Polar codes with the unequal error protection property

Cui, Chen, Xiang, Wei, Wang, Zhenyong, and Guo, Qing (2018) Polar codes with the unequal error protection property. Computer Communications, 123. pp. 116-125.

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Abstract

The Internet of Things (IoT) is expected to support a wide variety of devices with different transmission reliability requirements. Channel codes with the unequal error protection (UEP) property are rather appealing for such applications. As the first provably capacity-achieving codes, polar codes have excellent error-correcting performances over a wide range of block lengths with low encoding and decoding complexities, which makes these codes well-suited for the energy-constrained IoT applications. Polar codes with unequal error protection are desirable. However, the UEP property of polar codes has not been explored explicitly in existing works. In this paper, a construction method for UEP polar codes is proposed based upon a novel selection rule of bit channels. Refreezing and reselecting operations are employed to enable the UEP property for polar codes. The upper and lower bounds on the block error rate (BLER) of each data block are derived. Simulation results show that the proposed codes can provide a good performance of unequal error protection.

Item ID: 53892
Item Type: Article (Research - C1)
ISSN: 1873-703X
Keywords: polar codes, unequal error protection, Internet of Things, block error rate
Funders: National Natural Science Foundation of China (NNSFC), Fundamental Research Funds of Shenzhen Innovation of Science and Technology Commitee (FRFSISTC)
Projects and Grants: NNSFC 61601147, NNSFC 61571316, NNSFC 61371100, FRFSISTC JCYJ20160331141634788
Date Deposited: 06 Jun 2018 07:52
FoR Codes: 10 TECHNOLOGY > 1005 Communications Technologies > 100504 Data Communications @ 100%
SEO Codes: 89 INFORMATION AND COMMUNICATION SERVICES > 8901 Communication Networks and Services > 890103 Mobile Data Networks and Services @ 100%
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