Channel Coding for Ultra-Reliable Low-Latency Communication in 5G Systems

Sybis, Michał; Wesołowski, Krzysztof; Jayasinghe, Keeth; Venkatasubramanian, Venkatkumar; Vukadinović, Vladimir

doi:10.1109/vtcfall.2016.7880930

Cited by 143 publications

(89 citation statements)

References 7 publications

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“…Assuming the decoder has a memory length of M bits for the component code and I number of iterations, then turbo codes has a complexity of 16.I.R.N.2 M additions and 8.I.R.N.2 M logical operations. [10] Complexity is expressed in terms of equivalent additions per operation. Number of equivalent additions for different operations are stated in Table I.…”

Section: Candidate Coding Schemesmentioning

confidence: 99%

“…(2N d v + 2P ) additions and I. (2d c − 1).P MAX process/comparisons [10]. Offset min-sum (OMS) decoder is a reduced complexity version of min-sum decoder where algorithm converges in a smaller number of iterations and it is used as the decoder for the simulations in this paper.…”

Section: B Ldpc Codesmentioning

confidence: 99%

“…While different code rates can be achieved by changing the number of frozen bits in polar codes, a puncturing scheme is needed to obtain some code lengths. SC decoder has a complexity of only N Log 2 N additions where as SCL decoder with list size of L has a complexity of L.N.log 2 N +(N −P ).L.Log 2 L additions [10].…”

Section: Polar Codesmentioning

confidence: 99%

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Channel coding for enhanced mobile broadband communication in 5G systems

Gamage

Rajatheva

Latva-aho

2017

2017 European Conference on Networks and Communications (EuCNC)

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Abstract-In this paper, candidate coding schemes are investigated for the new radio access technology (RAT) of the fifth generation (5G) mobile communication standard. Enhanced mobile broadband(eMBB) scenario of the 5G standard corresponding the activities in the third generation partnership project (3GPP) is considered. The coding schemes are evaluated in terms of block error rate (BLER), bit error rate (BER), computational complexity, and flexibility. These parameters comprise a suitable set to assess the performance of different services and applications. Turbo, low density parity check (LDPC), and polar codes are considered as the candidate schemes. These are investigated in terms of obtaining suitable rates, block lengths by proper design for a fair comparison. The simulations have been carried out in order to obtain BLER / BER performance for various code rates and block lengths, in additive white Gaussian noise (AWGN) channel. It can be seen from the simulations that although polar codes perform well at short block lengths, LDPC has a relatively good performance at all the block lengths and code rates. In addition, complexity of the LDPC codes is relatively low.

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Section: Candidate Coding Schemesmentioning

confidence: 99%

Section: B Ldpc Codesmentioning

confidence: 99%

See 1 more Smart Citation

Channel coding for enhanced mobile broadband communication in 5G systems

Gamage

Rajatheva

Latva-aho

2017

2017 European Conference on Networks and Communications (EuCNC)

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“…For the sake of simplicity, we focus on MAC-layer reliability against the collisions, and do not consider the transmission channel impact in the study. With lowest possible MCS scheme, we assume that a single transmission can achieve BLER < 1 − P rel [16].…”

Section: Introductionmentioning

confidence: 99%

Contention-Based Access for Ultra-Reliable Low Latency Uplink Transmissions

Singh

Tirkkonen

et al. 2018

IEEE Wireless Commun. Lett.

133

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Abstract-We consider sporadic ultra-reliable and low latency communications in the uplink 5G cellular systems. Reliable low latency access for randomly emerging packet transmission needs cannot be guaranteed in current wireless systems. To achieve the goal of low latency and high reliability simultaneously, we propose a contention-based transmission scheme aimed for the users with small payloads. We target to reduce collision probability by considering multiple transmissions for the same packet for reliable reception. We find the optimal number of consecutive multiple transmissions that reduces collisions and achieves target reliability within the latency window. By means of intended frame structure design for the 5G cellular systems, results are drawn and comparisons are made with default multi-channel slotted ALOHA access scheme.

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“…The mMTC networks are expected to provide low data rate services to massive number of low cost and low energy (battery constrained) devices with sparse short information [17]. The MC-MTC networks require low latency and ultra high reliability [7]. Thus, 5G-IoT scenarios include the characteristics of both mMTC and MC-MTC use cases.…”

Section: Introductionmentioning

confidence: 99%