Medium Access Control and Power Optimizations for Sensor Networks with Linear Receivers
نویسندگان
چکیده
We consider the uplink reachback problem in sensor networks where the receiver is equipped with multiple antennas and linear multiuser detectors. Three medium access control (MAC) schemes are analyzed: round-robin, maximumthroughput scheduling and slotted ALOHA. We optimize the average number of transmissions per slot and the transmission power for two purposes: maximizing the throughput, or minimizing the effective energy (the average energy consumption per successfully received packet) subject to a throughput constraint. By comparing the optimal performance of different MAC schemes equipped with different detectors, we draw important tradeoffs involved in the sensor network design.
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تاریخ انتشار 2005