DocumentCode
1666995
Title
Decision directed coherent detection of 16-QAM on fading channels
Author
Nakhjiri, Madjid Faghih ; Svensson, Arne
Author_Institution
Dept. of Inf. Theory, Chalmers Univ. of Technol., Goteborg, Sweden
fYear
1995
Firstpage
125
Lastpage
131
Abstract
A coherent detector for differential 16-QAM on Rayleigh fading channels is presented. The phase and amplitude reference needed for the detection are provided by an MMSE estimate of the fading process. The estimation is assisted by previous decisions and implemented by a FIR-filter. The bit error performance of the detector proposed is analysed. According to the analysis, the proposed detector exhibits only a performance degradation of 8 dB compared to an ideal coherent detector for 16-QAM at BER of 1% for a normalized Doppler frequency of 0.05.
Keywords
fading; 16-QAM; FIR-filter; MMSE estimate; Rayleigh fading channels; amplitude reference; bit error; coherent detector; decision directed coherent detection; differential 16-QAM; performance degradation; phase reference; Amplitude estimation; Bit error rate; Degradation; Detectors; Fading; Frequency; Performance analysis; Phase detection; Phase estimation; Rayleigh channels;
fLanguage
English
Publisher
ieee
Conference_Titel
Wireless Communication System Symposium, 1995., IEEE
Type
conf
DOI
10.1109/WCSS.1995.588495
Filename
588495
Link To Document