Results 61 to 70 of about 6,805,792 (197)
Sum-rate maximisation comparison using incremental approaches with different constraints [PDF]
, 2009 In this work, the problem of rate maximisation of multichannel systems is considered. Two greedy allocation approaches using power (GPA) and bit (GBA) loading schemes with a slight difference in design constraints that aiming to maximise the overall ...
Al-Hanafy, Waleed, Weiss, S.
core +3 more sources
Multilevel cyclic shift index differential chaos shift keying system for high data rate transmission
IET Communications, 2023 This paper proposes a multilevel cyclic shift index modulation aided differential chaotic shift keying (MCSI‐DCSK) system to improve data rate and energy efficiency.
Zixian Lin, Weikai Xu, Lin Wang
doaj +1 more source
Towards a new toolbox of statistical primitives: Optimally estimating the mean of a distribution
AI Magazine, Volume 47, Issue 4, Winter 2026.Abstract Mean estimation is perhaps the most fundamental building block of statistics, yet the tools we use are surprisingly brittle. For example, the conventional method of using the sample mean can be made arbitrarily bad with a single extreme data point.
Jasper C. H. Lee
wiley +1 more source
Nanophotonics, Volume 15, Issue 19, 13 October 2026.An optically addressed nested Fourier metasurface is presented for programmable multidimensional diffraction routing without electrical interconnects. Local Fourier‐mode engineering combined with global superlattice diffraction enables on‐demand reconfigurable routing.
Jing Guo +11 more
wiley +1 more source
International Journal of Computer Applications, 2014 In wireless communication systems antenna diversity is an important technique to combat deep fading to improve the system performance and to increase the channel capacity. The fast and random fluctuation of the received signal strength is usually called fading.
Subham Bachhar +2 more
openaire +1 more source
Cooperative MIMO Communication at Wireless Sensor Network: An Error Correcting Code Approach
Sensors, 2011 Cooperative communication in wireless sensor network (WSN) explores the energy efficient wireless communication schemes between multiple sensors and data gathering node (DGN) by exploiting multiple input multiple output (MIMO) and multiple input single ...
Mohammad Rakibul Islam, Young Shin Han
doaj +1 more source
Comb‐Driven Coherent Optical Transmitter for Scalable DWDM Interconnects
Laser &Photonics Reviews, Volume 20, Issue 19, 7 October 2026.A comb‐driven coherent optical transmitter on a Si/SiN platform enables scalable DWDM interconnects by integrating ultra‐compact microring‐assisted modulators and interleavers. High‐baud coherent signaling achieves 400 Gb/s per wavelength and >$>$1 Tb/s multi‐channel transmission, with projected >$>$10 Tb/s per fiber, offering a path toward energy ...
Alireza Geravand +11 more
wiley +1 more source
Adaptive Minimum Bit Error Rate Beamforming Assisted Receiver for QPSK Wireless Communication
, 2005 This paper considers interference limited communication systems where the desired user and interfering users are symbol-synchronized. A novel adaptive beamforming technique is proposed for quadrature phase shift keying (QPSK) receiver based directly on ...
Ahmad, N.N. +3 more
core +1 more source
Muthanna Journal of Engineering and TechnologyWireless communication networks often face challenges from carrier and symbol interference, leading to degraded signal quality and reduced data transmission efficiency.
NABIL BABAN, NABIL BABAN
doaj +2 more sources
Improving 3D-Turbo Code's BER Performance with a BICM System over Rayleigh Fading Channel [PDF]
Radioengineering, 2016 Classical Turbo code suffers from high error floor due to its small Minimum Hamming Distance (MHD). Newly-proposed 3D-Turbo code can effectively increase the MHD and achieve a lower error floor by adding a rate-1 post encoder.
R. Yao, Y. Zhu, J. Xu, F. Gao, L. Wang
doaj