Journal
IEEE COMMUNICATIONS SURVEYS AND TUTORIALS
Volume 23, Issue 1, Pages 29-40Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/COMST.2020.2967127
Keywords
5G mobile communications; standardization; channel coding; block codes; error correction codes; polar codes
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Polar codes have been chosen as the channel coding scheme for 5G systems, with a focus on rate flexibility and low decoding latency. The tutorial describes the encoding process of polar codes adopted by the 5G standard and the challenges faced in designing a family of polar codes to meet the demands of 5G systems. The efforts have resulted in an elaborate framework that applies novel coding techniques to provide a solid channel code for NR requirements.
Polar codes have attracted the attention of academia and industry alike in the past decade, such that the 5th generation wireless systems (5G) standardization process of the 3rd generation partnership project (3GPP) chose polar codes as a channel coding scheme. In this tutorial, we provide a description of the encoding process of polar codes adopted by the 5G standard. We illustrate the struggles of designing a family of polar codes able to satisfy the demands of 5G systems, with particular attention to rate flexibility and low decoding latency. The result of these efforts is an elaborate framework that applies novel coding techniques to provide a solid channel code for NR requirements.
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