BER analysis of 2PSK, 4PSK, and 16QAM with decision feedback channel estimation in frequency-selective slow Rayleigh fading

被引:23
作者
Adachi, F [1 ]
机构
[1] NTT Mobile Commun Network Inc, Wireless Labs, Kanagawa 2398536, Japan
关键词
channel estimation; frequency-selective; PSK; QAM; Rayleigh fading;
D O I
10.1109/25.790531
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The average bit error rate (BER) performances of coherently detected 2PSK, 4PSK, and 16QAM in frequency-selective slow Rayleigh fading are analyzed, Decision feedback channel estimation (DFCE) is considered, in which the past L-received signal samples are remodulated to remove the modulation phase by feeding back the detected symbol sequence and then averaged. Analytical expressions for the conditional BER for the given transmitted symbol sequence are derived, and the average BER performances are evaluated by Monte Carlo simulation. It is shown that as L increases, the BER performance improves and approaches that of ideal coherent detection (with perfect channel estimation), and the loss in E-b/N-0 required for BER = 0.1% relative to ideal coherent detection becomes as small as 0.4 dB when L = 10. It is found that while the best performance is achieved by 2PSK and 4PSK when additive white Gaussian noise (AWGN) is the predominant cause of error (i.e., low E-b/N-0 regions), 16QAM modulation can achieve almost the same performance as 4PSK when the delay spread is the predominant cause of error (i.e., large E-b/N-0 regions), and the worst performance in this case is by 2PSK, The effects of power delay profile shape (double-spike, exponential, and Gaussian profiles assumed), rolloff factors of the Nyquist transmit/receive filters, and the transmitted symbol sequence pattern on the average BER performance are discussed.
引用
收藏
页码:1563 / 1572
页数:10
相关论文
共 23 条
[1]   Decision feedback differential detection of differentially encoded 16APSK signals [J].
Adachi, F ;
Sawahashi, M .
IEEE TRANSACTIONS ON COMMUNICATIONS, 1996, 44 (04) :416-418
[2]   BER PERFORMANCE OF QDPSK WITH POSTDETECTION DIVERSITY RECEPTION IN MOBILE RADIO CHANNELS [J].
ADACHI, F ;
OHNO, K .
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, 1991, 40 (01) :237-249
[3]   DECISION-FEEDBACK MULTIPLE-SYMBOL DIFFERENTIAL DETECTION FOR M-ARY DPSK [J].
ADACHI, F ;
SAWAHASHI, M .
ELECTRONICS LETTERS, 1993, 29 (15) :1385-1387
[4]   PERFORMANCE ANALYSIS OF VARIOUS 16 LEVEL MODULATION SCHEMES UNDER RAYLEIGH FADING [J].
ADACHI, F ;
SAWAHASHI, M .
ELECTRONICS LETTERS, 1992, 28 (17) :1579-1581
[5]   DECISION-FEEDBACK DIFFERENTIAL DETECTION OF 16-DAPSK SIGNALS [J].
ADACHI, F ;
SAWAHASHI, M .
ELECTRONICS LETTERS, 1993, 29 (16) :1455-1457
[6]   Error rate analysis of differentially encoded and detected 16APSK under Rician fading [J].
Adachi, F .
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, 1996, 45 (01) :1-11
[7]  
Bello P., 1963, IEEE Transactions on Communications Systems, V11, P360, DOI 10.1109/TCOM.1963.1088793
[8]   ERROR ANALYSIS FOR CIRCULAR 16-DAPSK IN FREQUENCY-SELECTIVE RAYLEIGH FADING CHANNELS WITH DIVERSITY RECEPTION [J].
CHOW, YC ;
NIX, AR ;
MCGEEHAN, JP .
ELECTRONICS LETTERS, 1994, 30 (24) :2006-2007
[10]   Error probability analysis for 16 STAR-QAM in frequency-selective Rician fading with diversity reception [J].
Dong, XD ;
Tjhung, TT ;
Adachi, F .
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, 1998, 47 (03) :924-935