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无线异构网络中终端的能耗分析模型

DOI: 10.13190/jbupt.200704.78.jiangjf, PP. 78-82

Keywords: 无线数据通信,无线异构网络,能耗分析,半马尔科夫链

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Abstract:

为了对无线异构网络中多模终端的能耗分析问题进行研究,通过考察终端的工作机理,利用半马尔科夫链描述终端的通信状态,从而得到终端的能耗分析方程.相比已有的工作,提出的模型更全面地考虑了终端的工作状态,还考虑了终端发现wirelesslocalareanetwork(WLAN)的概率和业务类别等因素的影响.分析结果表明,终端能耗随呼叫到达强度和呼叫持续时间增大而增大;终端能耗与话音业务的比例和发现WLAN的概率均成近似线性关系;使WLAN模块进入低能耗的等待状态并不会节省终端能耗.

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