协作自组织无线多址接入技术研究

项目名称： 协作自组织无线多址接入技术研究

项目编号： No.61271195

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 无线电电子学、电信技术

项目作者： 刘凯

作者单位： 北京航空航天大学

项目金额： 75万元

中文摘要： 如何完成高效、可靠的信息传输和共享是当前无线网络亟待解决的重要问题，协作通信技术是达到这一要求的有效解决途径。近几年考虑节点协作的多址接入协议方面的研究逐渐增多，主要是基于现有随机接入类多址接入协议之上考虑协作节点中继来改进多址性能，尤其是在多速率网络中，有关多信道、传输功率控制等网络环境下保证服务质量（QoS）的协作多址接入协议的研究较少，协作所获得的分集增益对多址性能的影响和转化还有待进一步挖掘。 本项目将以在多跳无线网络中应用协作通信技术来提高多址性能为目标，从分析协作通信机制在媒质接入控制（MAC）层上的协作增益入手，研究协作节点的分布式自组织选择方法，研究多速率、多信道、功率控制条件下的自组织协作多址接入协议，研究面向QoS的自组织协作多址接入协议，从而开发协作通信技术在MAC层上提供快速、高效、可靠的传输能力，为建立基于协作的无线网络提供理论技术指导和应用基础。

中文关键词： 无线自组织网络；媒质接入控制；协作通信；协作节点选择；QoS保证

英文摘要： How to achieve high efficient and reliable information transmission and sharing is the key problem to be solved for current wireless networks. Cooperative communication technique is one of the most efficient solutions. In recent years, medium access control (MAC) protocols with cooperative communication consideration have attracted considerable interest due to their higher performance than that of the traditional MAC protocols. Generally, they consider the relay of cooperative node based on current random access MAC protocols to improve multiple access performance, especially in multirate wireless networks. Related work with quality-of-service (QoS) support in multichannel and power-controlled network environment is very few. Therefore, it is necessary to further explore multiple access performance from the diversity gain provided by cooperation. The objective of this project is to apply cooperative communication technique to multihop wireless networks to greatly improve multiple access performance. From the viewpoint of extending cooperative gain to MAC layer, distributed self-organizing relay selection schemes, multirate, multichannel and power-controlled cooperative MAC protocols and QoS-oriented cooperative MAC protocols are studied in the project in order to explore rapid, high efficient and reliable tra

英文关键词： Wireless self-organizing networks；Medium access control (MAC)；Cooperative communications；Relay selection；Quality-of-service (QoS) support