项目名称: 基于反馈的选择协作分集方法及性能研究
项目编号: No.61301125
项目类型: 青年科学基金项目
立项/批准年度: 2014
项目学科: 无线电电子学、电信技术
项目作者: 王恒
作者单位: 重庆邮电大学
项目金额: 24万元
中文摘要: 基于反馈的选择协作分集技术通过在协作时引入接收方的反馈,能够提高协作的智能程度和系统的频谱效率,复杂度低,性能优良,适合在无线传感器网络等时延容忍型网络中进行应用。本项目将探索各种复杂通信场景下该技术的方法和性能,主要内容包括:1)研究单次反馈这一基础场景下的反馈可靠性与反馈延迟问题,提出克服反馈信息传输影响的分布式选择协作分集方法;2)在单次反馈的基础上,将选择协作分集扩充至多轮反馈的ARQ场景下,研究其协作方法和性能;3)在ARQ多轮反馈场景的基础上,将选择协作进一步延伸至大规模网络场景中,提出扩散式选择协作分集方法并分析其性能;4)研究多源多目标网络中的选择协作分集策略与功率分配算法;5)建立仿真和实验平台,对各种协作方法进行仿真和实验验证。本项目的实施有望产生原创性的研究成果,填补基于反馈的选择协作分集技术在复杂通信场景中的研究空白,促进该项分集技术在实际无线网络中的应用。
中文关键词: 协作通信;中继协作;多用户协作;选择协作;
英文摘要: Selection cooperation with feedback is an intelligent and spectrally-efficient cooperative diversity strategy with the advantages of low complexity and excellent performance. It explores the effective feedback from the destination for cooperative process and is suitable for delay-tolerant networks, such as wireless sensor networks. This project will investigate the methods and performance of selection cooperation with feedback in various complicated communication scenarios. It consists of five parts: 1) The distributed selection cooperation methods for overcoming feedback reliability and feedback delay problem in the scenario of single feedback; 2) The selection cooperation method with multiple feedbacks in ARQ scenario and its performance; 3) A diffusion selection cooperation scheme and its performance for large networks; 4) The selection cooperation method and the power allocation algorithms for multiple source multiple destination scenario; 5) The simulation platform and test bed for verifying the proposed selection cooperation methods. The project will make contributions to the theoretical development of selection cooperation with feedback for complicated communication scenarios and benefits its applications in practical wireless networks.
英文关键词: cooperative communications;relay cooperation;multi-user cooperation;selection cooperation;