Wired/Wireless Internet Communications

Bandwidth and battery power are key constraints for efficient and continuous operation of mobile computers. Power consumption during data transmitting and receiving significantly depends on the MAC protocol of wireless networks. This paper presents a channel efficient and power conserving protocol, named PC-DST, to enhance IEEE 802.11 DCF. PC-DST improves wireless channel throughput and saves huge amount of energy consumption. We illustrate PC-DST advantages via extensive simulation performed over wireless LAN. The results of simulation show that significant enhancements on frame goodput, frame delivery latency, and wireless channel efficiency are obtained. Moreover, PC-DST conserves more than 70% energy consumed in IEEE 802.11 DCF operation.

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