Results 81 to 90 of about 24,858 (168)

Genetic Algorithm Assisted Minimum Bit Error Rate Multiuser Detection in Multiple Antenna Aided OFDM

, 2004
The family of minimum bit error rate (MBER) multiuser detectors (MUD) is capable of outperforming the classic minimum mean-squared-error (MMSE)MUDin term of the achievable bit-error rate (BER) owing to directly minimising the BER cost function.
Alias, M.Y., S. Chen, Chen, Sheng, Alias, M. Y., L. Hanzo, M.Y. Alias, Hanzo, L., Chen, S.   +7 more
core   +2 more sources

Performance of the Space-Time Block Coded DS-CDMA Uplink Employing Soft-Output ACO-Aided Multiuser Space-Time Detection and Iterative Decoding [PDF]

, 2010
In this treatise we propose a three-stage twin-transmit-antenna assisted MultiUser (MU) Direct Sequence Code-Division Multiple Access (DS-CDMA) system employing both a Unitary Rate Code (URC) and a Recursive Systematic Code (RSC) to carry out iterative ...
Yang, Lie-Liang, Chong Xu, Lie-Liang Yang, Mohammed El-Hajjar, El-Hajjar, Mohammed, Rob G. Maunder, Xu, Chong, Hanzo, Lajos, Lajos Hanzo, Maunder, Robert G.   +9 more
core   +1 more source

Blind Chip-Rate Multiuser Equalisation

, 2003
This paper addresses blind multiuser detection in a DS-CDMA downlink channel. The synchronous users are separated by re-establishing orthogonality of their spreading sequences in a common chip-rate equaliser.
S. Weiss, M. Hadef, Weiss, S., Hadef, M.
core   +2 more sources

Modulation of fibroblast behavior by Leishmania: a pathway to understanding disease progression in cutaneous leishmaniasis

BMC Microbiology
Leishmaniasis is a parasitic infection caused by obligatory intracellular protozoa of the Leishmania genus. Macrophages are the main cell for Leishmania parasites that play a key role in immune response against it.
Tarcisio Navegante de Queiroz Filho, Brenda Furtado Costa, Ana Paula Drummond Rodrigues   +2 more
doaj   +1 more source

Time-Collaborative Constellation Design With Finite-Alphabet Inputs for Two-User Multi-Access Visible Light Communications

IEEE Photonics Journal, 2019
Ubiquitous light-emitting diodes provide natural infrastructures for multiuser visible light communications (VLCs). However, the current available works for multiuser VLC systems mainly focus on broadcast scenarios and beamforming techniques.
Zhen-Yu Wang, Hong-Yi Yu, Da-Ming Wang
doaj   +1 more source

Spectral-Efficiency of TDD Multiuser Two-Hop MC-CDMA Systems Employing Egocentric-Altruistic Relay Optimization [PDF]

, 2010
In this contribution we investigate the spectral-efficiency of a two-hop cooperative network using multicarrier code-division multiple-access (MC-CDMA) transmission scheme.
Tingting Liu, Yang, Lie-Liang, Lie-Liang Yang, Chenyang Yang, Liu, Tingting, Yang, Chenyang   +5 more
core   +1 more source

Particle Swarm Optimisation Aided MIMO Multiuser Transmission Designs

, 2012
Bio-inspired computational methods have found wide-ranging applications in signal processing and other walks of engineering. The main attraction of adopting bio-inspired computational intelligence algorithms is that they may facilitate global or near ...
W. Yao, S. Chen, Chen, Sheng, L. Hanzo, Hanzo, Lajos, Yao, Wang   +5 more
core   +1 more source

Generalised MBER-based vector precoding design for multiuser transmission

, 2011
We propose a generalized vector precoding (VP) design based on the minimum bit error rate (MBER) criterion for multiuser transmission in the downlink of a multiuser system, where the base station (BS) equipped with multiple transmitting antennas ...
Chen, Sheng, Hanzo, Lajos, Yao, Wang
core   +1 more source

Inter-User Interference Analysis in a Point-to-Multipoint Sub-THz Wireless Communication Link

IEEE Access
This paper presents the analysis of the inter-user interference (IUI) in a multiuser wireless link operating in the sub-THz frequency range of 270 GHz to 330 GHz.
Joel Dittmer, Akanksha Bhutani, Christian Bremauer, Felix Beuthan, Josefine Seidel, Sandrine Wagner, Axel Tessmann, Thomas Zwick, Christian Koos, Sebastian Randel   +9 more
doaj   +1 more source

Time- and Frequency-Domain-Spread Generalized Multicarrier DS-CDMA Using Subspace-Based Blind and Group-Blind Space–Time Multiuser Detection

, 2008
—Subspace-based blind and group-blind space–time (ST) multiuser detection (MUD) is invoked for a smart-antenna-aided gen-eralized multicarrier direct-sequence code-division multiple-access (MC DS-CDMA) system communicating over a dispersive ST Rayleigh ...
Lie-liang Yang, Yang, Lie-Liang, Hu, Bin, Hanzo, Lajos, Lajos Hanzo, Bin Hu   +5 more
core