Efficient high data communication Using orthogonal frequency Division multiplexing

Abstract

Wireless communication system needs a spectrum efficient a newlinepower efficient and a cost efficient communication with high throughput to newlineprovide communication for ubiquities applications such as voice data newlinepicture video movies multimedia services Global Positional System GPS newlinenavigational system telemedicine and other value added communication In newlinethe first category the spectrum efficiency in different types modulation newlinetechniques and multiple access is analysed The Quadrature Phase Shift newlineKeying QPSK and Orthogonal Frequency Division Multiple Access newline OFDMA combination are examined for various data rates But throughput newlineis reduced due to different types of interferences such as in band interference newlineout of band interference Inter Symbol newline