A Performance Study of GSM and GSM/EDGE Systems for Different Multipath Fading Channels
نویسنده
چکیده
This study investigates the performance of GSM and Enhanced Data rate for GSM Evolution (EDGE) mobile communication systems operating in both Additive White Gaussian Noise (AWGN) channel and Rayleigh fading channels. This investigation presents the characteristics of the bit error rate (BER) for conventional GSM and GSM/EDGE MCS-1 and GSM/EDGE MCS-7 systems. These characteristics are compared for different models of fading channel in order to describe various environments. These fading channels are HT100, HT 50, TU 50, TU 3, EQ and SUI1. The investigation results indicate clearly that to achieve a bit error rate BER of in additive white Gaussian Noise AWGN channel, the signal-to-noise ratio SNR should be 5.8, 4.9 and 13.9 dB when conventional GSM, MCS-1 EDGE (GMSK modulation), and MCS-7 EDGE (3 /8-8PSK modulation) systems are used, respectively. These values are to be compared with 11.3, 10.0 and 20.5 dB, respectively, for HT100-type fading channel. The MSC-1 EDGE system offers the best BER characteristics followed by conventional GSM system. The MCS-7 EDGE offers the worst BER characteristics among the three systems.
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