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.

Author Name: Raja Alagar, V.Thulasi Bai

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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).

ISSN: 2277-5102

EISSN: 2277-5242

EOI/DOI:

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