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
Citations
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Proceedings ArticleDOI
Improved turbo-equalization, with application to bit interleaved modulations
TL;DR: This paper improves existing algorithms in that the turbo-equalization algorithm exhibits better performance when used with large constellations, and can be used in conjunction with bit interleaving and thus applies tobit interleaved coded modulations (BICM), which are now frequently used in wireless transmissions.
Journal ArticleDOI
User identification for convolutionally/turbo-coded systems and its applications
Yimin Jiang,Feng-Wen Sun +1 more
TL;DR: The user-identification algorithm embeds a periodic identification sequence into the convolutionally coded data sequence in the transmitter, and detects and removes the identification sequence with the assistance from the forward error-correction decoder in the receiver.
Dissertation
Algoritmes voor Software Radio, geschikt voor gecodeerde transmissie --Software Radio Algorithms for Coded Transmission
TL;DR: This manuscript is the apogee of just under four years spent at the TELIN department, and I was fortunate enough to have two excellent advisors: Marc Moeneclaey and Heidi Steendam.
Journal ArticleDOI
Low complexity iterative decoding for bit-interleaved coded modulation
TL;DR: A uniform soft-decision feedback ID (USF/ID) scheme is proposed that achieves impressive performance gain over HDF/ ID and has a practically more attractive implementation than SDF/ID, especially for complexity-constrained wireless applications.
Proceedings ArticleDOI
Bit-Interleaved Coded Modulation in the Presence of Unknown Impulsive Noise
TL;DR: This work proposes two novel decoding schemes for BICM in the presence of unknown IN and demonstrates that the proposed decoding schemes offer great performance improvement over the conventional decoder counterparts.
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.