Results 101 to 110 of about 4,925 (231)

Multiuser MIMO-OFDM Systems using Subcarrier Hopping

open access: yes, 2006
Recently space division multiple access (SDMA) assisted multiple-input–multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) systems invoking multiuser detection (MUD) techniques have attracted substantial research interest, which is ...
Jiang, M, Hanzo, L
core  

Impact of Carrier Frequency Offsets on Block-IFDMA Systems

open access: yesEURASIP Journal on Wireless Communications and Networking, 2009
Recently, a new multiple access (MA) scheme called block-interleaved frequency division multiple access (B-IFDMA) is under consideration as an MA scheme candidate for 4G wireless applications.
Simon EP   +2 more
doaj  

Joint Multiuser Detection and Optimal Spectrum Balancing for Digital Subscriber Lines

open access: yesEURASIP Journal on Advances in Signal Processing, 2006
In a digital subscriber line (DSL) system with strong crosstalk, the detection and cancellation of interference signals have the potential to improve the overall data rate performance.
Chan Vincent MK, Yu Wei
doaj   +1 more source

Subspace-Based Blind and Group-Blind Space-Time Multiuser Detection for the Generalized Multicarrier DS-CDMA Uplink

open access: yes, 2006
Subspace-based blind and group-blind space-time multiuser detection is invoked for a smart antenna aided generalized MC DS-CDMA system communicating over a dispersive Space-Time (ST) Rayleigh fading channel, where the channel estimates are attained by ...
Yang, L-L., Hanzo, L., Hu, B.
core  

Transmitter-preprocessing-assisted cooperative downlink transmission in DS-CDMA systems experiencing propagation path loss and Nakagami-m fading

open access: yes, 2009
In this contribution we propose and investigate a relay diversity transmission scheme for the direct-sequence code-division multiple-access (DS-CDMA) downlink, where each (destination) mobile terminal (MT) is aided by a cluster of relays for achieving ...
Yang, Lie-Liang, Fang, Wei, Hanzo, Lajos
core   +1 more source

Reliability-Aided Multiuser Detection in Time-Frequency-Domain Spread Multicarrier DS-CDMA Systems

open access: yes, 2009
In this contribution we propose and study a novel multiuser detection (MUD) scheme for multicarrier direct-sequence code-division multiple-access systems employing both time (T)-domain and frequency (F)-domain spreading, which are referred to as the TF ...
Yang, Lie-Liang   +5 more
core   +1 more source

Integrated WHT- and DFT-Based Multiuser Massive MIMO System for Secure RIS-Enabled mmWave Communications

open access: yesIEEE Access
Enhancing signal quality by reducing multiuser interference (MUI), improving system energy efficiency and spectrum efficiency, minimizing interference with adjacent frequency bands, and ensuring secure data communication are critical challenges in the ...
Md. Najmul Hossain   +5 more
doaj   +1 more source

Particle Swarm Optimisation Aided MIMO Multiuser Transmission Designs

open access: yes, 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   +5 more
core  

Multiuser MIMO-OFDM for Next-Generation Wireless Systems

open access: yes, 2007
This overview portrays the 40-year evolution of orthogonal frequency division multiplexing (OFDM) research. The amelioration of powerful multicarrier OFDM arrangements with multiple-input multiple-output (MIMO) systems has numerous benefits, which are ...
Jiang, M   +3 more
core   +1 more source

Home - About - Disclaimer - Privacy