alexa Abstract | Analysis of MRC and OC with OFDM In Terms Of BER Using Different Modulation Techniques over Rayleigh Channel
ISSN ONLINE(2278-8875) PRINT (2320-3765)

International Journal of Advanced Research in Electrical, Electronics and Instrumentation Engineering
Open Access

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Research Article Open Access

Abstract

In wireless communication due to presence of multipath fading effects and noise, antenna diversity is an important technique to mitigate these effects. The antenna diversity is the most cost effective technique to improve system performance and to increase the channel capacity. Also in recent years the dire need of high speed and reliable digital wireless communication which includes not only cellular phones but devices such as wireless modems, high definition television (HDTV) and digital radios. The need of high speed data transfer is catered by the orthogonal frequency division multiplexing (OFDM) and the performance of the system which is dictated by random fluctuations in the amplitude of the received signal is enhanced by using maximal ratio combining (MRC) and optimal combining(OC) diversity combining technique. Here is explanation of system performance having receiver antenna diversity along with OFDM in Rayleigh fading environment. The performance of system is evaluated in terms of signal to noise ratio (SNR) and bit error rate (BER) probability. The simulation result shows that the performance of OFDM system in Rayleigh fading in terms of SNR can be improved by using MRC and OC.

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Author(s): Surbhi Sharma, Palvinder Singh

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