PERFORMANCE SIMULATION AND BER COMPARISION OFDM-MIMO SYSTEMS IN AWGN AND RAYLEIGH FADING CHANNELS WITH BPSK MODULATION SCHEMES

Sandeep K Jain, Lalit Bhanwrela, P. Jain
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Abstract

Behavior of communication medium play vital role in the growth of wireless communication system. To understand various wireless channel environments such as additive white Gaussian noise (AWGN) and Rayleigh fading channels in orthogonal frequency division multiplexing (OFDM) along with multiple input and multiple output (MIMO) system, we analyze mathematical relation of bit error rate (BER) against Signal to Noise ratio (SNR) and verified the same using MATLAB simulation, while considering the BPSK modulation scheme. The performance measured in terms of BER is evaluated for various channels of OFDM-MIMO system along with variation in number of antennas at transmitter and receiver side. It has been demonstrated that the BER and probability of detection improves against SNR per bit, as the diversity employs at transmitter or/and receiver end.
BPSK调制下AWGN和RAYLEIGH衰落信道下OFDM-MIMO系统的性能仿真及误码率比较
通信介质的行为对无线通信系统的发展起着至关重要的作用。为了了解正交频分复用(OFDM)和多输入多输出(MIMO)系统中的各种无线信道环境,如加性高斯白噪声(AWGN)和瑞利衰落信道,我们分析了误码率(BER)与信噪比(SNR)的数学关系,并使用MATLAB仿真进行了验证,同时考虑BPSK调制方案。针对OFDM-MIMO系统的各种信道以及发射机和接收机侧天线数量的变化,评估了在BER方面测量的性能。已经证明,由于在发射机或/和接收机端采用分集,BER和检测概率相对于每比特的SNR有所提高。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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