Results 21 to 30 of about 843,086 (287)

Low latency low power bit flipping algorithms for LDPC decoding [PDF]

open access: yes, 2010
Low Density Parity Check (LDPC) codes have been adopted in a number of wired and wireless communication standards due to their improved error correcting ability and relatively simple decoder structure.
Ahmed, I   +5 more
core   +3 more sources

RZ Line Coding Scheme With Direct Laser Modulation for Upgrading Optical Transmission Systems

open access: yesOpen Engineering, 2020
This study reports the efficient use of a direct laser modulated response measured with the return-to-zero coding scheme in optical transmission systems.
El-Hageen Hazem M.   +2 more
doaj   +1 more source

Time Domain Equalizer Design Using Bit Error Rate Minimization for UWB Systems

open access: yesEURASIP Journal on Wireless Communications and Networking, 2009
Ultra-wideband (UWB) communication systems occupy huge bandwidths with very low power spectral densities. This feature makes the UWB channels highly rich in resolvable multipaths.
Syed Imtiaz Husain   +3 more
doaj   +2 more sources

Orthogonal Space Time Block Coding for Spatial Pulse Position Modulation

open access: yesGuangtongxin yanjiu, 2021
The system performance of Spatial Pulse Position Modulation (SPPM) is poor in turbulent channels. In order to solve this problem, the bit complement orthogonal space time Block Coding for Spatial Pulse Position Modulation (BCOSTBCSPPM) is proposed by ...
Zhong-yang MAO   +5 more
doaj   +1 more source

MIMO Transceivers With Decision Feedback and Bit Loading: Theory and Optimization [PDF]

open access: yes, 2010
This paper considers MIMO transceivers with linear precoders and decision feedback equalizers (DFEs), with bit allocation at the transmitter. Zero-forcing (ZF) is assumed.
Chen, Chun-Yang   +2 more
core   +2 more sources

Joint Coding Design based on CSK and FSM

open access: yesGuangtongxin yanjiu, 2021
In the Visible Light Communication (VLC) system based on circle Color Shift Keying (CSK) modulation constellation, the bit error rate performance is poorer under certain number of modulation order.
Jia-hui LI, Zong-yan LI, Shi-yin LI
doaj   +3 more sources

Perbandingan Bit Error Rate Kode Reed-Solomon dengan Kode Bose-Chaudhuri-Hocquenghem Menggunakan Modulasi 32-FSK

open access: yesJurnal Nasional Teknik Elektro, 2016
Reed-Solomon (RS) Code and Bose-Chaudhuri-Hocquenghem (BCH) code are cyclic block codes class of error-correting code.Error correcting code is required in communicaton system to reduce error of transmitted information from transmitter to receiver.
Eva Yovita Dwi Utami   +2 more
doaj   +3 more sources

Determining the optimal decision delay parameter for a linear equalizer

open access: yes, 2005
The achievable bit error rate of a linear equalizer is crucially determined by the choice of a decision delay parameter. This brief paper presents a simple method for the efficient determination of the optimal decision delay parameter that results in the
Chen, S., Chng, E.S.
core   +1 more source

Error Rates of the Maximum-Likelihood Detector for Arbitrary Constellations: Convex/Concave Behavior and Applications [PDF]

open access: yes, 2009
Motivated by a recent surge of interest in convex optimization techniques, convexity/concavity properties of error rates of the maximum likelihood detector operating in the AWGN channel are studied and extended to frequency-flat slow-fading channels ...
François Gagnon   +4 more
core   +4 more sources

Spectrally Efficient DMT Operation With BER-Informed Dynamic Bit and Power Loading

open access: yesIEEE Access, 2022
This paper elucidates the relative benefits of bit loading and power loading for discrete multitone (DMT) modulation over wireline links. There is considerable variability in the use of bit and power loading in recent research on DMT for wireline ...
Behraz Vatankhahghadim   +3 more
doaj   +1 more source

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