协作通信系统的功率分配策略研究

摘要

In wireless communication,to confront the information channel decline,people put forward diversity technology.Cooperative diversity improves communication quality and communication performance by sharing common resources.The main research contents of this topic are power allocation strategy in cooperative communication technology.For the power allocation strategy of collaborative communication system we studied three ways:iterative method,the direct calculation method,the ideal exhaustive search method.The research shows that iterative method is the optimal method.Because the time of iterative can be controlled artificially,and the performance conforms with the ideal exhaustive search method.%在无线通信中,为了对抗信道衰落,人们提出了分集技术.协作分集通过共享资源达到改善通信质量、提高通信性能的目的.研究了放大转发协作通信系统中的功率分配策略.对于协作通信系统的功率分配研究了3种方法:迭代法,直接计算法,理想的穷搜索法.研究表明,迭代法是最佳方案,因为这种方法的迭代次数可以人为控制,而且性能与理想的穷搜索法相差不大.