Results 51 to 60 of about 878,777 (290)
Complex random matrices and Rayleigh channel capacity [PDF]
Communications in Information and Systems, 2003 The authors investigate the densities of the eigenvalues of complex central Wishart matrices as well as their applications to multiple input, multiple output channel capacity.
Tharmalingam Ratnarajah +2 more
openaire +1 more source
Spectral Reconstruction Using Broadband Inkjet‐Printed Optical Filters
Advanced Optical Materials, EarlyView.A proof‐of‐concept for a reconstructive spectrometer based on inkjet‐printed interferometric optical filters is demonstrated. Through adaptive encoding and robust post‐processing algorithms, spectral reconstruction is achieved over a 400 nm visible bandwidth at a fraction of the cost and complexity of typical encoders while maintaining high optical ...
Leonardo Baini +9 more
wiley +1 more source
Latency and Networking Aspects of Adaptive Modems over Slow Indoors Rayleigh Fading Channels
, 1999 Adaptive modulation exploits the time-variant channel capacity fluctuation of fading channels using a range of different modem modes. Specifically, no information is transmitted when the instantaneous channel signal-to-noise ratio (SNR) is low, and ...
J.M. Torrance +4 more
core +2 more sources
Improved model for multiple uncorrelated Rayleigh fading channels
Tongxin xuebao, 2007 An improved model for multiple uncorrelated Rayleigh channels was proposed.Compared with other models,this new model satisfied not only the stochastic characters of Rayleigh channel but also the uncorrelation between different fading channels.The ...
WANG Xin, FENG Guang-zeng
doaj +2 more sources
Доклады Белорусского государственного университета информатики и радиоэлектроники, 2019 An analysis of the Rayleigh scattering effect on the work of duplex single-fiber optical path without wavelength division multiplexing of counter channels using heterodyne detection was made in this paper. Characteristics of the Rayleigh scattering noise
V. N. Uryadov +3 more
doaj
Diversity Properties of Multiantenna Small Handheld Terminals
EURASIP Journal on Advances in Signal Processing, 2004 Experimental data are presented on the viability of multiple antennas on small mobile handsets, based on extensive measurement campaigns at 2.14 GHz with multiple base stations, indoors, from outdoor to indoor, and outdoors.
Wim A. Th. Kotterman +2 more
doaj +1 more source
Channel estimation for massive MIMO TDD systems assuming pilot contamination and flat fading
EURASIP Journal on Wireless Communications and Networking, 2018 Channel estimation is crucial for massive massive multiple-input multiple-output (MIMO) systems to scale up multi-user (MU) MIMO, providing great improvement in spectral and energy efficiency.
Felipe A. P. de Figueiredo +3 more
doaj +1 more source
Large Intelligent Surfaces Communicating Through Massive MIMO Rayleigh Fading Channels
Sensors, 2020 Large intelligent surfaces (LIS) promises not only to improve the signal to noise ratio, and spectral efficiency but also to reduce the energy consumption during the transmission.
Ricardo Coelho Ferreira +4 more
doaj +1 more source
, 2004 Iterative detection of Diagonal Block Space Time Trellis Codes (DBSTTCs), Trellis Coded Modulation (TCM) and Reversible Variable Length Codes (RVLCs) is proposed.
Ng, S. X., Hanzo, L., Guo, F.
core +1 more source
Functional Fibers in Soft Robotics: Advances in Material, Structural, and Systemic Tactics
Advanced Robotics Research, EarlyView.Fiber‐form robotic systems offer a scalable pathway toward embodied intelligence in soft robotics. This review surveys functional fibers as material, structural, and systemic elements, highlighting advances in responsive materials, architectural programing, and fabrication strategies.
Joonhee Won +5 more
wiley +1 more source