An Improved Signal Detection Technique for OFDM System

Abstract:

In this paper a signal detection technique based on pilots which are transmitted for channel estimation in OFDM system is proposed in AWGN channel. We analyse the algorithm based on pilots and derive an improved signal detection technique. The performance is compared in terms of detection probability and ROC curves are given. The simulation results show that the improved detection technique whose computational complexity is not high can increase the precision of the detection probability at low SNR.

• Periodical: Applied Mechanics and Materials (Volumes 347-350)
• Pages: 3527-3531
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.347-350.3527
• Online since: August 2013
• Authors: Xiao Hong Wang, Feng Ming Li
• Keywords: Detection Probability, False Alarm Probability, Orthogonal Frequency Division Multiplexing (OFDM), Pilot, ROC, Signal Detection

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