transmit the data, then it turns off its radio to reduce energy consumption. Here, the clusters generated are not uniformly distributed and the time slots of the dead member nodes are not allocated. We propose an improved version, which is based simultaneously on the integration of the clustering approach K-Means and the exploitatio

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21

Chavan, Tanvi V. "Parking Slot Booking System using IOT." INTERANTIONAL JOURNAL OF SCIENTIFIC RESEARCH IN ENGINEERING AND MANAGEMENT 08, no. 05 (2024): 1–5. http://dx.doi.org/10.55041/ijsrem35088.

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The escalating problem of finding parking spaces in urban areas and large organizations has led to the need for innovative solutions. To address this issue, we present a "Parking Slot Booking System Using IoT" that offers a smart and efficient way to manage parking spaces. Our system utilizes IoT devices such as Arduino Uno and infrared (IR) motion sensors to monitor parking slot availability in real-time. A user-friendly web application allows users to check the availability of parking slots, book slots in advance, and pay for their parking sessions seamlessly. The system aims to reduce the t

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Tian, Ye, Qingfan Li, Yongxin Feng, and Xiaoling Gao. "A Virtual Channels Scheduling Algorithm with Broad Applicability Based on Movable Boundary." Mathematical Problems in Engineering 2013 (2013): 1–13. http://dx.doi.org/10.1155/2013/391493.

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A virtual channels scheduling algorithm with broad applicability based on movable boundary is proposed. According to the types of date sources, transmission time slots are divided into synchronous ones and asynchronous ones with a movable boundary between them. During the synchronous time slots, the virtual channels are scheduled with a polling algorithm; during the asynchronous time slots, the virtual channels are scheduled with an algorithm based on virtual channel urgency and frame urgency. If there are no valid frames in the corresponding VC at a certain synchronous time slot, a frame of t

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Chen, Quan, Tao Wang, Lianglun Cheng, Yongchao Tao, and Hong Gao. "Energy-Efficient Broadcast Scheduling Algorithm in Duty-Cycled Multihop Wireless Networks." Wireless Communications and Mobile Computing 2019 (February 6, 2019): 1–14. http://dx.doi.org/10.1155/2019/5064109.

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Broadcasting is a fundamental function for disseminating messages in multihop wireless networks. Minimum-Transmission Broadcasting (MTB) problem aims to find a broadcast schedule with minimum number of transmissions. Previous works on MTB in duty-cycled networks exploit a rigid assumption that nodes have only active time slot per working cycle. In this paper, we investigated the MTB problem in duty-cycled networks where nodes are allowed arbitrary active time slots per working cycle (MTBDCA problem). Firstly, it is proved to be NP-hard and o(ln⁡Δ)-inapproximable, where Δ is the maximum degree

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Rom, Raphael, and Moshe Sidi. "Message Delay Distribution in Generalized Time Division Multiple Access (TDMA)." Probability in the Engineering and Informational Sciences 4, no. 2 (1990): 187–202. http://dx.doi.org/10.1017/s0269964800001546.

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In the classical TDMA, which has been the subject of extensive research in the past, a single slot is allocated to each and every user within every frame. In many situations this leads to an inefficient utilization of the channel calling for a nonhomogeneous allocation of slots. This paper focuses on a generalized TDMA scheme in which users are allocated more than a single slot per frame, not necessarily contiguous. We derive the delay distribution and buffer occupancy for such a scheme as well as the expected values of these quantities.

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Giriraja, C. V., V. Chirag, C. Sudheendra, Samarth S. Bellur, T. K. Ramesh, and K. N. Meera. "Priority Based Time-Division Multiple Access Algorithm for Medium Range Data Communication in Very High Frequency Radios." Journal of Computational and Theoretical Nanoscience 17, no. 1 (2020): 290–96. http://dx.doi.org/10.1166/jctn.2020.8664.

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In this paper, A novel and efficient time division multiple access (TDMA) algorithm for military last-mile data communication is designed. A dynamic slot assignment method coupled with an out-of-band control mechanism is used for the proposed design. In out-of-band, there is a well-defined control segment along with the data segment. So, if a new node specifically a high priority node arrives at the network, it can signal its arrival by a response in the designated mini-slots and can also check the slot in the network, if no idle slots are available. Assigning priority to the nodes would also

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Mandiga, Aravind, Guoming Li, Jeanna L. Wilson, Tianming Liu, Venkat Umesh Chandra Bodempudi, and Jacob Hunter Mason. "Quantifying Nesting Behavior Metrics of Broiler Breeder Hens with Computationally Efficient Image Processing Algorithms and Big Data Analytics." AgriEngineering 6, no. 4 (2024): 3672–85. http://dx.doi.org/10.3390/agriengineering6040209.

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Nesting behaviors are important to understand facility design, resource allowance, animal welfare, and the health of broiler breeder hens. How to automatically extract informative nesting behavior metrics of broiler breeder hens remains a question. The objective of this work was to quantify the nesting behavior metrics of broiler breeder hens using computationally efficient image algorithms and big data analytics. Here, 20 broiler breeder hens and 1–2 roosters were raised in an experimental pen, and four pens equipped with six-nest-slot nest boxes were used for analyzing the nesting behaviors

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Yang, Xiaojiao, Bizao Wu, Shixun Wu, Xinxin Liu, and W. G. Will Zhao. "Time Slot Detection-Based M -ary Tree Anticollision Identification Protocol for RFID Tags in the Internet of Things." Wireless Communications and Mobile Computing 2021 (February 4, 2021): 1–10. http://dx.doi.org/10.1155/2021/6638936.

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Recently, a number of articles have proposed query tree algorithms based on bit tracking to solve the multitag collision problem in radio frequency identification systems. However, these algorithms still have problems such as idle slots and redundant prefixes. In this paper, a time slot detection-based M -ary tree (Time Slot Detection based M -ary tree, TSDM) tag anticollision algorithm has been proposed. When a collision occurs, the reader sends a predetection command to detect the distribution of the m -bit ID in the 2m subslots; then, the time slot after predetection is processed according

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Giampouranis, Dimitrios K., Mihalis Golias, Sotirios Theofanis, and Maria Boile. "Berth Allocation at Passenger Terminals Using Auctions." Journal of Marine Science and Engineering 10, no. 8 (2022): 1010. http://dx.doi.org/10.3390/jmse10081010.

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In this paper, we compare a multi-round, second-price, sealed-bid bundle auction and a single-item, sequential, second-price, sealed-bid auction for berth slot leasing for vessels (roll-on/roll-off passenger vessels and/or cruise ships) at a public marine terminal. The bundle auction mechanism is designed to maximize port operator profits by auctioning berth (time) slots in groups. The framework is tested using simulation by varying: the number of roll-on/roll-off passenger/cruise ship operating companies; the number of slots they bid for; and the mechanism design with regards to the winner de

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Ahamada, Youssouf, Salimata G. Diagne, Amadou Coulibaly, D'ethi'e Dione, N'dogotar Nlio, and Youssou Gningue. "Modeling and Resolution of the Allocation Problem of the Time Slots in Dakar Airport." Journal of Mathematics Research 9, no. 3 (2017): 30. http://dx.doi.org/10.5539/jmr.v9n3p30.

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In this article, we proposed a programming linear model in integer numbers(PLIN) for the optimal allocation of the time slots in the international Leopold Sedar Senghor airport of Dakar (L.S.S). The slots are specific allocated periods which allow an aircraft to land or take off in a saturated airport. Their attribution depends on theconfiguration of the airport, more particularly on its capacity. We maximize the confirmed demand in each slot and take the number of aircrafts and the number of manageable passengers with an optimal quality service into account. We used the CPLEX software so that

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G, Raghuraman, Kavitha S, Gokulakrishnan Nitish, Radhakrishnan Santosh, and Ramakrishnan Pranav. "Smart Parking System with Dynamic Pricing Model." Indian Journal of Science and Technology 16, no. 18 (2023): 1332–39. https://doi.org/10.17485/IJST/v16i18.2489.

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Abstract <strong>Objectives:</strong> A Smart Parking System with Dynamic Pricing Model is proposed and developed for vehicle parking management using real time data collected from five popular hotspots in the city of Chennai.<strong> Methods:</strong> The proposed model is developed using polynomial regression algorithm in Python language. The vital parameters considered for training a model are: traffic data, geological distance, time of day, peak hour or not, weekend or not and especially, the number of slots available in the parking lot at the time the user wishes to book a

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Wan Ariffin, Wan Nur Suryani Firuz Wan, Xinruo Zhang, Mohammad Reza Nakhai, Hasliza A. Rahim, and R. Badlishah Ahmad. "Online Learning Approach for Predictive Real-Time Energy Trading in Cloud-RANs." Sensors 21, no. 7 (2021): 2308. http://dx.doi.org/10.3390/s21072308.

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Constantly changing electricity demand has made variability and uncertainty inherent characteristics of both electric generation and cellular communication systems. This paper develops an online learning algorithm as a prescheduling mechanism to manage the variability and uncertainty to maintain cost-aware and reliable operation in cloud radio access networks (Cloud-RANs). The proposed algorithm employs a combinatorial multi-armed bandit model and minimizes the long-term energy cost at remote radio heads. The algorithm preschedules a set of cost-efficient energy packages to be purchased from a

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Dems, Maria, Krzysztof Komeza, Slawomir Wiak, and Sara Fernández Coya. "Influence of the closing rotor slots on the additional losses in the induction motor." COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering 34, no. 2 (2015): 531–49. http://dx.doi.org/10.1108/compel-07-2014-0183.

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Purpose – The purpose of this paper is to present the distribution of the magnetic field and additional losses analysis of the induction motors (IM) with opened and closed rotor slots. Design/methodology/approach – In the field-circuit approach the distribution and changes of magnetic flux density in the motor are computed using a time-stepping finite element method. The additional losses in each element are evaluated at different frequencies. Findings – An approximate analytical formulation is derived for rapid losses computation confirmed by the results of field-circuit method. For high-volt

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Wang, Bin, Jennifer C. Hou, and Ching‐Chih Han. "On dynamically establishing and terminating isochronous message streams in WDM star‐based lightwave networks." Journal of High Speed Networks 11, no. 1 (2002): 45–66. https://doi.org/10.3233/hsn-2002-214.

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Complement to our prior work in [21], we address in this paper the problem of dynamically establishing/terminating real‐time message streams in response to call setup/clear requests in single‐hop star‐coupled WDM optical networks. We consider a network architecture in which N stations are connected to a star coupler with W data channels (W≤N) and one control channel. Each of the W data channels is slotted and shared by the N stations by means of time division multiplexing. The control channel is used for stations to coordinate the call establishment and termination operations. We propose a dis

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Nakano, Satoshi, and Ayu Washizu. "On the Acceptability of Electricity Demand Side Management by Time of Day." Energies 13, no. 14 (2020): 3665. http://dx.doi.org/10.3390/en13143665.

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Advances in the introduction of fluctuating renewable energies, such as photovoltaics (PV), have caused power-system destabilization. However, stability can be improved if consumers change the way they use power, moving to time slots when the PV output in an area is high. In large cities in developed countries, where the types of distributed energy resources are varied, demand side management (DSM) in which consumers share power supplies and adjust the demand has received considerable attention. Under effective DSM that uses the latest information and communication technology to maximize the u

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Hitzig, Gary S., John P. Schwinning, and Seymour L. Handler. "Linear Grafting Using a Modified Slot Method: Introducing the Linear Punch." American Journal of Cosmetic Surgery 14, no. 2 (1997): 113–17. http://dx.doi.org/10.1177/074880689701400204.

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Seeking the overall goal of patient satisfaction, hair transplant surgeons have attempted to combine naturalness with density. This article presents a study of 250 hair transplant patients. In the study, linear slots are compared to other methods of creating hair transplant receptor sites. Punch grafts, micrografts, and linear grafts are compared on six parameters: healing time, time to growth, visibility after 3 weeks, hairline naturalness, hair density, and patient satisfaction. The results indicate that linear grafting using a modified slot method creates a natural swirl of hair more effect

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Prof., Rohan Kokate, Kohad Dishant, Hiwarkar Amita, Godbole Pooja, and Bhasarkar Rutik. "Smart Vehicle Parking Facility and Monitoring System Using ML." International Journal of Innovative Research in Multidisciplinary Education 03, no. 04 (2024): 650–57. https://doi.org/10.5281/zenodo.11064661.

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In response to the exponential growth of vehicles in the last two decades, we propose a Machine Learning-based Smart Parking System designed to address the challenges of parking management without the need for sensors or IoT technology. This system leverages cloud computing and a cyber-physical framework to streamline parking operations, providing real-time information to users about parking slot availability, efficient management of reserved and unreserved slots, detection of anomalies, and intelligent traffic management. With a user-friendly interface, the system minimises human intervention

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Xing, Xinlai, Changmeng Yang, Dafei Lin, Da Teng, Panpan Chen, and Xiaochuan Zhang. "External Slot Relationship Memory for Multi-Domain Dialogue State Tracking." Applied Sciences 13, no. 15 (2023): 8943. http://dx.doi.org/10.3390/app13158943.

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Dialogue state tracking is an essential component in multi-domain dialogue systems that aims to accurately determine the current dialogue state based on the dialogue history. Existing research has addressed the issue of multiple mappings in dialogues by employing slot self-attention as a data-driven approach. However, learning the relationships between slots from a single sample often has limitations and may introduce noise and have high time complexity issues. In this paper, we propose an external slot relation memory-based dialogue state tracking model (ER-DST). By utilizing external memory

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Arya Dwitama, Mariza Wijayanti, Meta Meysawati, Fauziah Fauziah, Yuli Fitriyani, and Dina Agusten. "PROTOTYPE SISTEM KETERSEDIAAN DAN KAPASITAS TEMPAT PARKIR MOBIL BERBASIS ARDUINO UNO." Jurnal Ilmiah Teknik 4, no. 1 (2025): 31–39. https://doi.org/10.56127/juit.v4i1.1841.

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The current parking system still uses a manual parking system, vehicle owners still have difficulty finding an empty parking space because they have to go around the parking area so it is less efficient and takes a long time. This study aims to help car drivers save time in finding parking locations and knowing the availability of parking spaces. In this study, there are two types of input used: infrared sensors, which function to measure the capacity of the parking space, and RFID sensors, which are used to detect cards. The data processing process is carried out using Arduino Uno, while the

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Tinoe Mauludy, Agma, Duman Care Khrisne, and Komang Oka Saputra. "RANCANG BANGUN APLIKASI PENCARIAN SLOT PARKIR KOSONG UNTUK KENDARAAN RODA EMPAT DENGAN PENDEKATAN COMPUTER VISION." Jurnal SPEKTRUM 7, no. 1 (2020): 36. http://dx.doi.org/10.24843/spektrum.2020.v07.i01.p5.

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Parking space is a facility that must be available in public places, both in shopping areas, offices, hospitals and other places. In general, parking lots only provide parking slots to occupy cars without a system that provides information to the driver about the availability of parking slots, often the driver must surround the parking area to determine whether there are still parking slots that can be occupied. Design and build this application using the Computer Vision method, with the help of CCTV cameras. In making this application, the reference object for detection is a four-wheeled vehi

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Martin, Neil E., Spyros Potiris, Robert Mersereau, et al. "Improving the efficiency of a block schedule for treatment planning simulation in a radiation oncology department." Journal of Clinical Oncology 32, no. 30_suppl (2014): 158. http://dx.doi.org/10.1200/jco.2014.32.30_suppl.158.

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158 Background: The use of a weekly assigned block time schedule to allocate appointment slots to providers for treatment planning simulations caused appointment delays, provider frustration, and a perceived lack of capacity at the Dana-Farber/Brigham and Women's Cancer Center Department of Radiation Oncology. While providing predictability for physician schedules, the slots assigned to individual providers often could not accommodate their patient volume or patient availability. Consequently, providers in need of additional slots had to ‘borrow’ them from other providers. To increase schedule

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Bekmezci, Ilker, and Fatih Alagoz. "A New Distributed Slot Assignment Algorithm for Wireless Sensor Network Under Convergecast Data Traffic." Journal of Communications Software and Systems 2, no. 4 (2017): 331. http://dx.doi.org/10.24138/jcomss.v2i4.278.

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The scarcest resource for most of the wireless sensor networks (WSNs) is energy and one of the major factors inenergy consumption for WSNs is due to communication. Notonly transmission but also reception is the source of energyconsumption. The lore to decrease energy consumption is toturn off radio circuit when it is not needed. This is why TDMA has advantages over contention based methods. Time slot assignment algorithm is an essential part of TDMA based systems. Although centralized time slot assignment protocols are preferred in many WSNs, centralized approach is not scalable. In this paper

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Letanovská, Mária. "Different Allocation Systems." Transport and Communications 2, no. 1 (2014): 12–15. http://dx.doi.org/10.26552/tac.c.2014.1.4.

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Based on the London´s airports example it is obvious that there are differences between 3rd level airports. If the same coordination system would be introduced within various coordinated airports it could lead to various results. The results of analysis of intra-EU route data indicate that larger aircraft have been used at the 3rd level airports and there is no strong evidence of inefficient slot hoarding at these airports, not only before but also after the EC’s recognition of secondary slot trading. In contrast, the analysis of slot trading at Heathrow and Gatwick show that slot trading has

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Rao, Wen Yuan. "A Novel Method for Reducing Cross-Slot Interference between Base Stations in TD-SCDMA System." Applied Mechanics and Materials 278-280 (January 2013): 1862–65. http://dx.doi.org/10.4028/www.scientific.net/amm.278-280.1862.

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TD-SCDMA system can dynamically allocates time slots between uplink and downlink according to local service requirement, which causes cross-slot interference if adjacent cells have different direction links in the same slot. Because of the specialty of cross-slot interference between base stations, traditional methods which subtract interference in digital baseband don’t work well. A novel method is proposed. Simulation indicates that this scheme can effectively reduce the cross-slot interference.

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Lu, Jun, and De Zhi An. "TDMA-Based Time Slots Assignment Algorithm." Applied Mechanics and Materials 241-244 (December 2012): 2445–53. http://dx.doi.org/10.4028/www.scientific.net/amm.241-244.2445.

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In this paper we studied timeliness of TDMA-based MAC scheduling mechanisms. TDMA-based MAC protocols require sensor nodes to deliver data individually so as to eliminate collisions in shared channel. This scheduling mechanism can assist sensor nodes in managing energy efficiently since data resending that collisions induced has a significant impact on battery life. But during medium access arbitration, the elected central node has to receive other nodes’ state messages one by one before assigning time slots for each node. While in large-scale sensor networks, the waiting time would be a relat

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Sayeed, Md Shohel, Huzaifah Abdulrahim, Siti Fatimah Abdul Razak, Umar Ali Bukar, and Sumendra Yogarayan. "IoT Raspberry Pi Based Smart Parking System with Weighted K-Nearest Neighbours Approach." Civil Engineering Journal 9, no. 8 (2023): 1991–2011. http://dx.doi.org/10.28991/cej-2023-09-08-012.

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Due to the limited availability of parking slots in parking areas, drivers often have difficulty finding an empty parking slot. The number of parking slots available at a particular location is usually less than the number of vehicles. Hence, drivers spend a lot of time looking for vacant parking slots, which eventually delays the completion of their tasks, such as paying bills, attending a meeting, or visiting a patient at the hospital, etc. There are a couple of parking guidance systems that have been highlighted by the other researchers, but most of them lack real-time, convenient guidance.

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McDonald, David, and François Théberge. "Cell loss probability for M/G/1 and time-slotted queues." Journal of Applied Probability 37, no. 4 (2000): 1149–56. http://dx.doi.org/10.1239/jap/1014843095.

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It is common practice to approximate the cell loss probability (CLP) of cells entering a finite buffer by the overflow probability (OVFL) of a corresponding infinite buffer queue, since the CLP is typically harder to estimate. We obtain exact asymptotic results for CLP and OVFL for time-slotted queues where block arrivals in different time slots are i.i.d. and one cell is served per time slot. In this case the ratio of CLP to OVFL is asymptotically (1-ρ)/ρ, where ρ is the use or, equivalently, the mean arrival rate per time slot. Analogous asymptotic results are obtained for continuous time M/

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McDonald, David, and François Théberge. "Cell loss probability for M/G/1 and time-slotted queues." Journal of Applied Probability 37, no. 04 (2000): 1149–56. http://dx.doi.org/10.1017/s0021900200018349.

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It is common practice to approximate the cell loss probability (CLP) of cells entering a finite buffer by the overflow probability (OVFL) of a corresponding infinite buffer queue, since the CLP is typically harder to estimate. We obtain exact asymptotic results for CLP and OVFL for time-slotted queues where block arrivals in different time slots are i.i.d. and one cell is served per time slot. In this case the ratio of CLP to OVFL is asymptotically (1-ρ)/ρ, where ρ is the use or, equivalently, the mean arrival rate per time slot. Analogous asymptotic results are obtained for continuous time M/

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Zhang, Chen, Jiangtao Yang, Yong Zhang, Ziwei Liu, and Gengxin Zhang. "Dynamic Beam Hopping Time Slots Allocation Based on Genetic Algorithm of Satellite Communication under Time-Varying Rain Attenuation." Electronics 10, no. 23 (2021): 2909. http://dx.doi.org/10.3390/electronics10232909.

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Beam hopping technology is considered to provide a high level of flexible resource allocation to manage uneven traffic requests in multi-beam high throughput satellite systems. Conventional beam hopping resource allocation methods assume constant rainfall attenuation. Different from conventional methods, by employing genetic algorithm this paper studies dynamic beam hopping time slots allocation under the effect of time-varying rain attenuation. Firstly, a beam hopping system model as well as rain attenuation time series based on Dirac lognormal distribution are provided. On this basis, the dy

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Mahfoudh, Saoucene, and Pascale Minet. "Maximization of Energy Efficiency in Wireless ad hoc and Sensor Networks With SERENA." Mobile Information Systems 5, no. 1 (2009): 33–52. http://dx.doi.org/10.1155/2009/239263.

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In wireless ad hoc and sensor networks, an analysis of the node energy consumption distribution shows that the largest part is due to the time spent in the idle state. This result is at the origin of SERENA, an algorithm to SchEdule RoutEr Nodes Activity. SERENA allows router nodes to sleep, while ensuring end-to-end communication in the wireless network. It is a localized and decentralized algorithm assigning time slots to nodes. Any node stays awake only during its slot and the slots assigned to its neighbors, it sleeps the remaining time. Simulation results show that SERENA enables us to ma

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J, Srushti M., Ravindra S, Spoorthi K. S, T. S. Chandana, and Indu Priya Shirisha. "Parking Slot Vacancy Detection Using Machine Learning." International Journal for Research in Applied Science and Engineering Technology 12, no. 12 (2024): 1187–91. https://doi.org/10.22214/ijraset.2024.66006.

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Abstract: Parking congestion is a persistent issue in urban environments, leading to wasted time, fuel, and environmental impact. This paper introduces a 'Parking Slot Vacancy Detection System' that leverages real-time video feeds and machine learning algorithms, specifically Mask- RCNN, to accurately detect vacant and occupied parking slots. Predefined slot mapping, vehicle detection, and real- time processing are combined to provide efficient and scalable solutions. The proposed system minimizes errors caused by lighting variations or overlapping objects, aiming to enhance parking lot utiliz

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