Volume3,May 2016,

Topic : Analysis of Rayleigh & RICIAN Channel for OFDM System

Authors:Divya.B || T.P.Surekha , Arjun.K.R

Abstract:With large amount of energy consumed in wireless LAN (WLAN) system, it becomes an important and meaningful issue to reduce the energy consumption of wireless communication devices nowadays. Here we use IEEE 802.11P standard in order to reduce energy in wireless system. In this paper we draw our attention using with the concept of orthogonal frequency division multiplexing (OFDM) which is a special case of multicarrier transmission, where a single DataStream is transmitted over a number of lower rate subcarriers. The high data rate transmission capability through multipath delay spread, OFDM has been adopted in modern wireless communication systems. The main focus of our paper is analyzing the Rayleigh and Rican channel to know the performance of system. In order to analyze two channels the two parameter are used Bit Error Rate (BER) and Signal-to-Noise Ratio (SNR). Comparing both the channel with and without using Weiner filter is performed. The wireless channel is assumed to include Additive White Gaussian Noise (AWGN) and multipath fading.Simulation results show that the proposed algorithm can effectively reduce noise while using wiener filter..

Keywords: AWGN, BER, OFDM, Rayleigh fading, Rician fading, SNR.

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