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A new detection algorithm for OFDM system without cyclic prefix

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2 Author(s)
Chunguang Wang ; Coll. of Telecom Eng., Beijing Univ. of Posts & Telecommun., China ; Zheng Zhou

In OFDM system, cyclic prefix (CP) is necessary to combat intersymbol interference (ISI) and intercarrier interference (ICI). Employing CP simplifies the channel equalization, but results in a considerable bandwidth loss. In this paper, a multicarrier detection algorithm is proposed for OFDM system without CP, which implements the successive detection by decision-feedback equalizer (DFE) based on minimum mean-square error (MMSE) criterion. Simulation results show that the proposed scheme has higher bandwidth efficiency and better performance in bit error rate (BER).

Published in:

Emerging Technologies: Frontiers of Mobile and Wireless Communication, 2004. Proceedings of the IEEE 6th Circuits and Systems Symposium on  (Volume:2 )

Date of Conference:

31 May-2 June 2004