Results 121 to 130 of about 12,374 (228)

Turbo Detection of Symbol-Based Non-Binary LDPC-Coded Space-time Signals using Sphere Packing Modulation

open access: yes, 2005
A recently proposed space-time signal construction method that combines orthogonal design with sphere packing, referred to here as (STBC-SP), has shown useful performance improvements over Alamouti’s conventional orthogonal design.
Alamri, O.R.   +3 more
core  

Differentially Encoded LDPC Codes—Part II: General Case and Code Optimization

open access: yesEURASIP Journal on Wireless Communications and Networking, 2008
This two-part series of papers studies the theory and practice of differentially encoded low-density parity-check (DE-LDPC) codes, especially in the context of noncoherent detection.
Li (Tiffany) Jing
doaj  

LDPC Codes [PDF]

open access: yes, 2017
Martin Tomlinson   +4 more
openaire   +2 more sources

A Turbo-Detection Aided Serially Concatenated MPEG-4/TCM Videophone Transceiver

open access: yes, 2004
A Turbo-detection aided serially concatenated inner Trellis Coded Modulation (TCM) scheme is combined with four different outer codes, namely with a Reversible Variable Length Code (RVLC), a Non-Systematic Convolutional (NSC) code a Recursive Systematic ...
Ng, S. X.   +3 more
core  

LDPC codes

open access: yes, 2012
The aim of this thesis are problematics about LDPC codes. There are described metods to create parity check matrix, where are important structured metods using finite geometry: Euclidean geometry and projectice geometry.
Hrouza, Ondřej
core  

Hardware-Aware GA-Based Regular Quasi-Cyclic LDPC Code Search Algorithm

open access: yes, 2007
Gallager’s Low-Density Parity-Check (LDPC) codes have recently received a lot of attention because of their excellent performance and low decoding complexity.
黎煥昇, Li, Huan-Sheng
core  

Scalable High HUE LDPC Decoder Architecture Design

open access: yes, 2007
Low-density parity check (LDPC) codes have been shown that it is a strong competitor of Turbo codes. LDPC codes offer excellent coding gain and provide elegant low computation complexity when comparing with Turbo codes. The complex routing nature of LDPC
簡義興, Chien, Yi-hsing
core  

Network-on-Chip Optimization: as shown through a novel LDPC Decoder Design

open access: yes, 2010
In this work we describe the network-on-chip (NoC) simulator, which fills the gap between architectural level and circuit level NoC simulation. The core is a fast, high level transaction-based NoC simulator, which accesses carefully compiled power ...
Mineo, Christopher Alexander
core  

VLSI Designs of LDPC Codec for IEEE 802.16e System

open access: yes, 2007
在新一代IEEE 802.16e標準的無線通訊系統中,除提供定點通訊的操作模式外,更增加有限的可移動性,尤其是在車速移動下進行高速率資料傳輸和提供語音功能。除此,其特色是能涵蓋更遠的傳輸距離、提供更大的頻寬,以及提升頻帶使用率。為了增加傳輸的可靠性,低密度奇偶校驗編碼(low-density parity-check, LDPC)成為IEEE 802.16e標準中極為重要通道編碼(channel coding)的模組,提供更強大的錯誤更正能力。 低密度奇偶校驗編碼最早是由Robert ...
施信毓, Shi, Xin-Yu
core  

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