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ICASSP
2011
IEEE
8 years 7 months ago
Optimum multi-user detection by nonsmooth optimization
—The optimum multiuser detection (OMD) is a discrete (binary) optimization. The previously developed approaches often relax it by a semi-definite program (SDP) and then employ r...
Hoang Duong Tuan, Tran Thai Son, Hoang Tuy, Ha H. ...
PIMRC
2010
IEEE
9 years 1 months ago
Power control versus multiuser detection based cross-layer design in wireless ad hoc networks
Abstract--In wireless ad hoc networks, multiple access interference is the limiting factor for the overall system performance. The lack of any central control unit necessitates a c...
Ulrike Korger, Christian Hartmann, Katsutoshi Kusu...
MACOM
2010
9 years 1 months ago
Quality of Service Oriented Analysis of Cross-Layer Design in Wireless Ad Hoc Networks
Abstract. In wireless ad hoc networks, cross-layer design aims at reducing multiple access interference and thus obtaining a higher spatial reuse. In order to identify the most sui...
Ulrike Korger, Christian Hartmann, Katsutoshi Kusu...
TSP
2008
147views more  TSP 2008»
9 years 3 months ago
Low-Complexity MIMO Multiuser Receiver: A Joint Antenna Detection Scheme for Time-Varying Channels
Abstract--This paper deals with the uplink of a wireless multiple-input multiple-output (MIMO) communication system based on multicarrier (MC) code division multiple access (CDMA)....
Charlotte Dumard, Thomas Zemen
CORR
2006
Springer
112views Education» more  CORR 2006»
9 years 3 months ago
Performance Analysis of Iterative Channel Estimation and Multiuser Detection in Multipath DS-CDMA Channels
Abstract--This paper examines the performance of decisionfeedback-based iterative channel estimation and multiuser detection in channel coded aperiodic direct sequence code divisio...
Husheng Li, Sharon M. Betz, H. Vincent Poor
VTC
2006
IEEE
171views Communications» more  VTC 2006»
9 years 9 months ago
Analysis of Spatial Multiplexing for Cross-Layer Design of MIMO Ad Hoc Networks
— We consider the application of spatial multiplexing to ad hoc networks where nodes have multiple antennas. At the physical level, we suppose that layered space–time multiuser...
Marco Levorato, Stefano Tomasin, Paolo Casari, Mic...
CCECE
2006
IEEE
9 years 9 months ago
Group-Optimal Linear Space-Time Multiuser Detection
Multiuser detection (MUD) techniques are known to improve the performance of CDMA cellular communication systems. This performance improvement usually comes at a large computation...
Benoit Pelletier, Benoît Champagne
ICC
2007
IEEE
9 years 10 months ago
Turbo Multiuser Detection Based on Local Search Algorithms
—The full-complexity soft-input/soft-output (SISO) multiuser detector based on the a posteriori probability (APP) algorithm has a computational complexity growing exponentially w...
Zhiliang Qin, Kui Cai, Xiaoxin Zou
ICC
2007
IEEE
123views Communications» more  ICC 2007»
9 years 10 months ago
Quality of Service in Wireless Network Diversity Multiple Access Protocols Based on a Virtual Time-Slot Allocation
— In this paper, we propose a new resource allocation mechanism which is designed to improve the multiuser detection of wireless network diversity multiple access (NDMA) protocol...
Ramiro Samano-Robles, Mounir Ghogho, Desmond C. Mc...
ICASSP
2008
IEEE
9 years 10 months ago
Low-complexity receivers for multiuser detection with an unknown number of active users
In multiuser detection, the set of users active at any time may be unknown to the receiver. A two-step detection procedure, in which multiuser detection is preceded by active-user...
Daniele Angelosante, Ezio Biglieri
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