D2D通信中能耗优化的分布式资源管理算法  

Energy Efficient Distributed Resource Management Algorithm for D2D Communications

作　　者：张薇[1] 何琬冰 杨莲新 陈华梁[2] 吴丹[2] 

机构地区：[1]解放军理工大学通信工程学院学员大队1营4连,江苏南京210007 [2]解放军理工大学通信工程学院

出　　处：《军事通信技术》2015年第2期51-58,62,共9页Journal of Military Communications Technology

基　　金：国家自然科学基金资助项目(61301163);江苏省自然科学基金资助项目(BK20130067)

摘　　要：端到端(D2D)通信技术近年来受到通信学术界的普遍关注,它绕过基站直接进行数据通信,可以减轻基站的负载,节省系统通信资源,提高系统性能和用户体验。然而,D2D通信技术也带来了一些棘手的资源管理问题,例如,如何进行模式选择以调度使用系统链路资源、抑制蜂窝用户和D2D用户之间的相互干扰,如何进行功率控制以满足用户需求等等。文章分析了多用户D2D通信系统的链路共享机制和用户功率分配策略,为提升系统中各用户的能效性能,基于联盟形成博弈和非合作博弈提出了对应的分布式资源管理方案和算法。最后,通过数值仿真,验证了所提方案和算法的有效性,相比最初的资源使用策略,所提分布式方案和算法能够给用户带来明显的性能增益。Device-to-Device（D2D） communication technologies have been receiving wide at- tention in recent years. It accomplishes data transmission through the direct link, which bypasses the Base Station（BS）. As such, D2D communications can offload the traffic of the BS, save wire- less resources and improve system performance and user experience. However, it brings about some pending resource management problems, such as how to carry out the mode selection process to coordinate the utilization of system spectrum and inhibit the mutual interference be- tween the traditional cellular users and D2D users, and how to allocate the power of different us- ers to gain a better performance, et al. The resource sharing mechanisms and power allocation strategies were analyzed firstly. Then, to improve the energy efficiency of the wireless users, the corresponding algorithms were designed to implement the distributed resource management schemes based on coalition formation game and non-cooperative game. Finally, extensive numeri- cal simulations were presented to evaluate the resource management schemes and algorithms. The results show that, compared with the original resource utilization schemes, the proposed schemes and algorithms can obtain an obvious energy efficiency gain.

关 键 词：端到端通信 效率 分布式资源管理 博弈论 

分 类 号：TN929.5[电子电信—通信与信息系统]