Distributed Satellite Relay Cooperative Communication with Optimized Signal Space Dimension

With the increasingly obvious trend of satellite communication and network integration, especially emergence inter links, interconnection between space nodes has become development inevitable requirement future communication. However, problems, such as long distance, large transmission delay loss, limited resources frequent switching limit ability spatial information transmission. Firstly, based on idea ring planning design, this paper uses joint design beamforming to physical layer coding in relay realize reliable information. Secondly, according diversity signal node exchange, a method compression matrix precoding vector is studied, which breaks through existing configuration constraints. In scheme, computational complexity reduced by compressing ensure decoding while obtaining alignment gain degrees freedom. Simulated real data results demonstrate superiority effectiveness proposed method.