Relevant bibliographies by topics / Demand assignment multiple access

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers

Academic literature on the topic 'Demand assignment multiple access'

Author: Grafiati
Published: 4 June 2021
Last updated: 13 February 2022

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Journal articles on the topic "Demand assignment multiple access"

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Ha, Tri T. "Circuit switched demand assignment multiple access." Telematics and Informatics 3, no. 1 (January 1986): 11–24. http://dx.doi.org/10.1016/s0736-5853(86)80034-x.

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Jiang, Zhifeng, and Victor C. M. Leung. "A predictive demand assignment multiple access protocol for Internet access over broadband satellite networks." International Journal of Satellite Communications and Networking 21, no. 4-5 (2003): 451–67. http://dx.doi.org/10.1002/sat.759.

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LE-NGOC, THO, and S. V. KRISHNAMURTHY. "PERFORMANCE OF COMBINED FREE/DEMAND ASSIGNMENT MULTIPLE-ACCESS SCHEMES IN SATELLITE COMMUNICATIONS." International Journal of Satellite Communications 14, no. 1 (January 1996): 11–21. http://dx.doi.org/10.1002/(sici)1099-1247(199601)14:1<11::aid-sat526>3.0.co;2-x.

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Karol, Mark J., Zhao Liu, and Kai Y. Eng. "An efficient demand-assignment multiple access protocol for wireless packet (ATM) networks." Wireless Networks 1, no. 3 (September 1995): 267–79. http://dx.doi.org/10.1007/bf01200846.

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Leung, V. C. M., M. O. Ali, and A. I. Spolsky. "An efficient demand-assignment multiple-access scheme for satellite mobile radio dispatch networks." IEEE Transactions on Vehicular Technology 38, no. 4 (1989): 204–10. http://dx.doi.org/10.1109/25.45482.

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Mitchell, P. D., D. Grace, and T. C. Tozer. "Burst Targeted Demand Assignment Multiple-Access for Broadband Internet Service Delivery Over Geostationary Satellite." IEEE Journal on Selected Areas in Communications 22, no. 3 (April 2004): 546–58. http://dx.doi.org/10.1109/jsac.2004.823438.

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Saini, Trilok Kumar, and S. C. Sharma. "Self managed Access Scheme for Demand Request in TDM TDMA Star Topology Network." Defence Science Journal 69, no. 1 (January 10, 2019): 80–86. http://dx.doi.org/10.14429/dsj.69.11992.

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In demand assignment protocol, resources are granted on the basis of demand, governing some rules, policies in resource assignment and after the completion of need, resources are released back to the central pool for further requests. In star topology TDM/TDMA network of VSATs, large number of participating terminals generate signaling packet on common demand request channel. It is desired that these signaling terminals to have higher chances of successful access to the media and at the same time with minimal number of collision over the shared channel. Under these circumstances, performance of media access protocol is really crucial. Aloha is the simplistic technique to access the shared channel but suffers from extremely low throughput. Its immediate successor slotted Aloha improves the throughput by cutting down the vulnerable period to half by agreeing on transmission at slot boundaries. This improvement is also not adequate to provide the better chances of packets getting through when multiple nodes are participating. The large latency network where one hop delay is of the order of 270ms, feedback time and timeouts are also of high order this further worsen the problem. In this paper, we propose self-managed access scheme for demand request that tries to reduce the collision by managing the multiple requests and distributing them over different slots.
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Hoekstra, Gerbrich, and Frank Phillipson. "Heuristic Approaches for Location Assignment of Capacitated Services in Smart Cities." Computers 7, no. 4 (December 3, 2018): 67. http://dx.doi.org/10.3390/computers7040067.

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This paper proposes two heuristic approaches to solve the Multi-Service Capacitated Facility Location Problem. This problem covers assigning equipment to access points, offering multiple services in a Smart City context. The access points should offer the services to the customer and fulfil their demand, given the coverage of the service and their capacity constraints. Both the heuristic approaches solve the assignment problem for the services separately and combine the solutions of the step together. One of them, however, updates the cost parameters between consecutive steps and produce near optimal solutions in reasonable time compared to the solution obtained from solving an integer linear programming problem exactly.
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Rappaport, S. S., V. C. M. Leung, M. O. Ali, and A. I. Spolsky. "Comments on "An efficient demand-assignment multiple-access scheme for satellite mobile radio dispatch networks" [with reply]." IEEE Transactions on Vehicular Technology 39, no. 3 (August 1990): 277. http://dx.doi.org/10.1109/25.131010.

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Huang, Yu-Li, Narges Shahraki, Erin M. Wallin, Eric W. Klavetter, and Kyle W. Klarich. "Provider time allotment tracking tool to effectively manage assignment commitments." Journal of Hospital Administration 10, no. 3 (May 11, 2021): 10. http://dx.doi.org/10.5430/jha.v10n3p10.

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Due to the rising demand with limited health service capacity, managing available resources effectively becomes an important task to reduce patient care delays and avoid unnecessary and costly capacity expansions. At the same time, staff satisfaction and/or burnout is a complementary consideration when designing optimal schedules. Deviation from the scheduled plan can cause delays in patient access and may lead to unsatisfaction among providers. Balancing demand management, staff satisfaction and generating optimized schedules quickly reveals the need for a tool that tracks provider time allotment over time, especially for the academic healthcare organization where providers are committed to multiple assignments, clinical and non-clinical. This tracking tool should allow management to proactively adjust allotment to unplanned changes in the schedule and increase participation. In this study, a tool is developed to track monthly provider assignments for the Department of Cardiovascular Medicine at Mayo Clinic, Rochester. The proposed tool produces two key outputs for each provider and assignment: 1) the recommended target workdays and 2) workday upper and lower bounds to accommodate for variability. This tracking tool is successfully implemented with implementation criteria, and the feedback is positive. The tool pulls the data systematically from the Mayo data platform and performs the necessary analysis on the data. It also automatically updates the values for the recommended target as well as upper and lower bounds for the remaining months in a year based on changes in the schedule so that provider commitment can be met at the end of year.
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Dissertations / Theses on the topic "Demand assignment multiple access"

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Sanchez, Monica A. "Doppler Extraction for a Demand Assignment Multiple Access Service for NASA's Space Network." International Foundation for Telemetering, 1996. http://hdl.handle.net/10150/611433.

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International Telemetering Conference Proceedings / October 28-31, 1996 / Town and Country Hotel and Convention Center, San Diego, California
NASA's Space Network (SN) provides both single access (SA) and multiple access (MA) services through a pre-scheduling system. Currently, a user's spacecraft is incapable of receiving service unless prior scheduling occurred with the control center. NASA is interested in efficiently utilizing the time between scheduled services. Thus, a demand assignment multiple access (DAMA) service study was conducted to provide a solution. The DAMA service would allow the user's spacecraft to initiate a service request. The control center could then schedule the next available time slot upon owner approval. In this paper, the basic DAMA service request design and integration is presented.
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Horan, Stephen. "An Operational Concept for a Demand Assignment Multiple Access System for the Space Network." International Foundation for Telemetering, 1996. http://hdl.handle.net/10150/611436.

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International Telemetering Conference Proceedings / October 28-31, 1996 / Town and Country Hotel and Convention Center, San Diego, California
An operational concept for how a Demand Access Multiple Assignment (DAMA) system could be configured for the NASA Space network is examined. Unique aspects of this concept definition are the use of the Multiple Access system within the Space Network to define an order wire channel that continuously scans the Low Earth Orbit space for potential users and the use of advanced digital signal processing technology to look for the Doppler-shifted carrier signal from the requesting satellite. After the reception of the signal, validation and processing of the request is completed. This paper outlines the concept and the ways in which the system could work.
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Gineste, Mathieu. "Spécification d'un cadre générique pour l'expression et le déploiement de la Qualité de Service dans les architectures de communication : application à une architecture de communication par satellite." Paris 6, 2006. http://www.theses.fr/2006PA066267.

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L’évolution des applications vers le multimédia et des réseaux vers une hétérogénéité d’architectures protocolaires, a placé la notion de Qualité de Service au cœur des architectures de communication émergentes ; Ceci soulève la question de l’expression de la QdS et de l’adaptation aux besoins applicatifs de la diversité des services disponibles. Cette thèse propose un cadre sémantique et syntaxique pour décrire les contraintes applicatives et les services sous-jacents, et sélectionner et composer les services de communication, répondant aux besoins applicatifs. Les systèmes satellitaires intègrent une propriété naturelle de diffusion de l’information, ce qui en fait un composant de l’Internet de nouvelle génération. Nous montrons comment, grâce au cadre générique, les services orientés gestion de QdS spécifiques d’une architecture de communication satellitaire peuvent être composés, afin de délivrer une adaptation efficace entre les ressources satellitaires et les besoins applicatifs.
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JAIN, VIVEK. "ON-DEMAND MEDIUM ACCESS IN HETEROGENEOUS MULTIHOP WIRELESS NETWORKS." University of Cincinnati / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1177508938.

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Arthur, Joseph E. "Global Broadcast Service reach back via ultra high frequency demand assigned multiple access satellite communications." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1998. http://handle.dtic.mil/100.2/ADA349710.

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Thesis (M.S. in Systems Technology) Naval Postgraduate School, June 1998.
"June 1998." Thesis advisor(s): Paul H. Moose, Roy A. Axford. Includes bibliographical references (p. 57-58). Also available online.
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Nuno, Fusao. "Quality-of-Service Control Scheme for Wireless Local Area Networks." 京都大学 (Kyoto University), 2014. http://hdl.handle.net/2433/192223.

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Gong, Michelle Xiaohong. "Improving the Capacity in Wireless Ad Hoc Networks through Multiple Channel Operation: Design Principles and Protocols." Diss., Virginia Tech, 2005. http://hdl.handle.net/10919/28052.

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Despite recent advances in wireless local area network (WLAN) technologies, today's WLANs still cannot offer the same data rates as their wired counterparts. The throughput problem is further aggravated in multi-hop wireless environments due to collisions and interference caused by multi-hop routing. Because all current IEEE 802.11 physical (PHY) standards divide the available frequency into several orthogonal channels, which can be used simultaneously within a neighborhood, increasing capacity by exploiting multiple channels becomes particularly appealing. To improve the capacity of wireless ad hoc networks by exploiting multiple available channels, I propose three principles that facilitate the design of efficient distributed channel assignment protocols. Distributed channel assignment problems have been proven to be NP-complete and, thus, computationally intractable. Though being a subject of many years of research, distributed channel assignment remains a challenging problem. There exist only a few heuristic solutions, none of which is efficient, especially for the mobile ad hoc environment. However, protocols that implement the proposed design principles are shown to require fewer channels and exhibit significantly lower communication, computation, and storage complexity, compared with existing approaches. As examples, I present two such protocols that build on standard reactive and proactive routing protocols. In addition, I prove the correctness of the algorithms and derive an upper bound on the number of channels required to both resolve collisions and mitigate interference. A new multi-channel medium access control (MC-MAC) protocol is also proposed for multi-hop wireless ad hoc networks. MC-MAC is compatible with the IEEE 802.11 medium access control (MAC) standard and imposes the minimum system requirements among all existing multi-channel MAC protocols. In addition, simulation results show that even with only a single half-duplex transceiver, MC-MAC, by exploiting multiple channels, can offer up to a factor of four improvement in throughput over the IEEE 802.11 MAC protocol. The reduction in delay is even more significant. Therefore, the MC-MAC protocol and the accompanying distributed channel assignment protocols constitute an effective solution to the aforementioned performance problem in a multi-hop wireless network. Finally, I generalize the cross-layer design principle to more general networking functions and present a network architecture to motivate and facilitate cross-layer designs in wireless networks. A literature survey is provided to validate the proposed cross-layer design architecture. Current cross-layer design research can be categorized into two classes: joint-layer design using optimization techniques, and adaptive techniques based on system-profile and/or QoS requirements. Joint-layer design based on optimization techniques can achieve optimal performance, but at the expense of complexity. Adaptive schemes may achieve relatively good performance with less complexity. Nevertheless, without careful design and a holistic view of the network architecture, adaptive schemes may actually cause more damage than benefit.
Ph. D.
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Louis, Lee Winnie. "Flexible-schedule-based TDMA protocols for supporting fault-tolerance, on-demand TDMA slot transfer, and peer-to-peer communication in wireless sensor networks." University of Western Australia. School of Computer Science and Software Engineering, 2008. http://theses.library.uwa.edu.au/adt-WU2008.0028.

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[Truncated abstract] This thesis develops a scheduled protocol (time division multiple access, TDMA) called flexible-schedule-based TDMA Protocol (FlexiTP), to address the problem of providing end-to-end guarantees on data delivery, whilst also respecting severe resource constraints of wireless sensor networks. FlexiTP achieves this balance through a distributed, synchronised, and loose slot structure in which sensor nodes can build, modify, or extend their schedules based on their local information. In FlexiTP, it is not necessary to predetermine the number of slots required for a network. FlexiTP's local repair scheme allows nodes to adjust their schedules dynamically and autonomously to recover from node and communication faults. Hence, it maintains a reliable and selforganising multihop network. Most sensor network protocols designed for data gathering applications implicitly assume a periodic rate of data collection from all nodes in the network to the base station. However, nodes may want to report their data more rapidly or slowly depending on the significance and importance of their data to the end-user. The problem is that traditional TDMA-based protocols are not flexible to changes in traffic patterns because of their rigid slot structure schemes. This thesis aims to solve this problem by developing an ondemand TDMA slot transfer method that leverages the flexible-slot structure algorithm of FlexiTP to transfer time slots from one part of the network to another part. ... While these communication patterns are sufficient for monitoring applications, individual sensor nodes may need to send their data to multiple destination nodes across the network in order to execute a distributed cooperative-function based on their local environment. This peer-to-peer communication pattern makes sensor networks more reactive to triggers from the environment. This thesis attempts to solve the problem of lack of peer-to-peer communication in the design of a TDMA-driven protocol by extending the idea of on-demand TDMA slot transfer method to allow each sensor node in the network to claim extra time slots to communicate with any other nodes (peers) in the network, without going through the base station. Nodes in the network may have different priorities of data because of event-triggering sensor readings or various types of sensor readings (e.g., light, temperature, and humidity) they provide. When nodes with high priority packets increase the frequency of their data collections, the network bandwidth may be dominated by these nodes. It is desirable to allow nodes with low priority packets to aggregate their packets and so enabling these nodes to send their data to the base station under the current available network bandwidth. This thesis proposes an on-demand data aggregation algorithm that enables sensor nodes to perform an in-network-aggregation based on their current sensing requirements and network capacity constraints. In summary, this thesis describes the design, implementation, and evaluation of protocols for wireless sensor networks that focus on achieving energy-efficiency, provisioning performance assurances, and supporting reactivity and adaptability in constantly changing environment.
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Gitlin, Thomas, Diem V. Nguyen, Marc Harlacher, and Robert Smarrelli. "NEXT GENERATION TDRSS MA BEAMFORMING SUBSYSTEM." International Foundation for Telemetering, 2000. http://hdl.handle.net/10150/608273.

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International Telemetering Conference Proceedings / October 23-26, 2000 / Town & Country Hotel and Conference Center, San Diego, California
The Tracking and Data Relay Satellite System (TDRSS) Multiple Access (MA) Return Service provides a communication path that originates at a customer platform (either a spacecraft or other type of emitter) and is routed through a geosynchronous Tracking and Data Relay Satellite (TDRS) back to a customer control center or data acquisition location. Conventional operations provide Space Network (SN) customers with MA Service based on a schedule generated from user requests. The MA Service currently provides return link telemetry services to customer platforms with real-time, playback, and science data rates up to 100 kbps. This paper describes an integrated approach, using state-of-the-art technology and fault-tolerant architecture, to develop the next generation of TDRSS MA beamforming equipment. New designs will result in significant reduction in beamformer size and cost by at least an order of magnitude relative to the current MA equipment. This new equipment will provide the potential for increased usage of TDRSS MA services. The paper describes the in-development Demand Access (DA) Return Service that provides a new class of service using next generation technology.
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Santos, Alex Ferreira dos. "Algoritmos para alocação de banda em redes de acesso GPON." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/18/18155/tde-11032010-160905/.

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Neste trabalho propomos e analisamos algoritmos de alocação dinâmica de banda para rede óptica passiva (PON) de acesso padrão GPON (Gigabit PON). Estes algoritmos utilizam dados oriundos de SLA (service level agreement) para gerenciar a alocação de banda e classificar em 4 contêineres de tráfego (T-CONT) o tráfego gerado em 16 ONUs (optical network unit). Na transmissão upstream é utilizada a técnica de multiplexação por divisão de tempo (TDM) para gerenciar o acesso ao meio, evitando colisões. O primeiro algoritmo proposto aloca banda garantida para as ONUs e distribui a banda não utilizada de acordo com critério baseado em três SLAs. A taxa de bit upstream é 1,25 Gbps e o desempenho do algoritmo é analisado com base na variação do atraso de pacotes em função do tráfego gerado nas ONUs. O segundo algoritmo proposto utiliza ponderação de tráfego. Neste, analisamos o comportamento dos atrasos e a quantidade de banda solicitada e atendida por ONU quando as bandas garantida e extra são alteradas. Por fim, acrescentamos em nossa implementação um intervalo para o processamento do algoritmo de alocação dinâmica de banda (DBA) e resposta do hardware relacionado ao ciclo de interrogação. Então, analisamos o atraso de pacotes quando variamos o intervalo de processamento do DBA. Ao final, propomos uma solução preliminar para minimizar estes atrasos. Os resultados obtidos por meio de simulação computacional mostram a versatilidade dos algoritmos.
In this work we propose and analyze the performance of dynamic bandwidth allocation algorithms for optical passive networks (PON) in GPON standard (Gigabit PON). These algorithms use data from SLA (service level agreement) to manage bandwidth allocation and classify in 4 traffic containers (T-CONT) the traffic generated by 16 ONUs (optical network unit). In the upstream transmission the time division multiplexing (TDM) technique is used to manage the medium access, avoiding collisions. The first proposed algorithm allocates guaranteed bandwidth for the ONUs and distributes the bandwidth not used according to the criteria based on three SLAs. The upstream bit rate is 1.25 Gbps and the algorithm performance is analyzed based on the packets delay variation versus the traffic generated by ONUs. The second proposed algorithm uses weighted traffic. In this, we analyze the delay performance and the required bandwidth for each ONU and how much it is served when the guaranteed and extra bandwidth are changed. Finally, we added in our implementation an interval for the processing of the dynamic bandwidth allocation algorithm (DBA) and response of the hardware related to the interrogation cycle. In the end, we propose a preliminary solution to minimize these delays. The results obtained by means of computational simulation show the versatility of the algorithms.
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Books on the topic "Demand assignment multiple access"

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Feldman, Phillip M. An overview and comparison of demand assignment multiple access (DAMA) concepts for satellite communications networks. Santa Monica, CA: RAND, 1996.

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Arthur, Joseph E. Global Broadcast Service reach back via ultra high frequency demand assigned multiple access satellite communications. Monterey, Calif: Naval Postgraduate School, 1998.

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United States. National Aeronautics and Space Administration., ed. Data processing for NASA's TDRSS DAMA channel: A technical report in partial fulfillment of the requirement for the degree Master of Science in Electrical Engineering. [Washington, DC: National Aeronautics and Space Administration, 1996.

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United States. National Aeronautics and Space Administration., ed. Channel access schemes and fiber optic configurations for integrated-services local area networks. Stanford, CA: Computer Systems Laboratory, Stanford University, 1987.

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TDRS MA phased-array antenna simulations. [Las Cruces, N.M.?]: Center for Space Telemetering and Telecommunications Systems, Klipsch Dept. of Electrical Engineering, New Mexico State University, 1995.

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1954-, Horan Stephen John, and United States. National Aeronautics and Space Administration., eds. TDRS MA phased-array antenna simulations. [Las Cruces, N.M.?]: Center for Space Telemetering and Telecommunications Systems, Klipsch Dept. of Electrical Engineering, New Mexico State University, 1995.

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1954-, Horan Stephen John, and United States. National Aeronautics and Space Administration., eds. TDRS MA phased-array antenna simulations. [Las Cruces, N.M.?]: Center for Space Telemetering and Telecommunications Systems, Klipsch Dept. of Electrical Engineering, New Mexico State University, 1995.

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Global Broadcast Service Reach Back Via Ultra High Frequency Demand Assigned Multiple Access Satellite Communications. Storming Media, 1998.

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Healey, Richard. Observation and Objectivity. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780198714057.003.0011.

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The paradox of Wigner’s friend presents a challenge to the objectivity of description in quantum theory. Distinguishing several aspects of objectivity, I address this challenge. Relativization of quantum state assignment to agent situation disposes of the main problem and a residual worry concerning the objective content of magnitude claims about macroscopic records of outcomes. While Quantum Darwinism cannot alone secure the objectivity of outcomes, it can then help to show why claims about them are intersubjectively verifiable as multiple observers examine records of the outcome in different parts of the environment. A recent extension of the paradox shows why even a true claim about the outcome of a measurement is not transcendentally objective in the sense that it corresponds to a reality that transcends all possibility of observational access by the scientific community.
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Book chapters on the topic "Demand assignment multiple access"

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Weik, Martin H. "demand assignment multiple access." In Computer Science and Communications Dictionary, 383. Boston, MA: Springer US, 2000. http://dx.doi.org/10.1007/1-4020-0613-6_4691.

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Shanmuganathan, C., and P. Raviraj. "A Comparative Analysis of Demand Assignment Multiple Access Protocols for Wireless ATM Networks." In Communications in Computer and Information Science, 523–33. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-24043-0_53.

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Weik, Martin H. "assignment multiple access." In Computer Science and Communications Dictionary, 67. Boston, MA: Springer US, 2000. http://dx.doi.org/10.1007/1-4020-0613-6_898.

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Weik, Martin H. "demand / assignment access plan." In Computer Science and Communications Dictionary, 383. Boston, MA: Springer US, 2000. http://dx.doi.org/10.1007/1-4020-0613-6_4690.

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Linnenbank, George R. J., Pallapa Venkataram, Paul J. M. Havinga, Sape J. Mullender, and Gerard J. M. Smit. "R-TDMA: A Dynamic Multiple Access Protocol Using Bandwidth on Demand and Priorities." In Mobile Multimedia Communications, 173–80. Boston, MA: Springer US, 1997. http://dx.doi.org/10.1007/978-1-4899-0151-4_22.

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Li, Shengzu. "A Highly Reliable and Efficient Demand-Assigned Multiple Access Protocol (DAMAP) for Multihop Mobile Radio Networks." In Kommunikation in verteilten Systemen, 157–71. Berlin, Heidelberg: Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-642-76462-2_12.

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Erdoğan, Armağan, and M. Murat Erdoğan. "Syrian University Students in Turkish Higher Education: Immediate Vulnerabilities, Future Challenges for the European Higher Education Area." In European Higher Education Area: Challenges for a New Decade, 229–52. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-56316-5_16.

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Abstract Since 2011, millions of Syrian people have had to leave their country and seek shelter in neighbouring countries and in Europe. Forced migration or displacement creates multiple vulnerabilities while trying to settle in a new environment. Socioeconomic, cultural and psychological vulnerabilities hinder them from participating actively in society. Higher education is one of the main ways that refugees and displaced people cling to hope for a better life. Their access to and participation in higher education has been a challenging route for many reasons both for themselves and also for the higher education systems and universities in their host countries. Turkey has a unique place in regard to Syrian refugees. It hosts the largest refugee population in the world with 3.6 million Syrians and 500,000 asylum seekers from other countries, such as Iraq, Iran, Afghanistan and Pakistan. Turkey has a young population with the 5–17 age group comprising 21% of the population, but the Syrian population is much younger as its rate is 30%. Turkey is also the country with the largest student population in the European Higher Education Area. The incomparable magnitude of the situation, among others, plays a crucial role in developing new integration policies. In spite of the ongoing difficulties and challenges, the past nine years proved a success story in protection, social cohesion and integration of these newcomers. Turkey has been suffering from some challenges, such as a supply and demand imbalance in higher education. Demographic factors, shortcomings of the higher education system and the unemployment rate among university graduates have been some long-term challenges for Turkish higher education. Moreover, a common misconception in public opinion, that Syrian refugees are admitted to Turkish universities without fulfilling the requirements, adds new challenges for future policies. Both the sheer number of migrants and also the emergency of the situation during this migration flow necessitated some action to be taken in the area of higher education. In a country like Turkey, where there is high competition between students to pass the nationwide university selection exam each year, encouraging Syrian students to access higher education seems to be an area for discussion. This paper is based on the fieldwork of research conducted in the context of the Hopes-MADAD project entitled “Elite Dialogue II- Dialogue with Syrian Refugees in Turkey through Syrian Academics and Students” in 2019. The main research subject is which types of vulnerabilities Syrian university students face, and how they can integrate into society in Turkey. New approaches and definitions are needed to touch the actual needs of the refugees to be actively involved into society. Nevertheless, research on the higher education practices of vulnerable groups in general, and of Syrian students in particular, is largely missing.
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Lagkas, Thomas D. "Hybrid Approach to Integrated QoS Capable Protocols for Wireless LANs." In Wireless Network Traffic and Quality of Service Support, 1–29. IGI Global, 2010. http://dx.doi.org/10.4018/978-1-61520-771-8.ch001.

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The recent evolution of wireless networking has led the market to increased service demands. Thus, the emerged necessity is to develop specialized mechanisms that provide efficient QoS (Quality of Service) for both traditional and modern network applications in the challenging wireless environment. The respective IEEE proposal comes from the 802.11e workgroup which has developed the Hybrid Coordination Function (HCF). HCF is definitely capable of providing QoS, however, it exhibits significant limitations. This work presents an alternative protocol with improved behavior and performance. The Priority Oriented Hybrid Access (POHA) is a complete channel access mechanism able to provide integrated QoS for all types of traffic and network applications. POHA combines a polling based and a TDMA access scheme, adapts to the dynamic conditions of modern WLANs, improves channel utilization and station feedback, provides medium contention fairness, eliminates collisions, differentiates traffic based on priorities, supports dynamic resource assignment, and instantly negotiates the quality levels of the offered traffic streams trying to support multiple streams with best possible quality. POHA, compared with HCF, exhibits generally superior performance.
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Teng, Yu, and Nan Kong. "Assessing Multi-Site Distributed Coordination in Dynamic Assignment of Time-Critical Entity via Agent-Based Simulation." In Advances in Civil and Industrial Engineering, 58–72. IGI Global, 2013. http://dx.doi.org/10.4018/978-1-4666-2098-8.ch004.

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This chapter investigates distributed coordination in dynamic assignment of time-critical entities among multiple sites. The authors develop an agent-based simulation model in which each agent applies some adaptive assignment rule to match supplies and demands that are generated at its own site. They assume each agent has autonomy to design its hierarchical assignment rule and update it based on periodical review of its assignment performance. The authors model the benefit of each assignment based on the life spans of the resource and the need, and a distance measure between them. They consider two distinct centralized initial assignment rules and assess how agents update their rules. The authors also evaluate the impact of different agent environments, numbers of supply/demand agents, and ratios of supply/demand rates.
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Harding, Gregory L., and Anne V. D. M. Kayem. "Design of an IPTV Conditional Access System Supporting Multiple-Services." In Information Security in Diverse Computing Environments, 59–98. IGI Global, 2014. http://dx.doi.org/10.4018/978-1-4666-6158-5.ch005.

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Conditional Access (CA) is typically used by pay-television operators to restrict access to content to authorized subscribers. While several commercial CA solutions exist for structured broadcasting, Internet-based television, and video-on-demand services, these solutions are mostly proprietary. Use of proprietary solutions incurs royalty payments and increased cost of components for Set-Top-Box manufacturers. In many developing countries Set-Top-Boxes for the migration to Digital Television will be subsidized by government. An efficient, flexible, and open conditional system that does not incur royalties or require specialised security hardware would be beneficial for these countries. In this chapter, the authors explore conditional access solutions that draw on the area of cryptographic key management and distribution for IPTV environments. They wrap up with propositions on how an open Cryptographic Access Control (CAC) system can be implemented practically by pay-television operators who have to handle a large number of subscriptions.
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Conference papers on the topic "Demand assignment multiple access"

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Takada, Hellinton Hatsuo, and Alessandro Anzaloni. "On Bandwidth Allocation for Demand-Assignment Multiple Access Systems." In 2006 International Conference on Communication Technology. IEEE, 2006. http://dx.doi.org/10.1109/icct.2006.341950.

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Yuanbo, Xin, Zhou Xi, She Yang, and Jiang Yuan. "Improved Burst Target Demand Assignment Multiple Access (BTDAMA) for GEO Satellite Networks." In 2011 International Conference on Network Computing and Information Security (NCIS). IEEE, 2011. http://dx.doi.org/10.1109/ncis.2011.133.

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Leahy, Peter. "PC based Design Tools for a UHF Demand Assignment Multiple Access SATCOM System." In 1987 IEEE Military Communications Conference - Crisis Communications: The Promise and Reality. IEEE, 1987. http://dx.doi.org/10.1109/milcom.1987.4795208.

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Gorma, Wael Mohamed, and Paul Daniel Mitchell. "Performance of the combined free/demand assignment multiple access protocol via underwater networks." In WUWNET'17: International Conference on Underwater Networks & Systems. New York, NY, USA: ACM, 2017. http://dx.doi.org/10.1145/3148675.3148678.

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Kouroshnezhad, Sahar, Saadan Zokaei, Hassan Yeganeh, and Mohammad SayadHaghighi. "Slot Reservation Demand Assignment Multiple Access Control Protocol For Signalling Of Telephony Traffic Via Geo Satellite." In 2008 10th International Conference on Advanced Communication Technology. IEEE, 2008. http://dx.doi.org/10.1109/icact.2008.4493855.

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Feighery, Patrick, Keith Scott, and Deborah Goldsmith. "Using flow control to improve performance of Demand-Assignment Multiple Access systems with performance enhancing proxies." In MILCOM 2009 - 2009 IEEE Military Communications Conference. IEEE, 2009. http://dx.doi.org/10.1109/milcom.2009.5379828.

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Doyle, G., C. Pitts, and C. Eslinger. "A demand assigned multiple access (DAMA) prototype implementation." In Proceedings of MILCOM '94. IEEE, 1994. http://dx.doi.org/10.1109/milcom.1994.473970.

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Kuang, A. W., and Z. X. Huang. "Stochastic User Equilibrium Traffic Assignment with Multiple User Classes and Elastic Demand." In 2010 International Conference on Intelligent Computation Technology and Automation (ICICTA). IEEE, 2010. http://dx.doi.org/10.1109/icicta.2010.326.

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Kaspar, Dominik, Kristian Evensen, Paal Engelstad, Audun F. Hansen, På l. Halvorsen, and Carsten Griwodz. "Enhancing Video-on-Demand Playout over Multiple Heterogeneous Access Networks." In 2010 7th IEEE Consumer Communications and Networking Conference (CCNC). IEEE, 2010. http://dx.doi.org/10.1109/ccnc.2010.5421846.

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Feighery, Patrick, Keith Scott, and Deborah Goldsmith. "Using Performance Enhancing Proxies with Demand Assigned Multiple Access systems." In MILCOM 2008 - 2008 IEEE Military Communications Conference (MILCOM). IEEE, 2008. http://dx.doi.org/10.1109/milcom.2008.4753379.

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