Optimal Channel Assignment in Multi-Hop Cellular Networks

Wireless networks have made great gains in usability and popularity. However, inherent limitations on cell capacity and coverage still exist. There are also dead-spots and hotspots problems in these networks. Ad hoc multi-hop relaying enhances cell capacity and coverage, alleviates the dead-spots pr...

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Bibliographic Details
Published inIEEE GLOBECOM 2007 - IEEE Global Telecommunications Conference pp. 731 - 735
Main Authors Tam, Y.H., Benkoczi, R., Hassanein, H.S., Akl, S.G.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.11.2007
Subjects
Base stations
Delay effects
Delay estimation
Directional antennas
Land mobile radio cellular systems
Multiaccess communication
Network topology
Performance gain
Relays
Spread spectrum communication
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Summary:Wireless networks have made great gains in usability and popularity. However, inherent limitations on cell capacity and coverage still exist. There are also dead-spots and hotspots problems in these networks. Ad hoc multi-hop relaying enhances cell capacity and coverage, alleviates the dead-spots problem, and helps to ease congestion in hotspots. However, multi-hopping also increases packet delay. Effective channel assignment is key to reducing delay. Existing channel assignment schemes are heuristics and may not guarantee optimal solutions in terms of minimum delay. In this paper, we provide an optimal channel assignment (OCA) scheme for ad hoc TDD W-CDMA multi-hop cellular networks (MCN) to minimize packet delay. OCA can also be used as an un-biased tool for the comparison among different network topologies, network densities, and protocols. To the best of our knowledge, this is the first time that a minimum delay optimal channel assignment is proposed in a multi-hop cellular environment.
ISBN:1424410428
9781424410422
ISSN:1930-529X
2576-764X
DOI:10.1109/GLOCOM.2007.142