TY  - JOUR
T1  - High Performance Low Latency Parallel Successive Cancelation Decoder Structures for Polar Codes
AU  - Gazi, Orhan
AU  - Alrtaimi, Abdelkareim
PY  - 2020
DA  - November
JF  - Cankaya University Journal of Science and Engineering
JO  - CUJSE
PB  - Cankaya University
WT  - DergiPark
SN  - 2564-7954
SP  - 128
EP  - 136
VL  - 17
IS  - 2
LA  - en
AB  - Polar codes are decoded using successive cancellation (SC) algorithm where likelihood ratios (LRs) for data bits are calculated in a sequential manner, and decisions are made using the calculated LRs. During the decoding of an information bit, the decision results for the predecessor bits are used, and a wrongly decided predecessor bit has negative effect on the accurate calculation of the LR for the information bit being decoded. In SC algorithm, when LR=1, the information bit is decoded as u ̂_i=0, however, such a decision has 50% of chance of being correct. In this paper, we propose improved polar decoders utilizing a number of SC decoders. We consider the case of LR=1, and propose polar decoder structures for the more accurate calculation of the LRs of the successor bits.
KW  - Multi-Parallel SCD
KW  - Polar Coding
KW  - BEC
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UR  - https://dergipark.org.tr/en/pub/cankujse/issue//808902
L1  - https://dergipark.org.tr/en/download/article-file/1339063
ER  -