能效与资源优化的超蜂窝移动通信系统新架构及其技术挑战  

Energy efficiency and resource optimized hyper-cellular mobile communication system architecture and its technical challenges

作　　者：牛志升[1] 周盛[1] 周世东[1] 钟晓峰[1] 王京[1] 

机构地区：[1]清华大学电子工程系,清华大学信息科学与技术国家实验室(筹),北京100084

出　　处：《中国科学：信息科学》2012年第10期1191-1203,共13页Scientia Sinica(Informationis)

基　　金：国家重点基础研究发展计划(批准号:2012CB316000);国家自然科学基金(批准号:61021001;6092500)资助项目

摘　　要：各种信息技术在经历了几十年的发展之后逐渐都遇到了容量与能耗的瓶颈,特别是蜂窝移动通信系统,进一步提高网络容量受到了频谱资源和能耗的双重约束,如何以受限的频谱与能量大幅度提高网络容量是一个巨大的挑战.为了应对该挑战,仅靠无线传输技术的改进和硬件实现水平的提高是远远不够的,需要从系统和网络的角度探索频谱与能量的高效利用机理与方法.本文面向未来移动通信技术的最新发展以及节能减排的战略要求,以全网的能量效率为优化目标,提出一种全新的超蜂窝网络的体系架构,通过控制信道覆盖与业务信道覆盖适度的分离引入网络的柔性覆盖、资源的弹性匹配、以及业务的适度服务机制,实现能效与资源的联合优化,满足未来10～20年移动通信对宽带大容量的迫切需求.After developing for many decades, all kinds of information technologies gradually come across the bottlenecks of capacity and energy consumption, especially in the cellular mobile communication system, where it is a great challenge to increase the network capacity under the dual constraints of limited spectrum resources and energy consumption. It is far from enough by only improving the wireless transmission technologies and hardware implementation level, and we must investigate efficient mechanisms and methods of spectrum and energy utilization from the view of the whole system. This paper is intended for the development of future mobile communication technologies and the strategic requirements of energy saving, in which a novel framework of hyper- cellular system is proposed and the energy efficiency of the whole cellular network is optimized. By separating the coverage of control channel and data channel, the mechanisms of soft coverage, soft resource matching, and service on-demand are introduced, the energy efficiency and network resources are jointly optimized, and the urging requirements of broadband and large capacity in the next 10-20 years will be satisfied.

关 键 词：能量效率 频谱效率 控制信道 业务信道 超蜂窝 

分 类 号：TN929.53[电子电信—通信与信息系统]