一种交织迭代无线多跳中继方案研究

An interleaver iteration based wireless multihop relay scheme

在新一代无线通信系统中,迭代检测技术以其良好的性能得到广泛研究与应用.介绍了基于交织迭代的多用户检测算法,并将其引入多跳中继技术中,然后结合OFDM和MIMO技术对其性能进行仿真和分析.同时,设计了一种双时隙传输方案,其很好地克服相邻中继阶段传输时产生的自耦合干扰现象,使系统具有较高的空间分集效果,以及灵活性的系统架构、更强的传输能力.

In the new generation wireless communication systems,iterative detection is widely studied and used due to good detec- tion performance. This paper studies the interleaving and iterative detection algorithm, and uses it in the multi-hop relay system. Adopted with OFDM and MIMO technology, the performance of multi-hop relay system is evaluated. Also, a two time slot transmis- sion scheme is proposed for IDMA-MIMO-OFDM systems ,which can overcome the self-interference during the multi-hop transmis- sion, achieve a high spatial diversity gain, and obtain a flexible system architecture and more powerful transmission ability.