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Trellis shaped coded OFDM systems with high power efficiency

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1 Author(s)
Ochiai, H ; Yokohama Nat. Univ., Japan

A new trellis shaping design is proposed for the coded OFDM systems. We derive the branch metric based on the autocorrelation of transmit sequence. By minimizing the sidelobe components of the autocorrelation, the proposed trellis shaping can reduce both peak-to-average power ratio and average power of the band-limited QAM-OFDM signals. Computational reduction for metric calculation is also proposed.

Published in:

Information Theory, 2003. Proceedings. IEEE International Symposium on

Date of Conference:

29 June-4 July 2003