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在ZigBee无线网络中，为实现中继节点的休眠和唤醒功能，并达到降低系统功耗的目的，提出了一种新的时间同步算法。该算法利用模拟开关和RTC模块的中断信号控制主控模块的供电，使路由设备进入超低功耗运行状态；同时采用IEEE 1588的精确时钟同步协议PTP完成MAC层的时钟同步，减少了同步算法协议层间损耗，解决了传统时间同步算法精度不高的问题。试验表明，改进后同步算法的同步精度达到+50μs，系统运...
Supporting Information for the Paper: Optimal Ternary Constant-Composition Codes of Weight Four and Distance Five, IEEE Trans. Inform. Theory, To Appear
Supporting Information for the Paper Optimal Ternary Constant-Composition Codes of Weight Four Distance Five
2011/1/17
Supporting Information for the Paper: Optimal Ternary Constant-Composition Codes of Weight Four and Distance Five, IEEE Trans. Inform. Theory, To Appear. 
Performance assessment of IEEE 802.11e EDCF using three-dimension Markov chain model
WLAN EDCA CW AIFS Three-dimension Markov Chain
2010/9/10
The new standard IEEE 802.11e is specified to support quality-ofservice in wireless local area networks (WLAN). Recent research related to the Enhanced distributed channel access (EDCA) performance is...