Slotted Aloha in a cognitive radio environment with capture effects

Zhuo Yang, Yu Dong Yao, Di Zheng

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

Abstract

Slotted Aloha is an effective random access protocol and can also be an important element of more advanced media access protocols. This paper investigates slotted Aloha in a cognitive radio environment where one access point provides services for both primary users and secondary users. Considering packet capture effects in a rayleigh fading channel, we present the mathematic derivations of system throughput and average delay for primary users and secondary users. In order to minimize the interference from secondary users to primary users, higher transmission power levels are assumed for primary users.

Original languageEnglish
Title of host publicationWOCC 2009 - 18th Annual Wireless and Optical Communications Conference
DOIs
StatePublished - 2009
EventWOCC 2009 - 18th Annual Wireless and Optical Communications Conference - Newark, NJ, United States
Duration: 1 May 20092 May 2009

Publication series

NameWOCC 2009 - 18th Annual Wireless and Optical Communications Conference

Conference

ConferenceWOCC 2009 - 18th Annual Wireless and Optical Communications Conference
Country/TerritoryUnited States
CityNewark, NJ
Period1/05/092/05/09

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