摘要
商分编码QAM由于无需信道估计和均衡,因此降低了在瑞利衰落信道解调的复杂性。于是在分析一种星形商分编码QAM的基础上,将其在平坦瑞利衰落信道上的误码率公式推广到更多元的星座图,并对星座图进行了优化。发现数值计算结果和仿真结果的一致,从而证明了误码率公式的适用性。通过对此结果的比较表明,商分编码QAM在瑞利衰落信道的误码率比DAPSK低。
Due to no channel estimation required for rayleigh fading channel, quotient coded QAM has lower receiver complexity. A star-QAM with quotient coding is analyzed and its symbol error rate in flat rayleigh fading channel is generalized to larger constellations. Theoretical formula is justified by agreement of numerical and simulation results. Quotient coded QAM has lower SER than that of DAPSK. The constellation is also optimized.
出处
《浙江科技学院学报》
CAS
2006年第3期185-188,共4页
Journal of Zhejiang University of Science and Technology
