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VoIP capacity analysis in cognitive radio system

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2 Author(s)
Howon Lee ; KAIST, Daejeon ; Dong-Ho Cho

In this letter, we analyze a voice over IP (VoIP) capacity in a cognitive radio system. We formulate the system as a two-dimensional discrete time Markov chain (DTMC). The VoIP traffic and wireless channel in the cognitive radio system are described as a Markov modulated Poisson process (MMPP) model and a Markov channel model, respectively. We demonstrate various numerical and simulation results, such as packet dropping probability and VoIP capacity.

Published in:

Communications Letters, IEEE  (Volume:13 ,  Issue: 6 )