Results 41 to 50 of about 1,432,277 (142)
New High Performance Deterministic Interleavers for Turbo Codes
Advances in Electrical and Computer Engineering, 2010 Turbo codes offer extraordinary performance, especially at low signal to noise ratios, due to a low multiplicity of low weight code words. The interleaver design is critical in order to realize an apparent randomness of the code, thus further enhancing
TRIFINA, L. +4 more
doaj +1 more source
, 2006 —The achievable performance of channel coded spacetime trellis (STT) codes and space-time block (STB) codes transmitted over wideband channels is studied in the context of schemes having an effective throughput of 2 bits/symbol (BPS) and 3 BPS.
Hanzo, L., Liew, T.H.
core +1 more source
Evaluasi Kompleksitas Pendekodean MAP pada Kode BCH Berdasarkan Trellis Terbagi
Jurnal Nasional Teknik Elektro dan Teknologi Informasi, 2017 Soft decoding of block codes can be done by representing the block code into the trellis. One method of soft decoding commonly used is the maximum a posteriori probability (MAP).
Emir Husni, Dimas Pamungkas
doaj +1 more source
Self-Dual Convolutional Codes [PDF]
arXiv, 2022 This paper investigates the concept of self-dual convolutional code. We derive the basic properties of this interesting class of codes and we show how some of the techniques to construct self-dual linear block codes generalize to self-dual convolutional codes.
arxiv
Blind identification of an unknown interleaved convolutional code
, 2015 We give here an efficient method to reconstruct the block interleaver and recover the convolutional code when several noisy interleaved codewords are given. We reconstruct the block interleaver without assumption on its structure.
Tixier, Audrey
core +3 more sources
Code design with high rates based on quasi-orthogonal space-time block code
Tongxin xuebao, 2011 In order to meet the needs of high-speed and large-capacity in communication system,the novel non-orthogonal space-time block code with code rates 2 and 1.5 were proposed,respectively.The simplified conditional maximum-likelihood algorithm is adopted to ...
WANG An-guo, SHEN Qiong, NIE Zhong-er
doaj +2 more sources
A vector quantization approach to universal noiseless coding and quantization [PDF]
, 1996 A two-stage code is a block code in which each block of data is coded in two stages: the first stage codes the identity of a block code among a collection of codes, and the second stage codes the data using the identified code.
Chou, Philip A. +2 more
core
Quantum Channel Capacity of Very Noisy Channels
, 1998 We present a family of additive quantum error-correcting codes whose capacities exceeds that of quantum random coding (hashing) for very noisy channels. These codes provide non-zero capacity in a depolarizing channel for fidelity parameters $f$ when $f> .
A. Ekert +26 more
core +2 more sources
Differential Space-Time Block Code Modulation for DS-CDMA Systems
EURASIP Journal on Advances in Signal Processing, 2002 A differential space-time block code (DSTBC) modulation scheme is used to improve the performance of DS-CDMA systems in fast time-dispersive fading channels. The resulting scheme is referred to as the differential space-time block code modulation for DS-
Liu Jianhua, Li Jian, Larsson Erik G
doaj +1 more source
$ε$-MSR Codes: Contacting Fewer Code Blocks for Exact Repair [PDF]
arXiv, 2018 $\epsilon$-Minimum Storage Regenerating ($\epsilon$-MSR) codes form a special class of Maximum Distance Separable (MDS) codes, providing mechanisms for exact regeneration of a single code block in their codewords by downloading slighly sub-optimal amount of information from the remaining code blocks.
arxiv