Results 1 to 10 of about 4,308 (180)
Multiple access interference suppression for CDMA systems via ℓ∞-minimization [PDF]
Fundamental Research, 2022 A key problem in code-division multiple access (CDMA) system is to mitigate the multiple access interference (MAI) from other users while detecting the desired user.
Xue Jiang, Xingzhao Liu, T. Kirubarajan
doaj +2 more sources
Enhanced Receivers for Interference Cancellation in 3G Systems [PDF]
Radioengineering, 2009 Interference cancellation and multiuser detection in CDMA systems are still actual research topics. These techniques enable us to deal with interference and to increase system capacity.
S. Hanus, P. Kejik
doaj +2 more sources
Two approaches to multiuser detection over fading channels
Доклады Белорусского государственного университета информатики и радиоэлектроники, 2021 In this paper, two different receiver structures to multiuser detection that are appropriate for the code-division multiple-access systems with antenna arrays in fading channels are investigated and compared. We analyze and compare the performance of the
V. P. Tuzlukov
doaj +1 more source
Blind multiuser identification and detection in CDMA systems [PDF]
1995 International Conference on Acoustics, Speech, and Signal Processing, 2002 Multiuser detection in code division multiple access systems usually requires either knowledge of the transmitted signature sequences and channel state information or use of a known training sequence for adaptation. We develop a scheme that can be employed for the joint adaptive blind multiuser identification and detection in asynchronous CDMA systems.
Rodríguez Fonollosa, Javier +3 more
openaire +2 more sources
Blind multiuser detection using linear prediction [PDF]
IEEE Journal on Selected Areas in Communications, 1998 We propose a blind multiuser detection technique for array processing and code division multiple access (CDMA) systems that does not require knowledge of the array geometry or transmitter signature sequences. The technique has two key elements: an adaptive algorithm for separating the signal subspace from the noise subspace and an adaptive whitener ...
Richard T. Causey, John R. Barry
openaire +1 more source
Information, 2015 Multi-user detection is an effective method to reduce multiple access interference in code division multiple access (CDMA) systems. This paper discusses a signal subspace based blind adaptive multiuser detector and a Kalman filtering blind adaptive ...
Liqing Zhou +5 more
doaj +1 more source
DSP-based ionospheric radiolink using DS-CDMA and on-line channel estimation [PDF]
, 2000 In this paper, a new blind multiuser detection algorithm is presented. It can both cancel multiuser interference and estimate the multipath channel response in a blind way. The method has been specially conceived for low coherence bandwidth channels such
Moran, J A +3 more
core +1 more source
Blind multiuser deconvolution in fading and dispersive channels [PDF]
, 1995 An adaptive near-far resistant technique for the blind joint multiuser identification and detection in asynchronous CDMA systems is analyzed in fading and dispersive GSM channels.Peer ReviewedPostprint (published ...
Rodríguez Fonollosa, Javier +3 more
core +1 more source
A group-blind multiuser receiver for MC-CDMA systems [PDF]
, 2004 In this paper, a group-blind multiuser receiver is investigated for multicarrier code division multiple access (MC-CDMA) systems. In uplink transmissions, the receiver has the knowledge of the spreading sequences of the users within the cell, while the ...
Chan, SC, Cheng, H
core +1 more source
Blind Multiuser Detection with Array Observations
Wireless Personal Communications, 1998 Cochannel interference is usually a major limitation to the performance of mobile wireless systems. Examples of different forms of cochannel interference include multi-access interference in CDMA systems and cochannel interference resulting from frequency reuse in TDMA systems.
Rodríguez Fonollosa, Javier +3 more
openaire +3 more sources