Title :
Performance evaluation of Rayleigh and log-normal GMSK signals in the presence of cochannel interference
Author :
Carter, P.P.S. ; Turkmani, A.M.D.
Author_Institution :
Dept. of Electr. Eng. & Electron., Liverpool Univ., UK
fDate :
4/1/1992 12:00:00 AM
Abstract :
Present the results of a software study of multiple cochannel interferers in a digital system, employing Gaussian minimum shift keying (GMSK) modulation with a bandwidth data rate product B bT=0.3. The bit-error rate (BER) performance was determined in a Rayleigh and log-normal fading environment typically encountered in mobile radio systems. It has been shown that the error rate is independent of the number of interferers present when the total S/I ratio of up to six interferers is considered. Additional performance measures were investigated such as block-error rates, the probability, P(m, n) of having m errors in a block of length n, burst and gap-length distributions. These measures have shown that the interference causes errors to occur in a more bursty manner than Gaussian noise.<>
Keywords :
cellular radio; digital radio systems; error statistics; fading; minimum shift keying; radiofrequency interference; telecommunication channels; BER performance; GMSK signals; Gaussian minimum shift keying; Rayleigh fading; bit-error rate; block-error rates; cellular radio; cochannel interference; digital mobile radio systems; log-normal fading; multiple cochannel interferers; performance measures;
Journal_Title :
Communications, Speech and Vision, IEE Proceedings I
