Results 21 to 30 of about 20,900 (152)
Performance Evaluation and Enhancement of Third Generation Mobile System [PDF]
Engineering and Technology Journal, 2005 The goal for the next generation mobile communication system is to seamlessly integrate a wide variety of communication services such as high speed data transmission , video and multimedia traffic as well as voice signal . The technology needed to tackle
Muhanned alfarras
doaj +1 more source
Performance of JPEG Image Transmission Using Proposed Asymmetric Turbo Code
EURASIP Journal on Advances in Signal Processing, 2007 This paper gives the results of a simulation study on the performance of JPEG image transmission over AWGN and Rayleigh fading channels using typical and proposed asymmetric turbo codes for error control coding.
Mohamad Yusoff Alias +2 more
doaj +2 more sources
Haberleşme Sistemlerinde Turbo Kodlama ve Turbo İlkesinin Bazı Pratik Uygulamaları
Düzce Üniversitesi Bilim ve Teknoloji Dergisi, 2014 söz etmiştir. Shannon, veri iletim hızı içi teorik bir sınır tanımlamış ve Shannon’dan günümüze kadar bu sınıra yaklaşma çabaları sürmüştür. Shannon’dan sonra çok sayıda etkin kodlama ve kod çözme teknikleri bulunmuş olmasına rağmen, 90’lı yılların ...
Selman KULAÇ, Murat Hüsnü SAZLI
doaj
Tongxin xuebao, 2005 On the basis of existing full-diversity space-time block coding （STBC）, two full-rate complex orthogonal STBC schemes for multiple antennas were proposed.
YU Xiang-bin1 +2 more
doaj +2 more sources
Effect of unequal power allocation in turbo coded multi-route multi-hop networks
Journal of Telecommunications and Information Technology, 2006 Multi-hop ad hoc networks are promising candidates for next generation mobile communications. They have sufficient channel capacity to achieve high data rate transmission for large number of users. One advantage of multi-hop networks is to realize multi-
Tadahiro Wada +4 more
doaj +1 more source
Turbo codes and turbo algorithms
Journal of Communications Software and Systems, 2017 In the first part of this paper, several basic ideas that prompted the coming of turbo codes are commented on. We then present some personal points of view on the main advances obtained in past years on turbo coding and decoding such as the circular trellis termination of recursive systematic convolutional codes and double-binary turbo codes associated
Berrou, Claude +2 more
openaire +3 more sources
Interleaving Gains for Receive Diversity Schemes of Distributed Turbo Codes in Wireless Half–Duplex Relay Channels [PDF]
Radioengineering, 2015 This paper proposes the interleaving gain in two different distributed turbo-coding schemes: Distributed Turbo Codes (DTC) and Distributed Multiple Turbo Codes (DMTC) for half-duplex relay system as an extension of our previous work on turbo coding ...
Tamer H. M. Soliman +2 more
doaj
Iterative estimation method for random interleaver of Turbo codes
Tongxin xuebao, 2015 Channel coding parameter analysis meant reversely analyzing and estimating the coding parameters,and was one of the key techniques for intelligent communication,information interception and so on.Since Turbo codes were widely used in communication ...
Jun LIU, Jing LI, Pei-dong YU
doaj +2 more sources
A MODIFIED UNEQUAL POWER ALLOCATION (UPA) SCHEME FOR PERFORMANCE ENHANCEMENT IN BIT REPETITION TURBO CODES IN HIGH SPEED DOWNLINK PACKET ACCESS (HSDPA) SYSTEM [PDF]
Journal of Engineering Science and Technology, 2015 In this paper, a modified optimal power allocation scheme for different bits in turbo encoder has been proposed to improve the performance of Turbo Codes system in High Speed Downlink Packet Access (HSDPA) service. In a typical turbo code in HSDPA system,
B. BALAMURALITHARA
doaj
On the Performance of Interleavers for Quantum Turbo Codes
Entropy, 2019 Quantum turbo codes (QTC) have shown excellent error correction capabilities in the setting of quantum communication, achieving a performance less than 1 dB away from their corresponding hashing bounds.
Josu Etxezarreta Martinez +2 more
doaj +1 more source