An Incremental Redundancy HARQ Scheme for Polar Code

Ma, Liang; JieXiong,; Wei, Yuejun

doi:10.48550/arxiv.1708.09679

Cited by 9 publications

(8 citation statements)

References 16 publications

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“…In this work, we prove that the scheme in [13] can achieve capacity asymptotically in the block length under some design constraints. In addition, a length-flexible IR-HARQ scheme based on dynamically frozen bits and QUP is proposed.…”

Section: Introductionmentioning

confidence: 92%

“…A polar code extension method is presented in [13]. Consider the 1st transmission with (N 1 , k) polar code c(1…”

Section: B Existing Schemes: Polar Extensionmentioning

confidence: 99%

“…The bits which are already frozen have to be frozen for all extensions. This scheme is equivalent to the polar code extension method in [13] if n 1 is a power of two and n t = t−1 q=1 n q , t = 2, 3, . .…”

Section: Algorithm 1: Design Tth Transmissionmentioning

confidence: 99%

“…The capacity-achievability of this scheme is proved in [11] by using the nesting property. In [13], a polar code extension method is presented which outperforms the scheme in [11], [12] for finite block length.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Flexible IR-HARQ scheme for polar-coded modulation

Yuan

Steiner

Prinz

et al. 2018

2018 IEEE Wireless Communications and Networking Conference Workshops (WCNCW)

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A flexible incremental redundancy hybrid automated repeat request (IR-HARQ) scheme for polar codes is proposed based on dynamically frozen bits and the quasi-uniform puncturing (QUP) algorithm. The length of each transmission is not restricted to a power of two. It is applicable for the binary input additive white Gaussian noise (biAWGN) channel as well as higher-order modulation. Simulation results show that this scheme has similar performance as directly designed polar codes with QUP and outperforms LTE-turbo and 5G-LDPC codes with IR-HARQ.

show abstract

Section: Introductionmentioning

confidence: 92%

“…A polar code extension method is presented in [13]. Consider the 1st transmission with (N 1 , k) polar code c(1…”

Section: B Existing Schemes: Polar Extensionmentioning

confidence: 99%

Section: Algorithm 1: Design Tth Transmissionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Flexible IR-HARQ scheme for polar-coded modulation

Yuan

Steiner

Prinz

et al. 2018

2018 IEEE Wireless Communications and Networking Conference Workshops (WCNCW)

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“…To improve the throughput, an IR-HARQ scheme with puncturing and extending of polar codes was proposed in Ref. [62], which can reach any required code rate. A polar code extension method by copying information bits to the proper positions of the extend part was proposed in Ref.…”

Section: Qiaoli Zeng Et Al: Polar Codes: Encoding/decoding and Rate-c...mentioning

confidence: 99%

Polar Codes: Encoding/Decoding and Rate-Compatible Jointly Design for HARQ System

Zeng

Zhou

et al. 2021

Intell. and Converged Netw.

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Polar coding are the first class of provable capacity-achieving coding techniques for a wide range of channels. With an ideal recursive structure and many elegant mathematical properties, polar codes are inherently implemented with low complexity encoding and decoding algorithms. Since the block length of the original polar construction is limited to powers of two, rate-compatible polar codes (RCPC) are presented to meet the flexible length/rate transmission requirements in practice. The RCPC codes are well-conditioned to combine with the hybrid automatic repeat request (HARQ) system, providing high throughput efficiency and such RCPC-HAPQ scheme is commonly used in delay-insensitive communication system. This paper first gives a survey of both the classical and state-of-the-art encoding/decoding algorithms for polar codes. Then the RCPC construction methods are discussed, including the puncturing, shortening, multi-kernel construction, etc. Finally, we investigate several RCPC-HARQ jointly design systems and discuss their encoding gain and re-transmission diversity gain.

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Rateless Coding Schemes Using Polar Codes: Truly “No” Rates?

et al. 2020

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In this paper, aiming to achieve rate adaptation for the rateless coding (RC) schemes of polar codes, we explore their throughput efficiency and optimize a series of rates that are set in two types of RC schemes. First, the RC scheme with incremental freezing (IF-RC) decoding is analyzed from the perspective of rate matching. Then, a new RC scheme based on extending codes and copying information bits (termed EC-RC) is developed in detail. Moreover, to overcome the drawback of an undefined rate sequence in RC transmission, rate optimization strategies are separately proposed for both IF-RC and EC-RC by maximizing throughput efficiency with dynamic programming. Closed-form expressions of throughput for these two RC methods are derived as a consequence. The optimization procedure can be realized in practice with low complexity. Finally, the numerical results and analyses demonstrate that rate adaptation of polar-coded RC can be achieved along with maximum throughput by our proposed strategies over both AWGN channels and Rayleigh fading channels. The two optimized RC schemes provide higher throughput efficiency than other existing rateless codes.

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An Incremental Redundancy HARQ Scheme for Polar Code

Cited by 9 publications

References 16 publications

Flexible IR-HARQ scheme for polar-coded modulation

Flexible IR-HARQ scheme for polar-coded modulation

Polar Codes: Encoding/Decoding and Rate-Compatible Jointly Design for HARQ System

Rateless Coding Schemes Using Polar Codes: Truly “No” Rates?

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