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Tìm thấy 19+ kết quả cho từ khóa "wireless networks"

Congestion control of Wavelet image compression over wireless networks

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In this paper, we use fuzzy logic techniques to develop a new queue management scheme in hop by hop wireless networks. The application of fuzzy control in networks is suitable due to the difficulties in obtaining a precise mathematical model while intutive understanding of congestion control is available. In section III, we briefly review some properties of fuzzy logic controller and present our congestion control scheme.

Multimedia Traffic over Wireless and Satellite Networks

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The growing and the emergence of communication infrastructures, like the Internet and wireless networks, enabled the proliferation of the above mentioned multimedia applications (music download to a portable device, watching TV through the Internet on a laptop, viewing movie trailers posted on the web through a wireless link). If a video packet does not arrive before its “playout time”, the packet is effectively lost.

Nghiên cứu cải tiến chất lượng dịch vụ cho mạng ad hoc đa chặng

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Saadawi, “Does the IEEE 802.11 MAC Protocol Work Well in Multihop Wireless Ad Hoc Networks. Gupta, “ECS: An Enhanced Carrier Sensing Mechanism for Wireless Ad-hoc Networks,” Computer Communication, vol. Zhang, “Achieving Per-Flow Fairness in Wireless Ad Hoc Networks,” Elec. Matsumoto, “Scheduling Algorithm for Fairness Improvement among Subscribers in Multihop Wireless Networks,” Elec. Kumar, “The capacity of wireless networks,” IEEE Transactions on Information Theory, vol.

Mã hóa mạng trong hệ thống mạng hợp tác chuyển tiếp (Network Coding on Cooperative Relay Netwoks)

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Tse., “Cooperative diversity in wireless networks: Efficient pro- tocols and outage behavior,” IEEE Trans. Chung, “Outage probability analysis of co- operative diversity df relaying under rayleigh fading,” in Proc. Zhang, “Capacity bounds and power allocation for the wireless relay channel,” IEEE Trans. Wang, “Network coding in cooperative relay networks,” in Proc.

Đề xuất các thuật toán định tuyến đem lại hiệu quả năng lượng trong mạng cảm biến không dây

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Agrawal, TEEN: A Protocol for Enhanced Efficiency in Wireless Sensor Networks, in the Proceedings of the 1st International Workshop on Parallel and Distributed Computing Issues in Wireless Networks and Mobile Computing, San Francisco, CA, April 2001.. A Survey on Routing Protocols for Wireless Sensor Networks. Ad Hoc Net. Maximum Lifetime Tree Construction for Wireless Sensor Networks.

Nghiên cứu cải thiện hiệu năng giao thức SCTP trong mạng MANET

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Ad Hoc Wireless Networks: architectures and protocols, chapter Ad Hoc Wireless Networks. Wireless Ad hoc and Sensor Networks, chapter Ad Hoc Networks:. Performance analysis of wireless ad hoc networks, pages 83–101. Performance Enhancement of TFRC in Wireless Ad Hoc Networks. Improving Transport Layer Performance in Multihop Ad Hoc Networks by Exploiting MAC Layer Information. Contention-based Congestion Control in Wireless Ad hoc Networks

Chống tấn công gây nghẽn mạng cảm biến không dây

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Konstantopoulos, Defending Wireless Sensor Networks From Jamming Attacks. http://www.sunspotworld.com/. Haapola, Uwb wireless sensor networks: Uwen- a practical example. Manoj., Transport Layer and Security Protocols for Ad Hoc Wireless Networks. in Ad Hoc Wireless Networks: Architectures and Protocols. Ramanathan, On the Performance of Ad Hoc Networks With Beamforming Antennas.

Nghiên cứu đề xuất phương pháp tăng hiệu năng cho các ứng dụng multicast trong mạng mesh không dây

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Srikant, “A Tutorial on Cross-Layer Optimization in Wireless Networks,” IEEE Journal on Selected Areas in Communications on ". [16] Jun Yuan, Zongpeng Li, Wei Yu, Baochun Li, “A Cross-Layer Optimization Framework for Multihop Multicast in Wireless Mesh Networks,” in IEEE Journal on Selected Areas in Communicatoins (JSAC November 2006.. Iannone, S.Fdida, “MRS: A Simple Cross-Layer Heuristic to Improve Throughput Capacity in Wireless Mesh Networks,” In proceedings of Conext 2005 Conference..

Mã hóa mạng không dây sử dụng giao thức ALOHA

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Banerjee (2007), “An analysis of wireless network coding for unicast sessions: the case for coding-aware routing”, IEEE INFOCOM, pp. Gong (2008), “TCP performance in coded wireless mesh networks”, IEEE SECON, pp. Gitman (1975), “On the capacity of slotted ALOHA networks and some design problems”, IEEE Trans. Medard (2007), “Network coding in wireless networks with random access”, IEEE Trans.

Định tuyến đa phát dựa trên bảo trì tối ưu cây khung trong các mạng tự hợp di động

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Chlamtac,M.Conti,J.Liu, Mobile ad hoc networking: imperatives and challenges, Ad- Hoc Networks Journal 1 (Inaugural Issue . Toh, Ad Hoc Mobile Wireless Networks: Protocols andSystems, Prentice-Hall, Englewood Cliffs, NJ, USA, 2002.. Perkins, Ad-Hoc Networking, Addison-Wesley, Reading, Mass, USA, 2000.. Manoj, Ad Hoc Wireless Networks: Architectures and Protocols, Prentice-Hall, Upper Saddle River, NJ, USA, 2004..

Nghiên cứu hạ tầng khóa công khai và triển khai trong mạng không dây AD-HOC

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Lu (2000) “Ubiquitous and Robust Authentication Services for Ad Hoc Wireless Networks”, Technical Report 200030,. Zhang (2001), “Providing Robust and Ubiquitous Security Support for Mobile Ad-Hoc Networks”, IEEE ICNP. Zhang (2002), “Self-securing Ad Hoc Wireless Networks”, IEEE ISCC. Capkun (2001), “The Quest for Security in Mobile Ad Hoc Networks”, ACM. Chi Wong (2002), “Talking To Strangers Authentication in Ad-Hoc Wireless Networks”, Internet Society 21.

Giao thức MAC điều khiển công suất trong mạng AD-HOC

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Martinus Dipobagio Institute of Computer Science (ICS), Freie Universität Berlin, An Overview on Ad Hoc Networks. Vaidya, A Power Control MAC Protocol for Ad Hoc Networks, in MOBICOM 2002, Sep, 2002. Distributed Power Control in Ad-hoc Wireless Networks, Proc. Fang Liu, Kai Xing, Xiuzhen Cheng, Shmuel Rotenstreich Department of Computer Science The George Washington University Washington, Energy-efficient MAC layer protocols in ad hoc networks, DC 2005.

Performance Analysis of Network-MIMO Systems

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This thesis investigated the ability of network MIMO techniques to increase data rates in multi-user indoor wireless networks of various sizes with various channel schemes. However, due to the small-scale simulation environment, we cannot evaluate the potential of Network-MIMO in data rates increase. of the 4th Intern.

Nghiên cứu các chiến lược đảm bảo chất lượng dịch vụ (QoS) trong các mạng không dây

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, Matthew Sherman, “Quality of Service (QoS) in IEEE 802.11 Wireless Local Area Networks: Evaluation of Distributed Coordination Function (DCF) and Point Coordination Function (PCF)”.. 802.11, Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications, 1997.. [6] Matthew Gast, “802.11 Wireless Networks: The Definitive Guide”, O'Reilly, 4-2002.. [7] Pablo Brenner, “A Technical Tutorial on the IEEE 802.11 Protocol”, 1997. [10] Hongqiang Zhai, Xiang Chen, Yuguang Fang,

Chuyển giao cứng trong thông tin di động khi xét đến trễ

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Jabbari, “A measurement-based prioritization scheme for handovers in mobile cellular networks”, IEEE J. Fukuda, “Performance analysis of mobile cellular radio systems with priority reservation handoff procedures”, Proc. IEEE VTC ’94, Vol. Wells, “Cellular system design using the expansion cell layout method”, IEEE Trans. Agrawal, “Performance analysis of a handoff scheme in integrated voice/data wireless networks”, Proc. IEEE VTC ’89,1989, pp.

Định tuyến đa phát dựa trên bảo trì tối ưu cây khung trong các mạng tự hợp di động

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Chlamtac,M.Conti,J.Liu, Mobile ad hoc networking: imperatives and challenges, Ad-Hoc Networks Journal 1 (Inaugural Issue . Toh, Ad Hoc Mobile Wireless Networks: Protocols andSystems, Prentice- Hall, Englewood Cliff s, NJ, USA, 2002.. Perkins, Ad-Hoc Networking, Addison-Wesley, Reading, Mass, USA, 2000.. Manoj, Ad Hoc Wireless Networks: Architectures and Protocols, Prentice-Hall, Upper Saddle River, NJ, USA, 2004..

OECD Communications Outlook 2009

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Major public telecommunication operators and Internet service providers in the OECD area (fiscal year 2007 unless noted) Units USD millions. providers in the OECD area (fiscal year 2007 unless noted). line to wireless networks, resulting in a decline in the number of fixed-line subscribers over the last several years. Chapter 4 examines developments in the fixed-line market.. In the United Kingdom, MVNOs have a market share in the region of 4%..

Điều khiển tối ưu cấu hình trong mạng vô tuyến AD HOC – SENSOR

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Wireless Networks 10, 43–554. [10] Bose P, Morin P, Stojmenovic I and Urrutia J 2001 Routing with guaranteed delivery in ad hoc wireless networks.