摘要
采用空时分组编码与 Turbo码级联技术 ,提高了经过衰落信道的无线通信系统可靠性 .利用双天线发送分集和单天线接收系统 ,其中将 12 Turbo码作为外码、简单的空时分组码作为内码 .叠代解码方案基于 MAP算法 .解码的复杂程度取决于外码格栅复杂程度 .仿真结果表明 ,利用空时分组编码的发送分集 。
In this paper, the concatenation of Turbo codes with space time block codes (STBCs) to improve the reliability of wireless communication over fading channels is considered. We combined rate 1/2 Turbo code as outer code and a simple two-antenna space-time block code as inner code for transmitting diversity and one receiver antenna. The iterative decoding scheme is based on MAP algorithm. The decoding complexity is mainly determined by the trellis complexity of the outer code. Simulation results show that exploiting transmit-diversity by using space-time block codes provides remarkable performance at the expense of almost no extra processing.
出处
《应用科学学报》
CAS
CSCD
2004年第1期10-15,共6页
Journal of Applied Sciences
基金
Project supported by the National 863 progra
