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(5188 results)-
Whitepapers
Base Station Cooperation with Noisy Analog Channel Feedback: A Large System Analysis
May 24, 2012 12:00am PDT
Channel State Information (CSI) at the Base Stations (BSs) can significantly increase the spectral efficiency in single and multi-cell broadcast channels. Assuming the users learn their direct and...
Provided by: University of Medicine and Pharmacy
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Whitepapers
New Leakage-Based Iterative Coordinated Beam-Forming for Multi-User MIMO in LTE-Advanced
May 24, 2012 12:00am PDT
In this paper, the authors investigate a typical LTE-Advanced multi-user MIMO system where Mobile Stations (MSs) feedback limited channel state information using codebook based approaches. A joint...
Provided by: University of Kalyani
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Whitepapers
CSI Feedback Allocation in Multicell MIMO Channels
May 24, 2012 12:00am PDT
In this paper, the authors consider the joint pre-coding across K Transmitters (TXs), sharing the knowledge of the user's data symbols being transmitted to K single-antenna Receivers (RXs). They...
Provided by: EURECOM
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Whitepapers
Feedback and Delayed CSI Can Be as Good as Perfect CSI
May 24, 2012 12:00am PDT
The Degrees of Freedom (DoF) region of the two-user MIMO Interference Channel (IC) is completely characterized in the presence of noiseless channel output feedback from each receiver to its...
Provided by: Princeton Software
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Whitepapers
An Interpretation of the Cover and Leung Capacity Region for the MAC With Feedback Through Stochastic Control
May 24, 2012 12:00am PDT
The authors consider the problem of communication over a Multiple Access Channel (MAC) with noiseless feedback. A single-letter characterization of the capacity of this channel is not currently...
Provided by: University of Miami School of Business Administration
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Whitepapers
Heterogeneous Partial Feedback Design in Heterogeneous OFDMA Cellular Networks
May 24, 2012 12:00am PDT
Modern heterogeneous networks have an inherent heterogeneous structure such as user densities and large scale channel effects that motivates this work on heterogeneous partial feedback design. In...
Provided by: University of Calgary
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Whitepapers
On the Error-Rate Performance of 4-State Turbo Codes With Puncture-Constrained DRP Interleavers
May 24, 2012 12:00am PDT
It has often been demonstrated that conventional 4- state turbo codes do not perform well in either the waterfall or error-rate flare regions due to poor inherent convergence and distance...
Provided by: Communications Research Centre
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Whitepapers
Prompt Congestion Reaction Scheme for Data Center Network Using Multiple Congestion Points
May 24, 2012 12:00am PDT
With recent advocates on end-to-end congestion control, the authors still observe lack of consideration of network congestion status in literature. Since end-to-end congestion control mechanisms...
Provided by: Nanyang Technological University
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Whitepapers
On the Scalability of Feedback-Based Two-Stage Switch
May 24, 2012 12:00am PDT
The feedback-based two-stage switch does not require a central scheduler and can provide close to 100% throughput. But the number of cross-points required for the two stages of switch fabric is...
Provided by: Zhejiang Sci-Tech University
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Whitepapers
Joint MAX-SER-Minimized DFE Transceiver Design With Bit Allocation for Broadcast Channels
May 24, 2012 12:00am PDT
This paper addresses the joint design problem of bit allocation and Decision Feedback Equalizer (DFE) transceiver for Multi-Input Multi-Output (MIMO) BroadCast (BC) channels. Channel State...
Provided by: California Institute of Technology
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Whitepapers
Adaptive Decision-Feedback Equalization of MIMO Channels Using Coordinate Descent Iterations
May 24, 2012 12:00am PDT
A new adaptive MIMO channel equalizer is proposed based on adaptive generalized decision-feedback equalization and ordered-successive interference cancelation. The proposed equalizer comprises...
Provided by: University of South Alabama
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Whitepapers
Secure Estimation and Control for Cyber-Physical Systems Under Adversarial Attacks
May 24, 2012 12:00am PDT
The vast majority of today's critical infrastructure is supported by numerous feedback control loops and an attack on these control loops can have disastrous consequences. This is a major concern...
Provided by: University of Calgary
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Whitepapers
Using All the Tools You Can
May 21, 2012 12:00am PDT
User demands on Wi-Fi networks continue to rise quickly across every segment of the industry, and as a direct result, great radio performance matters more than ever. Achieving that high...
Provided by: Ruckus Network
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Whitepapers
Dynamic Management of Resources and Workloads for RDBMS in Cloud: A Control-Theoretic Approach
May 20, 2012 12:00am PDT
As cloud computing environments become explosively popular, dealing with unpredictable changes, uncertainties, and disturbances in both systems and environments turns out to be one of the major...
Provided by: Association for Computing Machinery
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Whitepapers
Online Adaptive Fault Tolerant Based Feedback Control Scheduling Algorithm for Multiprocessor Embedded Systems
May 19, 2012 12:00am PDT
Since some years ago, use of Feedback Control Scheduling Algorithm (FCSA) in the control scheduling co-design of multiprocessor embedded system has increased. FCSA provides Quality of Service...
Provided by: University of Warsaw
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White Papers
A Limited Feedback Scheme Based on Spatially Correlated Channels for Coordinated Multipoint Systems
May 18, 2012 12:00am PDT
High spectral efficiency can be achieved in the downlink of multi-antenna coordinated multi-point systems provided that the multi-user interference is appropriately managed at the transmitter...
Provided by: Springer Science+Business Media
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Whitepapers
Feedback in the K-User Interference Channel
May 18, 2012 12:00am PDT
A traditional viewpoint on feedback capacity has been pessimistic over the past few decades. This is mainly due to Shannon's original result which shows that feedback provides no increase in...
Provided by: University of Southern California
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Whitepapers
Waveform Scheduling Via Directed Information in Cognitive Radar
May 8, 2012 12:00am PDT
The objective of waveform scheduling is to achieve maximal information extraction of the radar scene, which typically changes from one measurement to the next, by exploiting prior statistics and...
Provided by: University of Illinois
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Whitepapers
An Iterative Receiver for Quantized MIMO Systems
May 7, 2012 12:00am PDT
The authors study the joint optimization of the quantizer and the iterative Decision Feedback Equalizer (IDE) for the flat Multi-Input Multi-Output (MIMO) channel with quantized outputs. Their...
Provided by: Institute of Electrical & Electronic Engineers
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Whitepapers
Hatman: Intra-Cloud Trust Management for Hadoop
May 6, 2012 12:00am PDT
Data and computation integrity and security are major concerns for users of cloud computing facilities. Many production-level clouds optimistically assume that all cloud nodes are equally...
Provided by: University of Texas
