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A prioritized medium access control (PMAC) protocol is proposed for wireless sensor networks, based on a binary count down approach. PMAC effectively eliminates data collision and optimizes channel allocation. Moreover, as many networks nowadays compose traffic with several priorities, the simple yet effective design of PMAC offers strict service differentiation for prioritized packets. In this paper,...
Data transmission in self-organized multi-hop networks heavily depends on the cooperation among nodes. In many applications, however, the autonomous nodes exhibit selfish behaviors, aiming to optimize their own performance without consideration of other nodes in the network. Although a selfish node is interested in transmitting its own data only, part of its resource has to be traded for the cooperation...
An enhanced synchronized medium access protocol, named ES-MAC, for wireless ad hoc networks is proposed in this paper. ES-MAC employs a binary-countdown scheme to resolve contentions between wireless stations. Multiple contention periods and hidden station elimination periods are adopted to increase the throughput and channel utilization of the system. Our simulation and analysis show that ES-MAC...
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