基于分布式空时编码的盲检测战术协同通信网络

Tactical Cooperative Communication Network with Blind Detection Based on Distributed Space-Time Coding

协同通信网络通过多终端共享天线提升系统的吞吐量和可靠性。其传输过程中独立成分分析(ICA)可以在系统信道参数未知,且不添加导频的情况下,实现未知数据的盲分离。考虑到战术通信环境特点,提出了一种协同通信网络传输方案。该方案通过ICA算法实现信道的盲分离,避免了复杂的导频信号设计,提高了网络资源利用率。仿真试验证明,其检测性能逼近最优最大似然检测性能。

Cooperative communication network can improve the system capability and the reliabili- ty by sharing multi-terminal antennas. The independent component analysis （ICA） can detect the unknown signal without knowing channel parameters and adding the pilot frequency. Considering characteristics of the tactical communication environment, the cooperative communication net- work transmission scheme is given. The blind signal separation is achieved and the pilot frequen- cy signal design is avoided by using the ICA algorithm. The utilization rate for the network re- sources is improved. Simulation results prove that the algorithm can achieve the maximum likeli- hood detection performance.