Results 91 to 100 of about 13,125 (210)
Concatenated Turbo/LDPC codes for deep space communications: performance and implementation [PDF]
, 2013 Deep space communications require error correction codes able to reach extremely low bit-error-rates, possibly with a steep waterfall region and without error floor. Several schemes have been proposed in the literature to achieve these goals.
Condo, Carlo
core
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
doaj +1 more source
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
VLSI Design of a Turbo Decoder [PDF]
A very-large-scale-integrated-circuit (VLSI) turbo decoder has been designed to serve as a compact, high-throughput, low-power, lightweight decoder core of a receiver in a data-communication system.
Fang, Wai-Chi
core +1 more source
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
doaj +2 more sources
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
doaj +1 more source
Implementation and performance of parallellised turbo decoders
IET Communications, 2011 In this study, the authors discuss the implementation of a low latency decoding algorithm for turbo codes and repeat accumulate codes and compare the implementation results in terms of maximum available clock speed, resource consumption, error correction performance and the data (information bit) rate.
Erdin, E., Kilcioglu, C., Yilmaz, A. O.
openaire +2 more sources
Inter-layer turbo coded unequal error protection for multi-layer video transmission
In layered video streaming, the enhancement layers (ELs) must be discarded by the video decoder, when the base layer (BL) is corrupted or lost due to channel impairments.
El Hajjar, Mohammed +2 more
core
, 2005 A jointly optimised turbo transceiver capable of providing unequal error protection is proposed for employment in an MPEG-4 aided audio transceiver. The transceiver advocated consists of Space-Time Trellis Coding (STTC), Trellis Coded Modulation (TCM ...
Hanzo, L., Ng, S.X., Othman, N.S.
core
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 +1 more source