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Vu Van Huynh Graduate School, Kookmin University 2012 국내석사
Data packets with multi-levels are become one of the most important issues in the indoor environments. To meet the priority MAC protocol for supporting differentiated service applications, we propose a mechanism to support priority MAC based on multi-parameters for IEEE 802.15.7 visible light communication (VLC). Multi-parameters mechanism use four parameters, such as number of backoff times (NB), backoff exponent (BE), contention window (CW), and number of retransmission times (RT) to support the differentiated service applications. We consider beacon-enabled VLC personal area network (VPAN) mode with slotted version for random access algorithm in this thesis. Based on a discrete-time Markov chain, we analyze the performance of proposed mechanism under non-saturation environments. The effect of the proposed mechanism on the throughput, delay and reliability is explored herein. The analytical and simulation results show that our scheme can properly support multi-levels priority in VPAN.