Capture effects in opportunistic slotted ALOHA over rayleigh fading channels

Xiaoyu Hu, Yu Dong Yao

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

Abstract

This paper studies the throughput, average packet delay and average power consumption for opportunistic slotted ALOHA (OS-ALOHA) in Rayleigh fading channels. The basic idea of the opportunistic transmission is to control the transmission probability of each user based on the channel quality. If the channel is good, a user transmits the packet; otherwise it holds the packet. A finite state Markov chain (FSMC) channel is modeled and the capture effect is considered in this paper. The channel fading is assumed to be correlated from slot to slot and channel state transition is incorporated into the analysis of system performance. The system performance for OS-ALOHA is investigated considering packet traffic statistics. Compared to conventional slotted ALOHA, OS-ALOHA systems show a higher throughput, smaller average delay and higher power efficiency.

Original languageEnglish
Title of host publication2008 IEEE Global Telecommunications Conference, GLOBECOM 2008
Pages3892-3896
Number of pages5
DOIs
StatePublished - 2008
Event2008 IEEE Global Telecommunications Conference, GLOBECOM 2008 - New Orleans, LA, United States
Duration: 30 Nov 20084 Dec 2008

Publication series

NameGLOBECOM - IEEE Global Telecommunications Conference

Conference

Conference2008 IEEE Global Telecommunications Conference, GLOBECOM 2008
Country/TerritoryUnited States
CityNew Orleans, LA
Period30/11/084/12/08

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