基于冗余备份的协作感知数据传输方法研究  

Research on Data Merging Together with Optimization and Reliable Transmission of Cooperation Spectrum Sensing

作　　者：王寅贺[1] 李彦[1] 牛德智[1] 

机构地区：[1]空军工程大学理学院,陕西西安710051

出　　处：《空军工程大学学报（自然科学版）》2010年第6期38-41,51,共5页Journal of Air Force Engineering University(Natural Science Edition)

基　　金：陕西省自然科学基金资助项目(SJ08F12);陕西省电子信息系统综合集成重点实验室基金资助项目(200908A);航空科学基金资助项目(20090196004)

摘　　要：为了进一步提高频谱的利用率,增强协作频谱感知的实用性和准确性是十分必要的。对协作频谱感知的关键技术中可靠的数据传输方式加以改进,通过冗余数据多路径的方法增加数据传输过程中的可靠性和实时性。这样可将各感知节点的数据准确的,可靠的,实时的传输到中心节点,使中心节点做出精准快速的判决。文中仿真结果证明了该方法的可行性,并且一定程度上克服了干扰和噪声等因素对数据传输过程中的影响,对协作频谱检测技术的实际应用打下了基础。In order to improve spectrum utilization ratio,it is very necessary to enhance the practicability and veracity of the cooperation spectrum sensing.This paper analyzes and discusses the key technology of cooperation spectrum sensing and data transmission reliability by using the way of multipath data to increase the reliability and practicability during the data transmission process.By this means the data in every perceptive node can be transmitted to the central node more exactly,reliably and practically to make a quick and accurate judgment.And using this method the influences caused by interference and noises during the data transmission process can be overcome.Simulation results show that the method is feasible and lays a foundation for practical application of cooperation spectrum detection technology.

关 键 词：认知无线电 协作频谱感知 可靠性传输 多路径 

分 类 号：TN915.05[电子电信—通信与信息系统]