Title :
The effects of ACI and nonlinearities on the performance of ideal and non-ideal differentially detected GMSK signals
Author :
Mathiopoulos, P. Takis ; Toor, Jagdeep S.
Author_Institution :
Dept. of Electr. Eng., British Columbia Univ., Vancouver, BC, Canada
Abstract :
The effects on the performance of differentially detected Gaussian minimum shift keying (GMSK) signals operated in the presence of adjacent channel interference (ACI), modulator impairments, amplifier nonlinearities and additive white Gaussian noise (AWGN) is investigated. By means of computer simulation, the bit error rate (BER) performance of 1- and 2-bit conventional and decision feedback differentially detected (C-DD and DF-DD) GMSK systems in the presence of static and Rayleigh faded ACI is obtained. It is found that the best performance is achieved by the 2-bit DF-DD receiver and has resulted in BER performance improvements for the static ACI channel and error floor reductions for the Rayleigh faded ACI channel
Keywords :
AWGN; Rayleigh channels; adjacent channel interference; differential detection; error statistics; feedback; land mobile radio; minimum shift keying; 1-bit receiver; 2-bit receiver; ACI; AWGN; BER performance; DF-DD receiver; Gaussian minimum shift keying; Rayleigh faded ACI channel; additive white Gaussian noise; adjacent channel interference; amplifier nonlinearities; bit error rate; computer simulation; conventional differentially detected system; decision feedback differentially detected system; error floor reduction; ideal differentially detected GMSK signals; modulator impairments; nonideal differentially detected GMSK signals; nonlinearities; static faded ACI; wireless mobile communications; AWGN; Additive white noise; Bandwidth; Bit error rate; Feedback; Frequency; Interchannel interference; Radiofrequency interference; Signal detection; System performance;
Conference_Titel :
Communication Technology Proceedings, 1998. ICCT '98. 1998 International Conference on
Conference_Location :
Beijing
Print_ISBN :
7-80090-827-5
DOI :
10.1109/ICCT.1998.743397
