Utilizing beamforming for random access - A cross-layer paradigm

Yu Dong Yao, Mubashir Syed, Jin Yu

Research output: Contribution to journalConference articlepeer-review

2 Scopus citations

Abstract

Adaptive beamforming has been shown to sub-stantially improve the performance of a slotted Aloha packet radio system. In this paper we present a slotted Aloha based random access protocol designed to be employed in conjunction with adaptive beamforming, for use in a sectorized wireless system. The focus is on a cross-layer design approach, in which information about the status of packet transmissions is utilized to dynamically adapt antenna beams among the sectors in a cell. This scheme is especially robust against the network inefficiencies due to uneven and time-varying traffic load densities within the sectors of a cell. Simulation results demonstrate the substantial enhancement in throughput and delay performance due to the proposed scheme.

Original languageEnglish
Pages (from-to)5160-5164
Number of pages5
JournalIEEE Vehicular Technology Conference
Volume60
Issue number7
StatePublished - 2004
Event2004 IEEE 60th Vehicular Technology Conference, VTC2004-Fall: Wireless Technologies for Global Security - Los Angeles, CA, United States
Duration: 26 Sep 200429 Sep 2004

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