LDPC Decoding Over Nonbinary Queue-Based Burst Noise Channels

Melo, Pedro; Pimentel, Cecílio; Alajaji, Fady

doi:10.1109/tvt.2015.2395382

Cited by 8 publications

(7 citation statements)

References 19 publications

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“…These results consider only f D T =10 −3 , which represents a slow fading channel, but the same methodology can be applied to distinct parameters. The models developed in this work can be used in decoding schemes that employ a joint channel estimation and decoding strategy that exploits the channel memory in the decoding process . An interesting future direction is the construction of BDCs for DFCs with soft decision …”

Section: Resultsmentioning

confidence: 99%

Markov modeling of discrete fading channels using birth‐death channels

Moreira¹,

Pimentel

2019

Int J Communication

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Finite-state Markov channels (FSMCs) are widely employed to model the memory of time-correlated discrete fading channels (DFCs). This work proposes a special class of FSMCs, denoted birth-death channels (BDCs), to model the statistical behavior of the DFC. The number of states that generates accurate BDCs is estimated for a broad range of fading environments. Next, we evaluate the performance of error-correcting codes over the BDC. A statistic of interest for this analysis is the P(m, n), the probability the channel generates up to m errors in a block of length n. It also proposed a combinatorial method to evaluate the probability P(m, n) for the BDC. The study of the statistical description of this channels has applications in modeling real channels and in designing coded systems for channels with memory.KEYWORDS channels with memory, error probability, fading channels, finite-state Markov channels, sequence enumeration Int J Commun Syst. 2019;32:e4017.wileyonlinelibrary.com/journal/dac

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Section: Resultsmentioning

confidence: 99%

Markov modeling of discrete fading channels using birth‐death channels

Moreira¹,

Pimentel

2019

Int J Communication

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“…The multitude of communication standards and protocols make the radio spectrum a highly congested resource where the number of interferers increases considerably [10]. Current techniques associated with suitable modulations and coding implementing a point-to-point link have approached the theoretical limit of Shannon [11]. However, the spectral efficiency acquired by these techniques has not yet managed to overcome the limits of the performances that they must satisfy.…”

Section: Related Workmentioning

confidence: 99%

Evaluation of Development Level and Technical Contribution of Recent Technologies Adopted to Meet the Challenges of 5G Wireless Cellular Networks

Albadran

2021

Symmetry

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The evolution of the global wireless market is accompanied by an increased need in terms of speed and number of users, lower latency, better coverage, better spectral efficiency and quality of service, etc. To meet these needs, 5G has recently been introduced as an effective solution which targets, via the large scale deployment of symmetric antennas, a wide variety of sectors such as energy, health, media, industry, transport and especially wireless cellular networks which are among the most important pillars of modern societies. Multiple Input, Multiple Output (MIMO) systems, which have been extended to “Massive MIMO” mode and which consist of increasing the number of radiating elements involved in the transmission and reception of the radio link, are a very promising solution for improving the spectral efficiency of wireless communication systems (WCSs). Motivated by the aforementioned developments, the present paper investigates the increased capacity of MIMO systems to improve transmission in WCSs using 5G. It carefully focuses on the evaluation of the development level and technical contribution of MIMO systems and millimeter wave (mmWave) bands in 5G wireless cellular networks (WCNs) and gives important recommendations.

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“…For general binary-input memoryless output-symmetric channels, the general stability condition plays an important role in analyzing the upper bound on the threshold [41], and the stability condition is given in (12), as shown at the bottom of the next page. Based on this condition, we demonstrate some conclusions about the upper bound on thresholds in the following.…”

Section: A Gaussian Approximation Of Ldpc Codes Overmentioning

confidence: 99%

“…However, the concatenated structure would increase decoding complexity and delay. The other way focuses on constructing and optimizing the parity-check matrices of LDPC codes with good error-correction capabilities and large maximum resolvable erasure burst length [4], [5], [11], [12], [22]. The algebraic construction is one of the important design methods for combating the burst erasures noise.…”

Section: Introductionmentioning

confidence: 99%

Protograph-Based Globally-Coupled LDPC Codes Over the Gaussian Channel With Burst Erasures

Bai

Zhu

et al. 2019

IEEE Access

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This paper presents two types of protograph-based globally-coupled low-density parity-check (GC-LDPC) codes formed by a new edge spreading operation. This operation is called the global edge spreading. The Gaussian approximation (GA) and the protograph-based extrinsic information transfer (P-EXIT) analysis are then generalized over a special type of burst-erasure channels (BuECs). Such channel incorporates both Gaussian noise and burst erasures, and is denoted by the Gaussian channel with burst erasures (BuEC-G). Furthermore, the stability condition for BuECs-G is proved and an edge spreading optimization method is proposed to design the structured GC-LDPC codes by predicting the iterative decoding thresholds of corresponding protographs. Simulation results show that the optimized GC-LDPC codes can achieve better thresholds and error performances than existing well-designed GC-LDPC codes, and provide near-capacity performances over BuECs-G. INDEX TERMS Globally-coupled low-density parity-check codes, Gaussian approximation, protographbased extrinsic information transfer, burst-erasure, Gilbert-Elliott erasure.

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LDPC Decoding Over Nonbinary Queue-Based Burst Noise Channels

Cited by 8 publications

References 19 publications

Markov modeling of discrete fading channels using birth‐death channels

Markov modeling of discrete fading channels using birth‐death channels

Evaluation of Development Level and Technical Contribution of Recent Technologies Adopted to Meet the Challenges of 5G Wireless Cellular Networks

Protograph-Based Globally-Coupled LDPC Codes Over the Gaussian Channel With Burst Erasures

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