Journal ArticleDOI
Trellis-coded modulation with bit interleaving and iterative decoding
Xiaodong Li,James A. Ritcey +1 more
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TLDR
It is shown that convolutional codes with good Hamming-distance property can provide both high diversity order and large free Euclidean distance for BICM-ID, which provides a simple mechanism for variable-rate transmission.Abstract:
This paper considers bit-interleaved coded modulation (BICM) for bandwidth-efficient transmission using software radios. A simple iterative decoding (ID) method with hard-decision feedback is suggested to achieve better performance. The paper shows that convolutional codes with good Hamming-distance property can provide both high diversity order and large free Euclidean distance for BICM-ID. The method offers a common framework for coded modulation over channels with a variety of fading statistics. In addition, BICM-ID allows an efficient combination of punctured convolutional codes and multiphase/level modulation, and therefore provides a simple mechanism for variable-rate transmission.read more
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Proceedings ArticleDOI
Bit-interleaved coded unitary space-time modulation with hard decision-based iterative decoding
TL;DR: Simulation shows that the bit interleaved coded USTM scheme and its corresponding iterative decoding algorithm with hard decision feedback can greatly improve the BER performance with only limited calculation increment and no decrease of the data rate.
Proceedings ArticleDOI
The effect of imperfect CSI on QAM bit-interleaved coded modulation with iterative decoding in fading
Yuheng Huang,James A. Ritcey +1 more
TL;DR: An accurate and efficient bound is developed to predict the asymptotic BER of imperfect channel state information (CSI) of QAM bit-interleaved coded modulation with iterative decoding (BICM-ID), in flat Rayleigh fading.
Journal ArticleDOI
Bit-Interleaving in Fast FH/SSMA Systems with M-FSK Modulation
TL;DR: Both theoretical upper bounds and simulation results show that bit- interleaving degrades the performance of soft-decision decoded convolutional codes and turbo codes.
Proceedings ArticleDOI
Design of adaptive bit interleaved TCM for Rayleigh fading channels
TL;DR: A bandwidth efficient error correction scheme, namely the variable rate adaptive bit-interleaved trellis coded modulation (ABICM), for wireless mobile channels and it is found that there are significant gains relative to the fixed rate coding in terms of SNR and throughput.
Proceedings ArticleDOI
Labeling-Based Recipient Identification for BICM-ID in 64-QAM case
TL;DR: A complete system model is developed and the ability of LABRID to identify desired frames is investigated and the decision about frame destination can be made at the receiver side without any interaction with Medium Access Control (MAC) logic.
References
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Proceedings ArticleDOI
Near Shannon limit error-correcting coding and decoding: Turbo-codes. 1
TL;DR: In this article, a new class of convolutional codes called turbo-codes, whose performances in terms of bit error rate (BER) are close to the Shannon limit, is discussed.
Journal ArticleDOI
Optimal decoding of linear codes for minimizing symbol error rate (Corresp.)
TL;DR: The general problem of estimating the a posteriori probabilities of the states and transitions of a Markov source observed through a discrete memoryless channel is considered and an optimal decoding algorithm is derived.
Journal ArticleDOI
Channel coding with multilevel/phase signals
TL;DR: A coding technique is described which improves error performance of synchronous data links without sacrificing data rate or requiring more bandwidth by channel coding with expanded sets of multilevel/phase signals in a manner which increases free Euclidean distance.