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针对移动环境下分发内容的高能耗问题,本文提出基于联盟博弈理论研究能量感知的协同内容分发策略.当多个移动终端请求从基站/访问点下载共同所需内容时,每个移动终端通过选择加入或离开参与博弈而动态构建联盟,每个联盟的移动终端相互协同共享内容.文中引入能效函数表示移动终端在联盟内获取和分发内容的能耗状况,以实现各移动终端之间的能耗均衡;构建与信道状况相关联的能耗模型以节省移动终端的传输能耗.仿真实验比较本文提出的内容分发策略与其他两种内容分发策略,给出不同策略下的平均能耗和能耗均衡性结果.多种对比结果表明本文的内容分发策略具有较好的节能效果和能耗均衡性.
In order to solve the problem of high energy consumption of distributed content in mobile environment, this paper proposes a collaborative content distribution strategy based on the coalition game theory to study energy perception. When multiple mobile terminals request to download common content from base station / access point, each mobile terminal selects Join or leave the game to dynamically build alliances, and the mobile terminals of each alliance cooperate to share the content with each other.The introduction of energy efficiency function in the text indicates the energy consumption of the mobile terminal to obtain and distribute the content in the federation in order to achieve the energy consumption among the mobile terminals And builds the energy consumption model associated with the channel condition to save the transmission energy consumption of the mobile terminal.The simulation experiment compares the content distribution strategy proposed in this paper with the other two content distribution strategies and gives the average energy consumption and energy consumption under different strategies Balanced results. A variety of comparative results show that the content distribution strategy in this paper has a good energy-saving effect and energy consumption balance.