Results 81 to 90 of about 100,134 (209)
Stochastic Analysis of Turbo Decoding
IEEE Transactions on Information Theory, 2005 This paper proposes a stochastic framework for dynamic modeling and analysis of turbo decoding. By modeling the input and output signals of a turbo decoder as random processes, we prove that these signals become ergodic when the block size of the code becomes very large.
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A Turbo Detection and Sphere-Packing-Modulation-Aided Space-Time Coding Scheme
, 2007 A recently proposed space-time block-coding (STBC) signal-construction method that combines orthogonal design with sphere packing (SP), referred to here as STBC-SP, has shown useful performance improvements over Alamouti’s conventional orthogonal design.
YEAP, B-J., Hanzo, L, Alamri, O
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EURASIP Journal on Advances in Signal Processing, 2005 Turbo-receivers reduce the effect of the interference-limited propagation channels through the iterative exchange of information between the front-end receiver and the channel decoder.
Leszek Szczeciński +1 more
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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
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Iterative Near-Maximum-Likelihood Detection in Rank-Deficient Downlink SDMA Systems
, 2008 —In this paper, a precoded and iteratively detected downlink multiuser system is proposed, which is capable of operating in rankdeficient scenarios, when the number of transmitters exceeds the number of receivers.
Wei, C.Y. +3 more
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EURASIP Journal on Advances in Signal Processing, 2006 In this contribution we propose an analogue receiver that can perform turbo detection in MIMO systems. We present the case for a receiver that is built from nonlinear analogue devices, which perform detection in a "free-flow" network (no notion of ...
McNamara Darren +3 more
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The geometry of turbo-decoding dynamics [PDF]
IEEE Transactions on Information Theory, 2000 Summary: The spectacular performance offered by turbo codes sparked intense interest in them. A considerable amount of research has simplified, formalized, and extended the ideas inherent in the original turbo code construction. Nevertheless, the nature of the relatively simple ad hoc turbo-decoding algorithm has remained something of a mystery.
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Tongxin xuebao, 2006 A new simple iterative channel estimation algorithm for quasi-coherent demodulation Turbo coded GMSK signals was presented. Based on the iterative decoding principle of Turbo code, the algorithm improved the channel esti- mation accuracy using output of ...
WU Tuan-feng, YANG Xi-gen
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VLSI Architectures for Sliding-Window-Based Space-Time Turbo Trellis Code Decoders
Journal of Electrical and Computer Engineering, 2012 The VLSI implementation of SISO-MAP decoders used for traditional iterative turbo coding has been investigated in the literature. In this paper, a complete architectural model of a space-time turbo code receiver that includes elementary decoders is ...
Georgios Passas, Steven Freear
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An optimized-hierarchy-aided approximate log-MAP detector for MIMO systems
, 2007 In this paper we propose a novel Space Division Multiplexing (SDM) detection method. The proposed technique constitutes a list search method and may be regarded as an advanced extension of the Sphere Decoder (SD).
Akhtman, J. +3 more
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