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(5188 results)-
Whitepapers
Joint Source and Relay Optimization for Parallel MIMO Relay Networks
August 16, 2012 12:00am PDT
In this paper, the authors study the optimal structure of the source pre-coding matrix and the relay amplifying matrices for Multiple-Input Multiple-Output (MIMO) relay communication systems with...
Provided by: EURASIP
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Whitepapers
Optimal MSE Solution for a Decision Feedback Equalizer
August 16, 2012 12:00am PDT
Due to the inherent feedback in a Decision Feedback Equalizer (DFE) the Minimum Mean Square Error (MMSE) or Wiener solution is not known exactly. In this paper, the authors theoretically analyze a...
Provided by: EURASIP
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Case Studies
Hunter TAFE: Institute Uses Content Management System to Create Enterprise-Quality Web Site in Two-Month Rapid Deployment
August 12, 2012 12:00am PDT
Hunter TAFE wanted to make their public web site a more powerful marketing tool. They needed a consistent brand feel across the site, better search functionality and more intuitive navigation....
Provided by: Microsoft
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Whitepapers
Evaluation of Efficient CSI Based Channel Feedback Techniques for Adaptive MIMO-OFDM Systems
August 11, 2012 12:00am PDT
This paper explores the implementation of adaptive coding and modulation schemes for Multiple-Input Multiple-Output Orthogonal Frequency Division Multiplexing (MIMO-OFDM) feedback systems....
Provided by: World Academic Union
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Case Studies
St Catherine's School: Microsoft Software and Slate PCs Foster 21st Century Learning at Leading Independent School
August 10, 2012 12:00am PDT
When staff at St Catherine's independent girls school developed their one-to-one learning strategy, they envisaged each pupil using one dedicated tablet device - at home, in the classroom and...
Provided by: Microsoft
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Whitepapers
Doubly Selective Channel Estimation for OFDM Modulated Amplify-and-Forward Relay Networks Using Superimposed Training
August 9, 2012 12:00am PDT
This paper is concerned with the problem of Superimposed Training (ST)-aided channel estimation for orthogonal frequency division multiplexing modulated amplify- and forward relay networks in...
Provided by: EURASIP
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Whitepapers
Adaptive Modulation and Coding for Two-Way Amplify-and-Forward Relay Networks
August 8, 2012 12:00am PDT
In this paper, the authors introduce an adaptive modulation and coding protocol for all-participate amplify-and-forward relay network systems to achieve a better overall system performance. In the...
Provided by: Institute of Electrical & Electronic Engineers
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Whitepapers
Vector Perturbation and Permutation Precoder Design Over Correlated MIMO Channels With Limited Feedback
August 8, 2012 12:00am PDT
In this paper, the authors present a vector perturbation precoder design with vector permutation over spatially correlated Multiple-Input Multiple Output (MIMO) channels with limited feedback. The...
Provided by: Institute of Electrical & Electronic Engineers
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Whitepapers
Two-Way Relay Underwater Acoustic Communications With Multiuser Decision-Feedback Detection and Relay Preprocessing
August 8, 2012 12:00am PDT
A Two-Way Relay Underwater Acoustic Communication (TWR-UAC) scheme is proposed and investigated, where communication between a pair of terminals is assumed. In the authors study, Underwater...
Provided by: Institute of Electrical & Electronic Engineers
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Whitepapers
Robust Multicast Beamforming Using Covariance Channel State Information
August 8, 2012 12:00am PDT
The problem of transmit beamforming design for multicast wireless system is considered in this paper. The authors focus on the robust long-term transmit beamforming design with only imperfect...
Provided by: Institute of Electrical & Electronic Engineers
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Whitepapers
Coordinated Scheduling With Adaptive Feedback in Cooperative Multi-Cell Downlink System
August 8, 2012 12:00am PDT
In this paper, the authors propose a coordinated scheduling scheme with adaptive user feedback to mitigate Inter-Cell Interference (ICI). Concretely, they analyze the ICI incurred by quantized...
Provided by: Institute of Electrical & Electronic Engineers
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Whitepapers
Perfect Algebraic Immune Functions
August 8, 2012 12:00am PDT
The study of the cryptanalysis of the filter and combination generators of stream ciphers based on Linear Feedback Shift Registers (LFSRs) has resulted in a wealth of cryptographic criteria for...
Provided by: International Association for Cryptologic Research
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Whitepapers
The Value of Feedback in Decentralized Detection
August 5, 2012 12:00am PDT
The authors consider the decentralized binary hypothesis testing problem in networks with feedback, where some or all of the sensors have access to compressed summaries of other sensors'...
Provided by: Institute of Electrical & Electronic Engineers
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Whitepapers
Downlink Scheduling in Network MIMO Using Two-Stage Channel State Feedback
August 2, 2012 12:00am PDT
In this paper, the authors propose a user scheduling scheme which is based merely on the ergodic rate. They derive the ergodic rate of each user for their network MIMO system from the average...
Provided by: Institute of Electrical & Electronic Engineers
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Whitepapers
Ergodic Capacity of Multi-User MIMO Systems Using Pilot-Based Channel Estimation, Quantized Feedback and Outdated Feedback as Well as User Selection
August 2, 2012 12:00am PDT
The authors derive the ergodic channel capacity of a closed-loop MIMO broadcast system under both Random User Selection (RUS) and Semi-orthogonal User Selection (SUS) principles, when considering...
Provided by: Institute of Electrical & Electronic Engineers
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Whitepapers
Partitioned Vector Quantization for MU-MIMO Downlink Broadcasting
August 2, 2012 12:00am PDT
A practical and efficient vector quantization called Partitioned Vector Quantization (P-VQ) based non-linear precoder for MIMO downlink broadcasting channels has been analyzed in this paper. P-VQ...
Provided by: Institute of Electrical & Electronic Engineers
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Whitepapers
Effects of Feedback Delay on the Performance of Multiple Relay Network Over Nakagami-M Fading Channels
August 2, 2012 12:00am PDT
This paper studies the effect of feedback delay on the performance of Amplify-and-Forward (AF) relay selection over Nakagami-m fading environment. Spatial diversity can be improved by employing...
Provided by: Institute of Electrical & Electronic Engineers
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Whitepapers
A Compressed HARQ Feedback for Device-to-Device Multicast Communications
August 2, 2012 12:00am PDT
An efficient receiving status feedback in multicast communications can improve the system performance considerably. In this paper, the authors propose a novel compressed Hybrid Automatic Repeat...
Provided by: Institute of Electrical & Electronic Engineers
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Whitepapers
Feedback in LT Codes for Prioritized and Non-Prioritized Data
August 2, 2012 12:00am PDT
In this paper feedback in LT codes is investigated. The considered type of feedback is acknowledgments, where information on which symbols have been decoded is given to the transmitter. The...
Provided by: Institute of Electrical & Electronic Engineers
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Whitepapers
Interference-Aware Random Beam Selection for Spectrum Sharing Systems
August 2, 2012 12:00am PDT
Spectrum sharing systems have been introduced to alleviate the problem of spectrum scarcity by allowing secondary unlicensed networks to share the spectrum with primary licensed networks under...
Provided by: Institute of Electrical & Electronic Engineers
