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While long polar codes can achieve the capacity of arbitrary binary-input discrete memoryless channels when decoded by a low complexity successive cancelation (SC) algorithm, the error performance of the SC algorithm is inferior for polar…

硬件体系结构 · 计算机科学 2016-11-17 Jun Lin , Chenrong Xiong , Zhiyuan Yan

Identifying the unknown convolutional code corresponding to the given intercepted data is an important problem in military surveillance and in wireless communication. While a variety of code identification algorithms are available in the…

信息论 · 计算机科学 2025-07-01 Harshvardhan Pandey , Pragya Khanna , Arti Yardi

Drones have recently emerged as a faster, safer, and cost-efficient way for last-mile deliveries of parcels, particularly for urgent medical deliveries highlighted during the pandemic. This paper addresses a new challenge of multi-parcel…

机器人学 · 计算机科学 2025-09-22 Chuhao Qin , Arun Narayanan , Evangelos Pournaras

Convolutional precoding in polarization-adjusted convolutional (PAC) codes can reduce the number of minimum weight codewords (a.k.a error coefficient) of polar codes. This can result in improving the error correction performance of (near)…

信息论 · 计算机科学 2022-12-02 Xinyi Gu , Mohammad Rowshan , Jinhong Yuan

Sparse recovery is widely applied in many fields, since many signals or vectors can be sparsely represented under some frames or dictionaries. Most of fast algorithms at present are based on solving $l^0$ or $l^1$ minimization problems and…

数值分析 · 数学 2019-03-06 Chong-Jun Li , Yi-Jun Zhong

For finite length polar codes, channel polarization leaves a significant number of channels not fully polarized. Adding a Cyclic Redundancy Check (CRC) to better protect information on the semi-polarized channels has already been…

信息论 · 计算机科学 2016-11-14 A. Elkelesh , M. Ebada , S. Cammerer , S. ten Brink

Motivated by streaming applications with stringent delay constraints, we consider the design of online network coding algorithms with timely delivery guarantees. Assuming that the sender is providing the same data to multiple receivers over…

信息论 · 计算机科学 2016-11-15 Joao Barros , Rui A. Costa , Daniele Munaretto , Joerg Widmer

The lower bound on the decoding error probability for the optimal code given a signal-to-noise ratio and a code rate are investigated in this letter for the reconfigurable intelligent surface (RIS) communication system over a Rician fading…

信息论 · 计算机科学 2023-06-28 Likun Sui , Zihuai Lin

An efficient decoding algorithm for horizontally u-interleaved LRPC codes is proposed and analyzed. Upper bounds on the decoding failure rate and the computational complexity of the algorithm are derived. It is shown that interleaving…

信息论 · 计算机科学 2019-08-29 Julian Renner , Thomas Jerkovits , Hannes Bartz

In most notions of locality in error correcting codes -- notably locally recoverable codes (LRCs) and locally decodable codes (LDCs) -- a decoder seeks to learn a single symbol of a message while looking at only a few symbols of the…

信息论 · 计算机科学 2018-02-06 Prasanna Ramakrishnan , Mary Wootters

Low-altitude wireless networks (LAWNs) have been envisioned as flexible and transformative platforms for enabling delay-sensitive control applications in Internet of Things (IoT) systems. In this work, we investigate the real-time wireless…

信号处理 · 电气工程与系统科学 2025-07-04 Haijia Jin , Jun Wu , Weijie Yuan , Ruizhi Ruan , Jiacheng Wang , Dusit Niyato , Dong In Kim , Abbas Jamalipour

The performance of short polar codes under successive cancellation (SC) and SC list (SCL) decoding is analyzed for the case where the decoder messages are coarsely quantized. This setting is of particular interest for applications requiring…

信息论 · 计算机科学 2020-09-14 Joachim Neu , Mustafa Cemil Coşkun , Gianluigi Liva

In this paper we propose a novel power adapted network coding (PANC) for a non-orthogonal multiple-access relay channel (MARC), where two sources transmit their information simultaneously to the destination with the help of a relay.…

信号处理 · 电气工程与系统科学 2020-03-03 Sha Wei , Jun Li , Wen Chen , Hang Su , Zihuai Lin , Branka Vucetic

Belief-propagation (BP) decoding for quantum low-density parity-check (QLDPC) codes is appealing due to its low complexity, yet it often exhibits convergence issues due to quantum degeneracy and short cycles that exist in the Tanner graph.…

信息论 · 计算机科学 2026-03-12 Mohsen Moradi , Vahid Nourozi , Salman Habib , David G. M. Mitchell

Error correction codes are a crucial part of the physical communication layer, ensuring the reliable transfer of data over noisy channels. The design of optimal linear block codes capable of being efficiently decoded is of major concern,…

信息论 · 计算机科学 2024-05-08 Yoni Choukroun , Lior Wolf

A Physical layer Network Coding (PNC) scheme is proposed for the $K$-user wireless Multiple Access Relay Channel (MARC), in which $K$ source nodes transmit their messages to the destination node $D$ with the help of a relay node $R.$ The…

信息论 · 计算机科学 2013-01-22 Vijayvaradharaj T. Muralidharan , B. Sundar Rajan

This paper considers a framework where data from correlated sources are transmitted with help of network coding in ad-hoc network topologies. The correlated data are encoded independently at sensors and network coding is employed in the…

网络与互联网体系结构 · 计算机科学 2015-03-19 Hyunggon Park , Nikolaos Thomos , Pascal Frossard

An adaptive distributed space-time coding (DSTC) scheme is proposed for two-hop cooperative MIMO networks. Linear minimum mean square error (MMSE) receive filters and adjustable code matrices are considered subject to a power constraint…

信息论 · 计算机科学 2016-11-17 T. Peng , R. C. de Lamare , A. Schmeink

We consider the problem of constructing an erasure code for storage over a network when the data sources are distributed. Specifically, we assume that there are n storage nodes with limited memory and k<n sources generating the data. We…

信息论 · 计算机科学 2016-11-15 Alexandros G. Dimakis , Vinod Prabhakaran , Kannan Ramchandran

Linear nested codes, where two or more sub-codes are nested in a global code, have been proposed as candidates for reliable multi-terminal communication. In this paper, we consider nested array-based spatially coupled low-density…

信息论 · 计算机科学 2021-02-23 Salman Habib , David G. M. Mitchell , Joerg Kliewer