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Degradation in FH-MFSK mobile radio system capacity due to Rayleigh fading and log-normal shadowing

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1 Author(s)
R. H. Muammar ; Dept. of Electr. Eng. & Comput. Sci., Illinois Univ., Chicago, IL, USA

A frequency-hopped multilevel frequency-shift-keying (FH-MFSK) system has been proposed for digital mobile radio communications. The performance of the system is evaluated by studying average probability of error caused by transmission impairments. The degradation in performance due to Rayleigh fading and log-normal shadowing environments is determined. With perfect transmission, where the degradation in the system performance is due to mutual interference between users only, the system can accommodate up to 209 simultaneous users at an average bit error rate of 10-3. The system capacity decreases to 110 users as a result of additive white Gaussian noise (AWGN), mutual interference, frequency-selective Rayleigh fading, and log-normal shadowing with normalized area mean of 20 dB and standard deviation of 6 dB

Published in:

IEEE Transactions on Vehicular Technology  (Volume:37 ,  Issue: 3 )