基于能效的网络体系结构及资源分配方法研究

项目名称： 基于能效的网络体系结构及资源分配方法研究

项目编号： No.61471115

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 无线电电子学、电信技术

项目作者： 衡伟

作者单位： 东南大学

项目金额： 82万元

中文摘要： 针对单小区多用户和多小区多用户场景，研究基于能效的网络体系结构及资源分配方法，以解决当前无线通信中按业务峰值容量需求配置系统资源的传统方式给频谱资源、能耗造成极大浪费的难题。运用协作博弈论，提出基于能效的协作中继网络资源分配算法，通过引入单位能量、能量均衡率等参数，将网络能耗均衡、网络覆盖率等因素进行综合考虑；研究分布式天线系统的能效优化问题，综合考虑用户最小速率请求、发送天线最大功率约束等条件，结合实际功率模型，建立能效优化效用函数，提出行之有效的优化问题解决方案；探索基站休眠机制，根据基站发送功率、用户速率等建立网络模型，提出休眠小区用户接入周围活跃小区的低复杂度算法；对于多小区协作技术中动态簇对系统能效的影响开展深入研究，建立基于能效的低复杂度自适应动态簇协作机制。通过深入的理论分析和计算机仿真验证上述方法的合理性，形成较为完整的绿色通信理论与技术体系，为4G之后的绿色通信系统提供理论基础和技术支撑。

中文关键词： 能效管理；协作通信；分布式天线；多小区协作；中继调度

英文摘要： The traditional way to allocate system resources is according to the business peak capacity demand in the current wireless communications. This causes the waste of spectrum resources and energy consumption. Therefore, we focus on new wireless network architecture and resource allocation algorithm based on energy efficiency for single-cell multi-user and multi-cell multi-user scenarios. The resource allocation algorithm in the cooperation relay network with the cooperation game theory is presented. By introducing energy per unit and energy equilibrium rate, the various kinds of factors such as network energy equilibrium, network coverage and so on are integratedly considered. The optimization problem of distributed antenna system (DAS) energy efficiency is researched. Considering user minimum rate request, maximum power constraint and actual power model, energy efficiency optimization utility function and effective optimization algorithm are proposed. The base station sleep mechanism is explored. The network model is established according to the transmit power of base station and the rate of users. The low complexity algorithm that how the users in sleep cells access the active cells is presented. The low complexity adaptive dynamic cluster cooperation mechanism in CoMP is established. The tradeoff model between the cluster type and energy efficiency is researched. The rationality of the proposed algorithm is proved through the in-depth theoretical analysis and computer simulation results. A relatively complete green communications theory and technology system are formed, which can provide a theoretical basis and technical support for green communications after 4G.

英文关键词： Energy Efficiency Management;Cooperative Communication;Distributed Antenna System;Multi Cell Cooperation;Relay Scheduling