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Differential ISI Cancellation for TDS-OFDM
Dengbao DU Jintao WANG Jun WANG Ke GONG Zhixing YANG
IEICE TRANSACTIONS on Communications
Publication Date: 2010/01/01
Online ISSN: 1745-1345
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Wireless Communication Technologies
inter-symbol interference (ISI), time domain synchronous orthogonal frequency division multiplexing (TDS-OFDM), Viterbi decoder,
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A differential inter-symbol interference (ISI) cancellation method for time domain synchronous orthogonal frequency division multiplexing (TDS-OFDM) systems is proposed. The differential output of an OFDM system can greatly reduce the impact of ISI in the frequency domain and it constructs a convolutional structure, thus the Viterbi decoding algorithm can be used to recover the transmitted information from the output signal. Simulation results show the effectiveness of the proposed method.