Al-Zubi, Raed T and Krunz, Marwan and Lopes, Leo (2010) Resource utilization mechanism for multi-rate ultrawide band networks. In: The 53rd IEEE Global Communications Conference (IEEE GLOBECOM 2010) – Wireless Networking Symposium, 6-10 December 2010, Miami, Florida, USA.
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Ultra-wideband (UWB) communications has emerged as a burgeoning technology for high data rate wireless personal area networks (WPANs). In this paper, we propose a novel resource utilization mechanism (RUM) for improving the throughput in multi-rate UWB-based WPANs. RUM is intended to remedy a critical issue in both unicast and multicast transmissions. In unicast (single- and multi-hop), the connectivity of a source-destination pair is deﬁned by the ability to overhear control messages (e.g., route requests, request-to-send/clear-tosend, etc.). These messages are usually sent at a low transmission rate to extend their reachability, hence a node can directly communicate with faraway destinations. Such destinations cannot be reliably reached by high transmission rates. This leads to a long channel reservation time and hence a high blocking probability for prospective reservations and low network throughput. In the case of multicast, the maximum transmission rate is bottlenecked by the farthest destination. RUM exploits opportunistic-relaying and time-spreading techniques to improve link reliability and increase the transmission rate, and hence network throughput. Simulations are used to demonstrate the performance gain of RUM.
|Item Type:||Conference or Workshop Papers (Paper)|
|Subjects:||Q Science > Q Science (General)
Q Science > QA Mathematics > QA75 Electronic computers. Computer science
T Technology > T Technology (General)
T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TK Electrical engineering. Electronics Nuclear engineering
|Divisions:||Faculty of Engineering, Science and Mathematics > School of Electronics and Computer Science|
|Depositing User:||Acosta Angel|
|Date Deposited:||14 Feb 2012 13:51|
|Last Modified:||03 Dec 2014 12:16|
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