Title :
Differentially detected GMSK signals in the presence of ACI and nonlinearities
Author :
Mathiopoulos, P. Takis
Author_Institution :
Dept. of Electr. & Comput. Eng., British Columbia Univ., Vancouver, BC
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; AWGN; BER performance; DE-ED receiver; DF-DD receiver; Gaussian minimum shift keying; Rayleigh faded ACI; Rayleigh faded ACI channel; additive white Gaussian noise; adjacent channel interference; amplifier nonlinearities; bit error rate; computer simulation; decision feedback; differentially detected GMSK signals; error floor reductions; modulator impairments; wirelss mobile telecommunication systems; AWGN; Additive white noise; Bandwidth; Bit error rate; Fading; Feedback; Frequency; Radiofrequency interference; Signal detection; System performance;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2000. PIMRC 2000. The 11th IEEE International Symposium on
Conference_Location :
London
Print_ISBN :
0-7803-6463-5
DOI :
10.1109/PIMRC.2000.881491
