Results 101 to 110 of about 44,063 (255)

Achieving Secrecy Capacity of the Gaussian Wiretap Channel with Polar Lattices

open access: yes, 2017
In this work, an explicit wiretap coding scheme based on polar lattices is proposed to achieve the secrecy capacity of the additive white Gaussian noise (AWGN) wiretap channel.
Ling, Cong, Liu, Ling, Yan, Yanfei
core   +1 more source

On the AWGN MAC With Imperfect Feedback [PDF]

open access: yesIEEE Transactions on Information Theory, 2010
New achievable rate regions are derived for the two-user additive white Gaussian multiple-access channel with noisy feedback. The regions exhibit the following two properties. Irrespective of the (finite) Gaussian feedback-noise variances, the regions include rate points that lie outside the no-feedback capacity region, and when the feedback-noise ...
Amos Lapidoth, Michèle Wigger
openaire   +1 more source

Feedback Approach for the Relay Channel with Noisy Feedback and Its Security Analysis

open access: yesEntropy
Relay channels capture the essence of several important communication scenarios such as sensor network and satellite communication. In this paper, first, we propose an efficient coding scheme for an additive white Gaussian noise (AWGN) relay channel in ...
Rong Hu, Haonan Zhang, Huan Yang
doaj   +1 more source

Constellation Design for Channels Affected by Phase Noise

open access: yes, 2012
In this paper we optimize constellation sets to be used for channels affected by phase noise. The main objective is to maximize the achievable mutual information of the constellation under a given power constraint.
Kayhan, Farbod, Montorsi, Guido
core   +1 more source

AN IMPROVED PREDICTION OF DCT-BASED IMAGE FILTERS EFFICIENCY USING REGRESSION ANALYSIS

open access: yesInformation and Telecommunication Sciences, 2014
Efficiency of DCT-based filters for a wide-class of images is investigated. The study is carried out for additive white Gaussian noise (AWGN) case with several intensity levels. Local DCT-based filter is used as basic denoising technique.
Oleksii S. Rubel, Volodymyr V. Lukin
doaj   +1 more source

Anti-frequency-shift packet detection for D2D power-saving communications over Wi-Fi network

open access: yesTongxin xuebao, 2016
An efficient packet detection scheme based on Wi-Fi interface was proposed.It was implemented by employing a novel normalized factor as a denominator in OFDM symbol synchronization-timing metric.Compared to the old-tradition schemes,the proposed scheme ...
Fan YANG, Xi LIANG, Ke-yu LONG, Li JIANG
doaj   +2 more sources

Modified CC-PEG Algorithm for Protograph-Based QC-LDPC Codes Over Non-Uniform Channel

open access: yesIEEE Access
In this paper, we propose the modified cycle-concentrating progressive-edge-growth (CC-PEG) algorithm for lifting protograph-based quasi-cyclic low-density parity-check (QC-LDPC) codes over the non-uniform additive white Gaussian noise (AWGN) channel. By
Hyeon-Bhin Lee, Jae-Won Kim
doaj   +1 more source

Efficient Hybrid Iterative Method for Signal Detection in Massive MIMO Uplink System over AWGN Channel [PDF]

open access: gold, 2022
Zelalem Melak Gebeyehu   +3 more
openalex   +1 more source

Robust quaternary fountain codes in AWGN interference

open access: yesIET Communications, 2018
Luby transform (LT) codes have received less attention in larger non‐binary fields. Robust soliton distribution (RSD) was designed to provide universal optimality over the binary erasure channel in terms of minimising the overhead.
James Spencer   +2 more
openaire   +1 more source

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