Joint backoff control in time and frequency for multichannel wireless systems and its Markov model for analysis
Date
2011
Authors
Lee, H.
Lim, C.
Choi, J.
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Journal article
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Discrete and Continuous Dynamical Systems Series B: a journal bridging mathematics and sciences, 2011; 16(4 Sp Iss):1083-1099
Statement of Responsibility
Hyukjin Lee, Cheng-Chew Lim, Jinho Choi
Conference Name
Abstract
A new joint random access scheme is proposed to enable effective uplink access when users are partially aware of channel conditions in multichannel wireless systems. The proposed scheme mitigates packet collisions with joint backoff control in the time and frequency domains, cooperating with a sensing method that exploits the channel conditions. The performance analysis of the joint access scheme is facilitated by a Markov model that provides a closed-form throughput expression. Simulation results show that this channel access scheme, working together with a simple sensing method, offers significant improvements to system throughput.
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© American Institute of Mathematical Sciences 2010.