摘要
为了提高无线通信系统的可靠性,将协作通信技术和空间分集技术都引入到传统的信道编码系统中,提出了更高质量的无线传输方法。采用全盲瑞利信道来模拟实际的无线通信环境,用自适应算法LMS和RLS分别对信道进行估计,并比较2种算法的收敛特性。理论分析和仿真均表明,在原有的仅采用信道编码技术的基础上,提出的新传输方法能使无线通信系统获得更高的可靠性。
In this paper, in order to improve the reliability of wireless communication systems, cooperative communication technolo- gy and spatial diversity technique are both introduced into the channel coding system and hence a better wireless transmission method is proposed. Blind Rayleigh channel is used to simulate the actual wireless communication,and afterwards two adaptive algorithms called LMS and RLS are adopted to estimate channels. Theoretical analysis and simulation results show that the proposed method can obtain higher reliability compared with the original communication system with only the channel coding technology.
出处
《无线电通信技术》
2013年第1期43-46,83,共5页
Radio Communications Technology
关键词
LDPC码
协作通信
空间分集
信道估计
LDPC code
cooperative communication
spatial diversity
channel estimation
