PREAMBLE DETECTION ON OFDM WITH REYLIGH CHANNEL

Abstract

A problem encountered in the design of receivers for communication systems is the detection of data from noisy measurements of the transmitted signals. In any realistic scenario the receiver is, due to the noise, bound to make occasional errors. Therefore, designing a receiver which has the property that this probability of error is minimal is appealing, both from a practical and a theoretical point of view. In wireless-domain, performance evaluation of preamble detection under varying channel conditions is of compelling research interest nowadays. Most of the existing works, based on preamble detection under channel conditions are limited to Reyligh etc in Mobile WiMAX. In this paper correlation of preamble detection (maximum normalized correlation (MNC or MINN), Schmidl and Cox maximum normalized correlation (SC or MSC), maximum normalized correlation using a geometric mean (GM or MGM), maximum likelihood (ML or MML) method are comparison on OFDM using Reyligh Channel. In this model we have used QAM (Quadrature Amplitude Modulation) in modulation technique, and required SNR value is 0dB to 30dB and the performance done by used MATLAB R2013a version.