Results 81 to 90 of about 4,925 (231)

Performance Evaluation of a Novel CDMA Detection Technique: The Two-State Approach

open access: yesEURASIP Journal on Advances in Signal Processing, 2005
The use of code division multiple access (CDMA) makes third-generation wireless systems interference limited rather than noise limited. The research for new methods to reduce interference and increase efficiency lead us to formulate a signaling method ...
Ronga Luca Simone   +2 more
doaj   +1 more source

Hybrid Iterative Multiuser Detection for Channel Coded Space Division Multiple Access OFDM Systems

open access: yes, 2006
Space division multiple access (SDMA) aided orthogonal frequency division multiplexing (OFDM) systems assisted by efficient multiuser detection (MUD) techniques have recently attracted intensive research interests.
Jiang, M.   +5 more
core   +1 more source

Receiver multiuser diversity aided multi-stage minimum mean-square error detection for heavily loaded DS-CDMA and SDMA systems [PDF]

open access: yes, 2010
By investigating the conditions required for successive interference cancellation multiuser detectors (SIC-MUD) to achieve near-optimum BER performance, we propose and investigate a so-called receiver multiuser diversity aided multi-stage minimum mean ...
Yang, Lie-Liang, Lie-Liang Yang
core   +1 more source

Interference alignment based secure transmission scheme in multi-user interference networks

open access: yes物联网学报, 2023
Faced with the requirement of information security in internet of things, a scenario of multi-user interference networks with multiple eavesdroppers was considered, and an interference alignment (IA) scheme based physical layer secure transmission was ...
Lin HU   +4 more
doaj   +2 more sources

Adaptive Minimum-BER Linear Multiuser Detection for DS-CDMA Signals in Multipath Channels

open access: yes, 2001
The problem of constructing adaptive minimum bit error rate (MBER) linear multiuser detectors is considered for direct-sequence code division multiple access (DS-CDMA) signals transmitted through multipath channels.
Mulgrew, B.   +3 more
core  

Minimum symbol error rate turbo multiuser beamforming aided QAM receiver

open access: yes, 2008
This paper studies a novel iterative soft interference cancellation (SIC) aided beamforming receiver designed for high-throughput quadrature amplitude modulation systems communicating over additive white Gaussian noise channels.
Chen, Sheng, Tan, S, Hanzo, L
core  

An Iterative Multiuser Detector for Turbo-Coded DS-CDMA Systems

open access: yesEURASIP Journal on Advances in Signal Processing, 2005
We propose an iterative multiuser detector for turbo-coded synchronous and asynchronous direct-sequence CDMA (DS-CDMA) systems. The receiver is derived from the maximum a posteriori (MAP) estimation of the single user's transmitted data, conditioned on ...
Takawira Fambirai   +1 more
doaj   +1 more source

Exact Outage Performance Analysis of Multiuser Multi-relay Spectrum Sharing Cognitive Networks [PDF]

open access: yesRadioengineering, 2015
In this paper, we investigate the outage performance of dual-hop multiuser multi-relay cognitive radio networks under spectrum sharing constraints. Using an efficient relay-destination selection scheme, the exact and asymptotic closed-form expressions ...
T. Zhang, W. Yang, Y. Cai
doaj  

Hybrid SNR‐Adaptive Multiuser Detectors for SDMA‐OFDM Systems

open access: yesETRI Journal, 2018
Multiuser detection (MUD) and channel estimation techniques in space‐division multiple‐access aided orthogonal frequency‐division multiplexing systems recently has received intensive interest in receiver design technologies.
Uğur Yeşilyurt, Özgür Ertuğ
doaj   +1 more source

Home - About - Disclaimer - Privacy