An adaptive dual-rate random access scheme

Ruifeng Zhang, Lei Zhou, Yu Dong Yao

Research output: Contribution to conferencePaperpeer-review

Abstract

We propose a random access scheme with reduced rate retransmissions. The scheme is based on the standard slotted Aloha protocol; but if a collision happens, the colliding and thus corrupted packets is shrinked in size for retransmissions. The size shrinking can be achieved using the widely available multirate scalable source coding techniques. The channel slot splits into minislots and the shrinked packets are transmitted at one randomly chosen minislot. This dual-rate scheme allows significantly higher packet throughput while keeping a decent bit throughput, which is proved both analytically and numerically in this paper.

Original languageEnglish
Pages766-770
Number of pages5
DOIs
StatePublished - 2005
Event2005 IEEE 6th Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2005 - New York, NY, United States
Duration: 5 Jun 20058 Jun 2005

Conference

Conference2005 IEEE 6th Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2005
Country/TerritoryUnited States
CityNew York, NY
Period5/06/058/06/05

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