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中文摘要：
提出了一种基于预约调度的用于无线传感器网络的MAC协议——SSMAC。该协议采用分布式竞争接入和预约调度发送,提供高能量效率的信道接入和支持QoS业务的传输,较好地解决了隐藏终端和暴露终端问题。仿真结果表明SSMAC协议在保持节能的同时,在降低媒体接入时延、提高报文投递成功率和提供QoS保障上较TRAMA协议性能有很大的提高。
英文摘要：
The paper proposed a schedule-based sensor MAC protocol （SSMAC） for wireless sensor networks. The protocol was distributed contention-based access and schedule-based transmission. It could provide energy-efficient channel access, support quality-of-service （QoS） and solve the hidden-and exposed-terminal problems much better. Simulations show that the new protocol which can also save energy has better performance in decreasing medium access delay, increasing packet delivery ratio and supporting QoS than TRAMA protocol.
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