摘要 : An expression for the bit-error rate (BER) of 16 STAR-quadratureamplitude modulation (QAM) with differential encoding and detection in aRician fading channel with diversity reception is obtained. Two types ofintermediate frequency... 展开 An expression for the bit-error rate (BER) of 16 STAR-quadratureamplitude modulation (QAM) with differential encoding and detection in aRician fading channel with diversity reception is obtained. Two types ofintermediate frequency (IF) filters are considered in the analysis: theintersymbol interference (ISI)-free matched and nonISI-free Gaussianfilters. BER curves for various ratios of the line-of-sight (LOS) powerto the multipath power, Doppler spread frequencies, and orders ofdiversity are presented. It is shown that 16 STAR-QAM outperforms 16DPSK under the same power-limited condition. For the Gaussian receivefilter, a filter bandwidth of about 1.2 times the symbol rate is foundto lead to a minimum error probability prior to the appearance oferror-rate floors 收起