Results 51 to 60 of about 2,636,497 (234)

Soft Iterative Decoding Algorithms for Rateless Codes in Satellite Systems

open access: yesAlgorithms, 2019
The satellite system is one of the most efficient means for broadcasting due to its wide service coverage as well as the fact that it can provide high data rate services by using high frequency bands.
Meixiang Zhang, Satya Chan, Sooyoung Kim
doaj   +1 more source

Bit‐Error‐Rate Analysis of Raptor Codes over Rician Fading Channels

open access: yesJournal of Electrical and Computer Engineering, Volume 2020, Issue 1, 2020., 2020
The bit‐error‐rate expressions of nonsystematic Raptor (NR) codes and systematic Raptor (SR) codes over Rician fading channels are first derived using a Gaussian approximation (GA) approach. These BER expressions provide a significant reduction in computational complexity for analyzing system performance when compared with simulation and discretized ...
Jingke Dai, Cesare F. Valenti
wiley   +1 more source

Applying a rateless code in content delivery networks

open access: yes, 2017
Content delivery network (CDN) allows internet providers to locate their services, to map their coverage into networks without necessarily to own them. CDN is part of the current internet infrastructures, supporting multi server applications especially ...
Suherman   +3 more
semanticscholar   +1 more source

An Efficient Design of Systematic Rateless Codes

open access: yesWireless Communications and Mobile Computing, Volume 2020, Issue 1, 2020., 2020
The asymptotic performance of systematic rateless codes is first analysed using Gaussian approximation (GA) based on mutual information, which provides more accurate decoding thresholds than the method based on message mean. A modified linear program (LP) algorithm is proposed, where two key parameters are precomputed to efficiently search degree ...
Jingke Dai   +4 more
wiley   +1 more source

Rateless coding transmission over multi-state dying erasure channel for SATCOM

open access: yesEURASIP Journal on Wireless Communications and Networking, 2017
Satellite communication (SATCOM) systems have attracted great attention from academic and industrial communities in recent years, and huge amount of data delivery over satellite downlinks is considered as a promising service in emerging 5G networks, such
Shushi Gu   +3 more
doaj   +1 more source

Network Coding as Enabler for Achieving URLLC Under TCP and UDP Environments: A Survey

open access: yesIEEE Access, 2023
In an era of rapidly evolving technology, the pursuit of higher data rates, extremely low latency, and robust reliability is becoming increasingly crucial.
Patrick Enenche, Dong Ho Kim, Dongho You
doaj   +1 more source

Analysis and Design of Systematic Rateless Codes in FH/BFSK System with Interference

open access: yesMobile Information Systems, Volume 2020, Issue 1, 2020., 2020
The asymptotic analysis of systematic rateless codes in frequency hopping (FH) systems with interference is first provided using discretized density evolution (DDE) and compared with the traditional fixed‐rate scheme. A simplified analysis with Gaussian assumption of initial message is proposed in the worst case of interference, which has much lower ...
Jingke Dai   +4 more
wiley   +1 more source

Rateless Coded Multiplexing for Downlink Transmission With Two Users: Performance Analysis and System Design

open access: yesIEEE Access, 2019
This paper presents a non-orthogonal multiplexing scheme using the concept of rateless coding for a downlink broadcast scheme with two users. The proposed approach does not require the inclusion of successive interference cancellation (SIC) techniques ...
Yen-Ming Chen   +2 more
doaj   +1 more source

Design of Improved BP Decoders and Corresponding LT Code Degree Distribution for AWGN Channels

open access: yesWireless Communications and Mobile Computing, Volume 2020, Issue 1, 2020., 2020
This paper presents the performance of a hard decision belief propagation (HDBP) decoder used for Luby transform (LT) codes over additive white Gaussian noise channels; subsequently, three improved HDBP decoders are proposed. We first analyze the performance improvement of the sorted ripple and delayed decoding process in a HDBP decoder; subsequently ...
Lei Zhang, Li Su, Chaoyun Song
wiley   +1 more source

Superposition Spinal Codes With Unequal Error Protection Property

open access: yesIEEE Access, 2017
In this paper, we propose a rateless superposition spinal code for binary erasure channel, which can provide unequal error protection (UEP) and unequal recovery time (URT) properties.
Xiaopu YU, Ying Li, Weiqiang Yang
doaj   +1 more source

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