Performance Evaluation of Iterative IDMA Receivers on Modulation Schemes for Relay and Ad-Hoc Networks
International Journal on Recent Trends in Engineering & Technology, Vol. 05, No. 02, March 2011
4 Pages Posted: 7 Nov 2011
Date Written: November 7, 2011
In this paper, we have evaluated Bit Error Rate (BER) performance of interleave-division multiple-access (IDMA) systems with BPSK & QPSK modulation techniques when the system is subjected to Additive White Gaussian Noise (AWGN) in the channel. The BPSK and QPSK modulation techniques are already well trusted techniques with code division multiple-access (CDMA) systems however, IDMA scheme is referred as the extension of CDMA scheme. The simulation results demonstrate the superior performance of QPSK modulation in comparison to that of BPSK modulation method apart from the inherited advantage of better spectrum utilization. Thus, with the QPSK modulation exposes optimum and efficient data rate to mobile terminal for IDMA schemes.
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