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Frame Error Rate Performance for Adaptive M-QAM / S-OFDM Based Wireless Systems

A. Raja*, V. Thulasi Bai**

* Research Scholar, Sathyabama University, Chennai, India

** Professor and Dean, Department of ECE, Prathyusha Institute of Technology and Management, Chennai, India

Periodicity:May - July'2014
DOI : https://doi.org/10.26634/jcs.3.3.3176

Abstract

OFDM is an high data rate transmission modulation scheme which has complexity in wireless channels and can be merged with scalability for improving reliability of system called S-OFDM. In this paper, the authors proposed a performance analysis of Frame Error Rate (FER) for hybrid S-OFDM system in Rayleigh channel. The proposed scheme is shown to achieve lower Bit Error Rate (BER) and capturing more efficient receiver of multipath energy. Selecting a fraction of subcarriers with conjugate symmetric inputs to achieve the spreading. A channel SNR versus BER for both time and frequency for a 512-subcarrier OFDM with single-transmitter and single-receiver systems over an indoor wireless channel. The performance is evaluated for an S-OFDM system based on the IEEE 802.11. Simulation results shows, that the proposed scheme can achieve low BER and FER for a QAM- S-OFDM Symbols. The average channel SNR is 10 dB. The 16-QAM and 64-QAM are used in cable modem and many wireless technology applications.

Keywords

Orthogonal Frequency Division Multiplexing (OFDM), Scalable Orthogonal Frequency Division Multiplexing (SOFDM), Quadrature Amplitude Modulation (QAM), Signal to Noise Ratio (SNR), Frame Error Rate (FER), Bit Error Rate (BER).

How to Cite this Article?

Raja, A., and Thulasibai, V. (2014). Frame Error Rate Performance for Adaptive M-QAM / S-OFDM Based Wireless Systems. i-manager’s Journal on Communication Engineering and Systems, 3(3), 1-6. https://doi.org/10.26634/jcs.3.3.3176

References

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