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Title: Performance Comparison of Various ISI cancellation SFBC-OFDM Decoders in Highly Frequency Selective Channel
Authors: Patra, J P
Singh, P
Keywords: SFBC
Issue Date: Dec-2014
Citation: 9th IEEE International Conference on Industrial and Information Systems (ICIIS2014), Atal Bihari Vajpayee Indian Institute of Information Technology and Management Gwalior,15-17 December 2014
Abstract: The Alamouti coded Space Frequency Block Code (SFBC) based Orthogonal Frequency Division Multiplexing OFDM scheme is upon analyzed by assuming that the Channel Frequency Response (CFR) remains constant over Alamouti code period (two adjacent OFDM subcarriers). But when the channel is highly frequency selective, this assumption does not hold good and causes inter-symbol-interferences (ISI). Thus, due to the ISI effect, the simple Alamouti decoder is not sufficient to recover the original transmitted signal from the mixed transmitted signals at the receiver side. In this paper, we have investigated several ISI cancellation SFBC OFDM decoders which include SIC, ZF and DF. Finally, the performances of the above decoders are compared on the basis of symbol error rate (SER) in highly frequency selective channel environments.
Description: Copyright belongs to proceeding publisher
Appears in Collections:Conference Papers

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