Residual white space distribution-based opportunistic channel access for cognitive radio enabled devices

Authors:
Manuj Sharma;Anirudha Sahoo
Affiliations:
Indian Institute of Technology Bombay, Mumbai, India;Indian Institute of Technology Bombay, Mumbai, India
Venue:
Proceedings of the ACM SIGCOMM 2010 conference
Year:
2010

Citing 2
Cited 0

Probability and statistics with reliability, queuing and computer science applications

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Measurement based capacity scavenging via whitespace modeling in wireless networks

GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications

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Abstract

We describe an opportunistic channel access scheme for cognitive radio-enabled secondary nodes (SNs). The proposed scheme uses the residual channel idle time distribution to estimate the transmission duration in the remaining idle time, subject to an acceptable Primary User (PU) interference constraint. The SN then transmits the frames within the estimated duration without further sensing the channel, which reduces sensing overhead. The scheme does not require the SN to continuously sense the channel to keep track of the start of the idle period, thereby conserving energy.