Quality-Aware Directional MAC Protocol for Multi-Channel Wireless Sensor Networks
Fernaz Narin Nur, Selina Sharmin, Md. Abdur Razzaque, Md. Shariful Islam · 2017
Synchronizing transmission and reception opportunities for different sender-receiver pairs and providing traffic priority aware access to different channels are challenging problems in Directional Sensor Networks (DSNs). We propose a quality aware multi-channel medium access control protocol, Q-DMAC for DSNs that increases reusability of multi-channel resources using nodes with directional antennas. The Q-DMAC nodes gives high priority access to the medium for nodes having important data packets and allocate more slots in a data window for nodes having larger number of packets awaiting for transmission. Finally, the simulation results show that our proposed Q-DMAC results improved network performance in terms of throughput, end-to-end delay, network lifetime.