- Research Article
- Open Access
Decoding Schemes for FBMC with Single-Delay STTC
- Chrislin Lélé1 and
- Didier Le Ruyet1Email author
https://doi.org/10.1155/2010/689824
© Lélé and D. Le Ruyet. 2010
- Received: 5 June 2009
- Accepted: 28 December 2009
- Published: 26 January 2010
Abstract
Orthogonally multiplexed Quadrature Amplitude Modulation (OQAM) with Filter-Bank-based MultiCarrier modulation (FBMC) is a multicarrier modulation scheme that can be considered an alternative to the conventional orthogonal frequency division multiplexing (OFDM) with cyclic prefix (CP) for transmission over multipath fading channels. However, as OQAM-based FBMC is based on real orthogonality, transmission over a complex-valued channel makes the decoding process more challenging compared to CP-OFDM case. Moreover, if we apply Multiple Input Multiple Output (MIMO) techniques to OQAM-based FBMC, the decoding schemes are different from the ones used in CP-OFDM. In this paper, we consider the combination of OQAM-based FBMC with single-delay Space-Time Trellis Coding (STTC). We extend the decoding process presented earlier in the case of
transmit antennas to greater values of
. Then, for
, we make an analysis of the theoretical and simulation performance of ML and Viterbi decoding. Finally, to improve the performance of this method, we suggest an iterative decoding method. We show that the OQAM-based FBMC iterative decoding scheme can slightly outperform CP-OFDM.
Keywords
- Information Technology
- Quantum Information
- Full Article
- Publisher Note
- Decode Scheme
Publisher note
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This article is published under license to BioMed Central Ltd. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.