Vol. 3 Issue 3
Year: 2014
Issue:May-Jul
Title:Frame Error Rate Performance for Adaptive M-QAM / S-OFDM Based Wireless Systems
Author Name:A. Raja and V. Thulasibai
Synopsis:
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.
Year: 2014
Issue:May-Jul
Title:Frame Error Rate Performance for Adaptive M-QAM / S-OFDM Based Wireless Systems
Author Name:A. Raja and V. Thulasibai
Synopsis:
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.
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