Random access channel with retransmission gain

Junmin Shi, Yi Sun

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper analyzes the maximum steady throughput and optimum media access control (MAC) of a random access system over channels with retransmission gain. The channel is defined by the packet detection probability of each user as a function of the numbers of packet transmissions and collisions. The maximum steady throughput and stability region for two-user channels are obtained in closed form. The conditions that the maximum throughput is reached with control-free MAC are obtained. The well-known results of the orthogonal and the ALOHA channels are shown to be special instances of our results. The throughputs of multiuser symmetric channels and the general multiuser asymmetric channel are further obtained. A practical random access CDMA channel exploiting retransmission diversity is analyzed based on the model. Numerical result confirms with the analytical results. It is conclude that retransmission gain can significantly increase throughput and expand stability region.

Original languageEnglish (US)
Title of host publicationForty-first Annual Conference on Information Sciences and Systems, CISS 2007 - Proceedings
Pages585-590
Number of pages6
DOIs
StatePublished - Dec 1 2007
Externally publishedYes
Event41st Annual Conference on Information Sciences and Systems, CISS 2007 - Baltimore, MD, United States
Duration: Mar 14 2007Mar 16 2007

Publication series

NameForty-first Annual Conference on Information Sciences and Systems, CISS 2007 - Proceedings

Other

Other41st Annual Conference on Information Sciences and Systems, CISS 2007
CountryUnited States
CityBaltimore, MD
Period3/14/073/16/07

All Science Journal Classification (ASJC) codes

  • Computer Science(all)

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