Results 11 to 20 of about 4,308 (180)
The Journal of Engineering, Volume 2023, Issue 12, December 2023., 2023 This paper proposes an AIT‐WC‐based blind detection algorithm for successive interference cancellation in Non‐Orthogonal Multiple Access system. For the authors’ application scenario, theoretical analysis and simulation results show that the proposed algorithm achieves higher detection performance but with an approximate computation complexity ...
Jia Liu, Hao Zhang, Bo Wang
wiley +1 more source
IET Radar, Sonar &Navigation, Volume 17, Issue 9, Page 1313-1326, September 2023., 2023 (1) A novel modulation recognition method of multi‐component radar signals based on the deep convolutional neural network with a convolutional block attention module (DCNN‐CBAM) is proposed, and the network architecture mainly includes mobile inverted bottleneck convolution (MBConv), Fused‐MBConv, and convolutional block attention module (CBAM).
Chenxia Wan, Weijian Si, Zhian Deng
wiley +1 more source
Cdma blind channel equalization: a weighted subsface a proach [PDF]
, 1999 This paper considers the problem of blind demodulation of multiuser information symbols in a direct-sequence code-division multiple access (DS-CDMA) environment. Channel estimation and symbol detection in the presence of both multiple access interference
Cabrera-Bean, Margarita +1 more
core +1 more source
IEEE Access, 2018 To mitigate the inter-symbol interference (ISI), multiple access interference (MAI), and the effect of different Doppler shifts within a data package incurred in variably mobile asynchronous underwater multiuser communications (VMAUMC), a Kalman filter ...
Guang Yang +4 more
doaj +1 more source
Group-blind detection with very large antenna arrays in the presence of pilot contamination [PDF]
, 2015 Massive MIMO is, in general, severely affected by pilot contamination. As opposed to traditional detectors, we propose a group-blind detector that takes into account the presence of pilot contamination.
Ferrante, Guido Carlo +3 more
core +2 more sources
Natural gradient based blind multiuser detection
The 13th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, 2003 In this paper, novel structures for dynamic removal of multiuser interference are proposed. The natural gradient (NG) is used either to compute whitening matrices in linear blind minimum MSE or to develop new structures. As a result, we propose a family of centralized and non-centralized multiuser detectors (MUD's).
Juan José Murillo-Fuentes +3 more
openaire +2 more sources
Probabilistic algorithms for blind adaptive multiuser detection [PDF]
IEEE Transactions on Signal Processing, 1998 In this paper, two probabilistic adaptive algorithms for jointly detecting active users in a DS-CDMA system are reported. The first one, which is based on the theory of hidden Markov models (HMM’s) and the Baum–Wech (BW) algorithm, is proposed within the CDMA scenario and compared with the second one, which is a previously ...
Antón Haro, Carles +3 more
openaire +2 more sources
Blind equalization of DS-CDMA and MC-CDMA modulations in time-variant frequency selective channels [PDF]
, 1999 The paper addresses the blind equalization problem of spread spectrum modulations in the presence of fast time-variant frequency-selective channels. The basic assumption of the paper is that the channel response exhibits fast changes.
Rey Micolau, Francesc +1 more
core +1 more source
Blind adaptive Krylov subspace multiuser detection
IEEE 54th Vehicular Technology Conference. VTC Fall 2001. Proceedings (Cat. No.01CH37211), 2002 A new method for low-complexity Multiuser Detection (MUD)based in the Fast Subspace Decomposition (FSD) is proposed. The use of FSD allows the estimation of the number of users along with the multiuser detection on line. This leads to a fast multiuser estimation-detection scheme with ultra-low complexity.
Caamaño, Antonio J. +2 more
openaire +2 more sources
A probabilistic method for blind multiuser detection using array observations [PDF]
, 1997 In this paper, a blind algorithm for detecting active users in a DS-CDMA system is presented. This probabilistic algorithm relies on the theory of hidden Markov models (HMM) and is completely blind in the sense that no knowledge of the signature ...
Antón Haro, Carles +2 more
core +1 more source