Results 31 to 40 of about 2,033,150 (305)

A novel method for encoding and decoding based on enhanced parity-check-concatenated polar codes

open access: yesDianxin kexue, 2021
Polar codes have perfect coding and decoding performance as a kind of error correction code, which have become a standard coding scheme for 5G short code control channel. While the length of polar codes is short, its performance is not good enough.
Yan WANG   +3 more
doaj   +2 more sources

American Polar Society Symposium 2003 [PDF]

open access: yes, 2003
Women's Roles in Polar Regions: Past, Present, and Future. American Polar Society Symposium 2003. Byrd Polar Research Center, The Ohio State University, Columbus, Ohio, October 9-10, 2003.Byrd Polar Research Center, The Ohio State UniversityAmerican ...
Byrd Polar Research Center
core   +1 more source

Polar Codes With Repeating Bits and the Construction by Cluster Pairwise Error Probability

open access: yesIEEE Access, 2019
A polar code with repeating bits (RB polar code), where a part of frozen bits only repeat their preceding information bits, is proposed. In the code construction, we propose cluster pairwise error probability (CPEP) to measure the competitiveness of the ...
Tao Wang, Daiming Qu, Tao Jiang
doaj   +1 more source

Guest editorial—the ballyhoo over polar bears [PDF]

open access: yes, 2009
Critics have said that there’s little or no justification for the focus that polar bears (Ursus maritimus) have received as a threatened species. Recent studies project dramatic reductions in polar bear numbers in just a few decades, in concert with the ...
Vongraven, Dag
core   +1 more source

Polar bears killed in Svalbard 1987–1992 [PDF]

open access: yes, 1993
A total of 26 polar bears have been killed in Svalbard since January 1987. Fifteen of these cases were self defense, four precautionary measures, six acts of mercy and one unknown.
Gjertz, Ian   +2 more
core   +1 more source

Low Power, Area Efficient Architecture for Successive Cancellation Decoder

open access: yesEmitter: International Journal of Engineering Technology, 2022
Polar codes have recently emerged as an error-correcting code and have become popular owing to their capacity-achieving nature. Polar code based communication system primarily consists of two parts, including Polar Encoder and Decoder.
Sujanth Roy J, G Lakshminarayanan
doaj   +1 more source

Polar Codes with Memory

open access: yesCoRR, 2019
12 pages, 14 figures, submitted to ...
Wenyue Zhou   +6 more
openaire   +3 more sources

Multi-CRC Polar Codes and M-SCFlip-Based Decoding

open access: yesIEEE Access, 2019
A multi-cyclic redundancy check (Multi-CRC) polar code construction algorithm is proposed in this paper to solve the error propagation problem of successive cancellation decoding for polar codes.
Rui Guo, Kangni Chen, Huaping Liu
doaj   +1 more source

Generalized Partially Information Coupled Polar Codes With Arbitrary Coupling Depth and Their Decoding Algorithms

open access: yesIEEE Access, 2021
We propose generalized partially information coupled (PIC) polar codes and their construction method. In the proposed codes, each code block (CB) shares systematic information bits partially with J adjacent CBs on each side, where J is referred to as the
Hyoungbae Ahn   +2 more
doaj   +1 more source

Polar Codes for Broadcast Channels [PDF]

open access: yesIEEE Transactions on Information Theory, 2013
Polar codes are introduced for discrete memoryless broadcast channels. For $m$-user deterministic broadcast channels, polarization is applied to map uniformly random message bits from $m$ independent messages to one codeword while satisfying broadcast constraints.
Goela, Naveen   +2 more
openaire   +3 more sources

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