Results 91 to 100 of about 208,509 (216)

A Supervised Learning Method for High‐Performance Channel State Information Estimation

open access: yesIET Communications, Volume 20, Issue 1, January/December 2026.
This paper proposes a deep neural network (DNN)‐based method for channel state information (CSI) estimation, incorporating a Discrete Fourier Transform (DFT) step to reduce noise impact and improve learning accuracy. Simulation results demonstrate that the proposed method achieves superior channel estimation performance, particularly in noisy wireless ...
Tianle Han, Yongwei Zhang, Murat Temiz
wiley   +1 more source

EVALUATION OF OPTIMAL TRANSMIT POWER IN WIRELESS SENSOR NETWORKS IN PRESENCE OF RAYLEIGH FADING [PDF]

open access: yesICTACT Journal on Communication Technology, 2010
Design of an energy efficient wireless sensor network (WSN) has emerged as an important research area. Minimizing energy consumption is the primary objective for WSN. WSN is usually characterized by tiny size, low cost and low transmission power.
Arnab Nandi, Sumit Kundu
doaj  

Performance analysis of space-time block-coded multitone CDMA system

open access: yesTongxin xuebao, 2007
A space-time block-coded multitone code-division multiple-access(STBC MT-CDMA) system was proposed.The uplink bit error rate(BER) performance of the proposed system with maximum ratio combining(MRC) was theoretically analyzed in a multipath fading ...
YANG Wei1, WANG Xin-sheng1
doaj   +2 more sources

Error probability and capacity analysis of generalised pre-coding aided spatial modulation

open access: yes, 2015
The recently proposed multiple input multiple output (MIMO) transmission scheme termed as generalized pre-coding aided spatial modulation (GPSM) is analyzed, where the key idea is that a particular subset of receive antennas is activated and the specific
Hanzo, Lajos   +2 more
core   +1 more source

Iterative H.264 Source and Channel Decoding Using Sphere Packing Modulation Aided Layered Steered Space-Time Codes

open access: yes, 2010
The conventional two-stage turbo-detection schemes generally suffer from a Bit Error Rate (BER) floor. In this paper we circumvent this deficiency by proposing a three-stage turbo detected Sphere Packing (SP) modulation aided Layered Steered Space-Time ...
Hanzo, Lajos, Minallah, Nasru
core   +1 more source

Design and Implementation of a Chaotic Scheme in Additive White Gaussian Noise Channel

open access: yesJournal of Computer Networks and Communications, 2016
A new chaotic scheme named Flipped Chaotic On-Off Keying (FCOOK) is proposed for binary transmission. In FCOOK, the low correlation value between the stationary signal and its mirrored version is utilized.
Nizar Al Bassam, Oday Jerew
doaj   +1 more source

Differential spatial modulation for high-rate transmission systems

open access: yesEURASIP Journal on Wireless Communications and Networking, 2018
This paper introduces a new differential spatial modulation (DSM) scheme which subsumes both the previously introduced DSM and high-rate spatial modulation (HR-SM) for wireless multiple input multiple output (MIMO) transmission. By combining the codeword
Thu Phuong Nguyen   +3 more
doaj   +1 more source

4×170 Gbit/s DWDM/OTDM transmission using only one quantum dash Fabry Perot mode-locked laser

open access: yes, 2010
oral session 6.C "High Bit-Rate Transmission"International audienceWe demonstrate a 4×170 Gbit/s DWDM/OTDM transmission experiment using only one quantum dash Fabry-Perot mode-locked laser.
Bramerie, Laurent   +5 more
core   +3 more sources

PERANCANGAN SIMULASI PENGKODEAN HAMMING (7,4) UNTUK MENGHITUNG BIT ERROR RATE (BER) PADA BINARY SYMETRIC CHANNEL

open access: yesJURNAL TEKNIK INFORMATIKA, 2014
Seiring perkembangan zaman, komputer semakin dibutuhkan dalam kehidupan sehari-hari, baik pada bidang akademis maupun bidang non-akademis. Komunikasi bisa juga mempengaruhi proses informasi itu bisa disampaikan dengan baik dan tepat. Komunikasi yang dilakukan dengan melakukan proses pengiriman data dari komputer ke komputer lain dalam suatu jaringan ...
openaire   +2 more sources

Block Markov superposition transmission over turbulence channels in outdoor optical wireless communication

open access: yesTongxin xuebao, 2017
Based on the equivalent genie-aided system,the bit-error rate of the block Markov superposition transmission system was analyzed and the union bound of the bit-error rate of the genie-aided system was derived.When the bit-error rate was extremely low at ...
Jin-shun ZHU, Xiao MA
doaj   +2 more sources

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