Resource utilization mechanism for multi-rate ultra-wide band networks

Raed Al-Zubi, Marwan Krunz, Leonardo Lopes

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review

3 Citations (Scopus)


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 overhead control messages (e.g., route requests, request-to-send/clear-to-send, 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.
Original languageEnglish
Title of host publicationProceedings of IEEE GLOBECOM 2010
EditorsHaohong Wang
Place of PublicationAtlanta USA
PublisherIEEE, Institute of Electrical and Electronics Engineers
Pages1 - 5
Number of pages5
Publication statusPublished - 2010
EventIEEE Global Telecommunications Conference 2010 - Miami, United States of America
Duration: 6 Dec 201010 Dec 2010
Conference number: 53 (Proceedings)


ConferenceIEEE Global Telecommunications Conference 2010
Abbreviated titleIEEE GLOBECOM 2010
Country/TerritoryUnited States of America
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