Results 51 to 60 of about 235,653 (168)

NOISE IMMUNITY CODES DISPLAY IN RELIABILITY CORDINATES

open access: yesInformation and Telecommunication Sciences, 2015
Background. Noise immunity codes are widely used in the modern telecommunication systems. The methodology of properties count of convolutional codes, offered by authors before, to the equivalent parameters of block codes gave the opportunity to use the ...
Leonid Uryvskyi, Anton Pieshkin
doaj   +1 more source

Full-diversity design criterion for multi-user STBC based on integer-forcing detection

open access: yesTongxin xuebao, 2019
Multi-user space time block code systems have the problem of high decoding complexity.To ensure good system performance with low decoding complexity at the same time,low complexity integer-forcing (IF) detection algorithm was applied to multi-user space ...
Guoquan LI   +5 more
doaj   +2 more sources

New High Performance Deterministic Interleavers for Turbo Codes

open access: yesAdvances 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

Code design with high rates based on quasi-orthogonal space-time block code

open access: yesTongxin 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

Differential Space-Time Block Code Modulation for DS-CDMA Systems

open access: yesEURASIP 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

Evaluasi Kompleksitas Pendekodean MAP pada Kode BCH Berdasarkan Trellis Terbagi

open access: yesJurnal 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

Low-Complexity Decoding of Block Turbo-Coded System with Antenna Diversity

open access: yesEURASIP Journal on Advances in Signal Processing, 2003
The goal of this paper is to reduce the decoding complexity of space-time block turbo-coded system with low performance degradation. Two block turbo-coded systems with antenna diversity are considered.
Chen Yanni, Parhi Keshab K
doaj   +1 more source

Interleaver Design for Parallel Concatenated Block Codes With Arbitrary Lengths

open access: yesIEEE Access
Parallel Concatenated Block (PCB) codes are conventionally constituted by two identical linear systematic block codes, as component codes, linked by an interleaver. In general, the PCB code’s interleaver length (or message length) is the square of
Vijayasri Sundarapuram Soundayan   +1 more
doaj   +1 more source

Analyzing spatial aggregation error in statistical models of late-stage cancer risk: a Monte Carlo simulation approach

open access: yesInternational Journal of Health Geographics, 2010
Purpose This paper examines the effect of spatial aggregation error on statistical estimates of the association between spatial access to health care and late-stage cancer.
Wang Fahui, McLafferty Sara, Luo Lan
doaj   +1 more source

Block-Wise Non-Malleable Codes

open access: yes, 2015
Non-malleable codes, introduced by Dziembowski, Pietrzak, and Wichs (ICS'10) provide the guarantee that if a codeword c of a message m, is modified by a tampering function f to c', then c' either decodes to m or to "something unrelated" to m. In recent literature, a lot of focus has been on explicitly constructing such codes against a large and natural
Chandran, Nishanth   +4 more
openaire   +4 more sources

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