Delay Analysis of Multichannel Opportunistic Spectrum Access MAC Protocols
Abstract— Delay Analysis of Multichannel Opportunistic Spectrum Access MAC Protocols. A comprehensive delay and queueing analysis for two baseline medium access control protocols for multi-user cognitive radio networks with homogeneous users and channels and investigate the impact of different network parameters on the system performance. < Final Year Projects 2016 > In addition to an accurate Markov chain, which follows the queue status of all users, several lower complexity queueing theory approximations are provided. Accuracy and performance of the proposed analytical approximations are veriﬁed with extensive simulations. It is observed that using an Aloha-type access to the control channel, a buffering MAC protocol, where in case of interruption the CR user waits for the primary user to vacate the channel before resuming the transmission.