Trellis coded communication systems in the presence of colored noise: performance analysis, simulation, and the swapping technique

Wang, J.-D.; Chung, H.Y.

doi:10.1109/glocom.1988.26016

Cited by 2 publications

(1 citation statement)

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“…Therefore, the performance of Viterbi decoding in this present case is suboptimal. In [12] the authors evaluate the loss of performance of Viterbi decoding in presence of correlated noise. The optimal performance using an ML decoding is very complex to implement since it requires an exhaustive search over all the possible transmitted sequences.…”

Section: A Theoretical Performance Analysismentioning

confidence: 99%

Decoding Schemes for FBMC with Single-Delay STTC

Lélé

Ruyet

2010

EURASIP J. Adv. Signal Process.

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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 N t = 2 transmit antennas to greater values of N t. Then, for N t ≥ 2, 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.

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Section: A Theoretical Performance Analysismentioning

confidence: 99%