Research Article
Fast reservation list-to-send MAC protocol in wireless networks
@INPROCEEDINGS{10.4108/chinacom.2010.10, author={Yayan Li and Kai Liu}, title={Fast reservation list-to-send MAC protocol in wireless networks}, proceedings={5th International ICST Conference on Communications and Networking in China}, publisher={IEEE}, proceedings_a={CHINACOM}, year={2011}, month={1}, keywords={wireless network medium access control reservation collision-free transmission long propagation delay}, doi={10.4108/chinacom.2010.10} }- Yayan Li
Kai Liu
Year: 2011
Fast reservation list-to-send MAC protocol in wireless networks
CHINACOM
ICST
DOI: 10.4108/chinacom.2010.10
Abstract
Fast reservation list-to-send (FRLS) medium access control (MAC) protocol is proposed to apply to wireless networks with long propagation delay. In the protocol, a central control node (CCN) is applied to allocate the channel resources of two channels, and all the nodes transmit packets over the two channels without collision. Packet train transmission mechanism ensures that a number of packets are transmitted continuously with small guard interval and just a one-way propagation delay. Once a node successfully reserves the channel resources for a communication session, it can transmit the whole message without the need of any other reservations, which gain high utilization of the channels. Moreover, CCN can provide uniform time benchmark to make the network working in an asynchronous fashion. Simulation results show that FRLS protocol outperforms centralized scheduling-based MAC (CSMAC) protocol in terms of throughput, average packet access delay and average packet dropping rate, and effectively resolves low channel utilization problem due to long propagation delay.