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multiuser
(1932 results)
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White Papers
Exploiting Opportunistic Multiuser Detection in Decentralized Multiuser MIMO Systems
May 21, 2009 12:00am PDT
This paper studies the design of a decentralized multiuser multi-antenna (MIMO) system for spectrum sharing over a fixed narrow band, where the coexisting users independently update their transmit...
Provided by: Stanford University
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White Papers
Degrees of Freedom in Wireless Multiuser Spatial Multiplex Systems With Multiple Antennas
October 1, 2006 12:00am PDT
The emergence of multiuser transmission techniques for wireless multiantenna systems has opened up the possibility of allowing multiple users to access the base-station at the same frequency and...
Provided by: Institute of Electrical and Electronics Engineers
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White Papers
A Technique for Multiuser and Intercarrier Interference Reduction in Multiple-Antenna Multiuser OFDM Downlink
December 18, 2009 12:00am PST
The authors propose a two-stage precoder/equalizer to suppress InterCarrier Interference (ICI) and MultiUser Interference (MUI) in downlink multiuser OFDM with multiple transmit antennas. The...
Provided by: Institute of Electrical and Electronics Engineers
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White Papers
Performance Analysis of Distributed Cluster-Based MAC Protocol for Multiuser MIMO Wireless Networks
March 27, 2011 12:00am PDT
It is known that multiuser MIMO communication can enhance the performance of wireless networks. It can substantially increase the spectral efficiency of wireless networks by utilising multiuser...
Provided by: ETH Zurich
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White Papers
Performance Analysis for Linearly Precoded LTE Downlink Multiuser MIMO
February 22, 2011 12:00am PST
The average channel capacity and the SINR distribution for multiuser Multiple Input Multiple Output (MIMO) systems in combination with the base station based packet scheduler are analyzed in this...
Provided by: Hindawi Publishing
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White Papers
Design Linear Multiuser Transmitters From Linear Multiuser Receivers
June 1, 2007 12:00am PDT
Novel concepts are introduced for finding the relationship between Multi-User Detection (MUD) and Multi-User Transmission (MUT), so that the study in MUT can benefit from the well-built theory in...
Provided by: Institute of Electrical and Electronics Engineers
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White Papers
A Low-Complexity Algorithm for Improving Computing Power of Multiuser Receivers for Next Generation Wireless Systems
June 14, 2009 12:00am PDT
A new Transformation Matrix (TM) algorithm for reducing the computational complexity of multiuser receivers for DS-CDMA wireless system is presented. Next generation multiuser wireless receivers...
Provided by: University of Bridgeport
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White Papers
Single-User MIMO Vs. Multiuser MIMO in the Broadcast Channel With CSIT Constraints
August 29, 2008 12:00am PDT
This paper considers fundamental limits on adaptive Multiple-Input Multiple-Output (MIMO) transmission with imperfect Channel State Information at the Transmitter (CSIT). First, the achievable...
Provided by: University of Texas
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White Papers
The Effect of Spatial Diversity in MIMO System With Multiuser Diversity Scheduler
July 1, 2008 12:00am PDT
In multiuser MIMO system with MUltiuser Diversity (MUDiv) scheduler, spatial diversity plays a role to affect the scheduling gain. In order to investigate this phenomenon, the authors derive a new...
Provided by: Institute of Electrical and Electronics Engineers
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White Papers
Channel Access Statistics of Parallel Multiuser Scheduling
June 1, 2007 12:00am PDT
Multiuser scheduling for cross-layer design has attracted a lot of research interest in recent years. In opportunistic multiuser diversity, the scheduler assigns the channel access to the user...
Provided by: Institute of Electrical and Electronics Engineers
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White Papers
Optimal Multiuser MIMO Linear Precoding With LMMSE Receiver
June 19, 2006 12:00am PDT
The adoption of multiple antennas both at the transmitter and the receiver will explore additional spatial resources to provide substantial gain in system throughput with the Spatial Division...
Provided by: University of Electronic Science and Technology of China
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White Papers
A Unified Capacity Analysis for Wireless Systems With Joint Multiuser Scheduling and Antenna Diversity in Nakagami Fading Channels
March 1, 2006 12:00am PST
In this paper, the authors present a cross-layer analytical framework to jointly investigate antenna diversity and multiuser scheduling under the generalized Nakagami fading channels. They derive...
Provided by: Institute of Electrical and Electronics Engineers
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White Papers
Spectrum Management in Multiuser Cognitive Wireless Networks: Optimality and Algorithm
February 1, 2011 12:00am PST
Spectrum management is used to improve performance in multiuser communication system, e.g., cognitive radio or femtocell networks, where multiuser interference can lead to data rate degradation....
Provided by: Institute of Electrical and Electronics Engineers
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White Papers
Spectrum Management in Multiuser Cognitive Wireless Networks: Optimality and Algorithm
February 1, 2011 12:00am PST
Spectrum management is used to improve performance in multiuser communication system, e.g., cognitive radio or femtocell networks, where multiuser interference can lead to data rate degradation....
Provided by: Institute of Electrical and Electronics Engineers
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White Papers
Interference Reduction Technique in Multistage Multiuser Detector for DS-CDMA System
January 5, 2011 12:00am PST
This paper presents the results related to the interference reduction technique in multistage multiuser detector for asynchronous DS-CDMA system. To meet the real-time requirements for...
Provided by: World Academy of Science, Engineering and Technology
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White Papers
An Approximate Approach for Layered Space - Time Multiuser Detection Performance and Its Application to MIMO Ad Hoc Networks
January 1, 2011 12:00am PST
In this paper, the authors consider a layered space - time multiuser detection technique and propose an analytical approximation for its performance. The authors' work is useful in two different...
Provided by: UC Regents
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White Papers
Large-System Analysis of Multiuser Detection With an Unknown Number of Users: A High-SNR Approach
October 11, 2010 12:00am PDT
The authors analyze multiuser detection under the assumption that the number of users accessing the channel is unknown by the receiver. In this environment, users' activity must be estimated along...
Provided by: University of Cambridge
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White Papers
Feedback Design in Multiuser MIMO Systems Using Quantization Splitting and Hybrid Instantaneous/Statistical Channel Information
September 19, 2010 12:00am PDT
In the design of next generation multiuser communication systems, multiple antenna transmission is an essential part providing spatial multiplexing gain and allowing efficient use of resources. A...
Provided by: KTH - Royal Institute of Technology
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White Papers
A Low Complexity Greedy Scheduler for Multiuser MIMO Downlink
July 19, 2010 12:00am PDT
It is widely believed that the implementation of Multi-User Multiple Input Multiple Output (MU-MIMO) technology at the radio access portion of current and future wireless networks would positively...
Provided by: Tshwane University of Technology
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White Papers
Power Control Versus Multiuser Detection Based Cross-Layer Design in Wireless Ad Hoc Networks
June 17, 2010 12:00am PDT
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 careful joint design of...
Provided by: Technische Universitat Munchen
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