Results 11 to 20 of about 2,033,150 (305)

Polar Coding for Processes With Memory [PDF]

open access: yesIEEE Transactions on Information Theory, 2016
We study polar coding for stochastic processes with memory. For example, a process may be defined by the joint distribution of the input and output of a channel. The memory may be present in the channel, the input, or both. We show that $ψ$-mixing processes polarize under the standard Arıkan transform, under a mild condition.
Eren Sasoglu, Ido Tal
openaire   +3 more sources

Neural-Network-Assisted Polar Code Decoding Schemes

open access: yesApplied Sciences, 2022
The traditional fast successive-cancellation (SC) decoding algorithm can effectively reduce the decoding steps, but the decoding adopts a sub-optimal algorithm, so it cannot improve the bit error performance. In order to improve the bit error performance
Hengyan Liu   +3 more
doaj   +1 more source

The IMO Mandatory International Code of Safety for Ships: Charting a sustainable course for shipping in the Polar Regions?

open access: yes, 2021
Many Asian states such as China are increasingly engaged in maritime activties in the polar regions. The International Maritime Organisation (IMO) has developed a mandatory international code of safety for certain types of ships operating in polar waters
Leary DK
core   +1 more source

Improving Polar-Coded SCMA System by Information Coupling and Parity Check

open access: yesSensors, 2020
In this paper, the uplink information-coupled polar-coded sparse code multiple access (PC-SCMA) system is proposed. For this system, we first design the encoding method of systematic joint parity check and CRC-aided (PCCA) polar code.
Xi Wu, Yafeng Wang
doaj   +1 more source

Universal polar codes

open access: yes2014 IEEE International Symposium on Information Theory, 2014
Submitted to IEEE transactions on Information ...
Hassani, S. Hamed, Urbanke, Ruediger
openaire   +2 more sources

The Polar Code's Implications for Safe Ship Operations in the Arctic Region [PDF]

open access: yesTransNav, 2020
Simultaneously with a decreasing sea ice cover in the Arctic region an increase in ship traffic is experienced in these waters, meaning a higher probability of accidents and incidents to occur. The capability to handle emergency situations for shipowners,
Espen Engtrø   +2 more
doaj   +1 more source

Compound polar codes

open access: yes2013 Information Theory and Applications Workshop (ITA), 2013
A capacity-achieving scheme based on polar codes is proposed for reliable communication over multi-channels which can be directly applied to bit-interleaved coded modulation schemes. We start by reviewing the ground-breaking work of polar codes and then discuss our proposed scheme.
Hessam Mahdavifar   +3 more
openaire   +3 more sources

Polar-Coded Modulation

open access: yesIEEE Transactions on Communications, 2013
A framework is proposed that allows for a joint description and optimization of both binary polar coding and $2^m$-ary digital pulse-amplitude modulation (PAM) schemes such as multilevel coding (MLC) and bit-interleaved coded modulation (BICM). The conceptual equivalence of polar coding and multilevel coding is pointed out in detail.
Mathis Seidl   +3 more
openaire   +4 more sources

Comments to a polar bear population model [PDF]

open access: yes, 1985
Larsen, T. & Ugland, K. I. (Polar Research 2 n.s., 117-118) note correctly that a Leslie matrix model treats cubs and females as independent units which is not the case for polar bears.
Øritsland, Nils Are
core   +1 more source

A Modified Approach to Punctured Product Polar Codes

open access: yesJournal of Telecommunications and Information Technology, 2019
A high-performance polar code introduced as a product polar code can be constructed by concatenating two short length polar codes. The punctured structure of this code was achieved by puncturing one of its constituent codes.
Mohammad Abu Hanif, Sina Vafi
doaj   +1 more source

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