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1. |
Record Nr. |
UNINA9910139921603321 |
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Autore |
Honig Michael |
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Titolo |
Advances in multiuser detection / / edited by Michael L. Honig |
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Pubbl/distr/stampa |
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Hoboken, New Jersey : , : Wiley, , c2009 |
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ISBN |
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1-282-27851-7 |
9786612278518 |
0-470-47381-9 |
0-470-47380-0 |
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Edizione |
[1st edition] |
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Descrizione fisica |
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1 online resource (517 p.) |
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Collana |
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Wiley series in telecommunications and signal processing ; ; 99 |
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Altri autori (Persone) |
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Disciplina |
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Soggetti |
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Multiuser detection (Telecommunication) |
Signal theory (Telecommunication) |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Description based upon print version of record. |
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Nota di bibliografia |
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Includes bibliographical references and index. |
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Nota di contenuto |
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Preface. -- Contributors. -- 1 Overview of Multiuser Detection (Michael L. Honig). -- 1.1 Introduction. -- 1.2 Matrix Channel Model. -- 1.3 Optimal Multiuser Detection. -- 1.4 Linear Detectors. -- 1.5 Reduced-Rank Estimation. -- 1.6 Decision-Feedback Detection. -- 1.7 Interference Mitigation at the Transmitter. -- 1.8 Overview of Remaining Chapters. -- References. -- 2 Iterative Techniques (Alex Grant and Lars K. Rasmussen). -- 2.1 Introduction. -- 2.2 Iterative Joint Detection for Uncoded Data. -- 2.3 Iterative Joint Decoding for Coded Data. -- 2.4 Concluding Remarks. -- References. -- 3 Blind Multiuser Detection in Fading Channels (Daryl Reynolds, H. Vincent Poor, and Xiaodong Wang). -- 3.1 Introduction. -- 3.2 Signal Models and Blind Multiuser Detectors for Fading Channels. -- 3.3 Performance of Blind Multiuser Detectors. -- 3.4 Bayesian Multiuser Detection for Long-Code CDMA. -- 3.5 Multiuser Detection for Long-Code CDMA in Fast-Fading Channels. -- 3.6 Transmitter-Based Multiuser Precoding for Fading Channels. -- 3.7 Conclusion. -- References. -- 4 Performance with Random Signatures (Matthew J. M. Peacock, Iain B. Collings, and Michael L. Honig). -- 4.1 Random Signatures and Large System Analysis. -- 4.2 System Models. -- 4.3 Large System Limit. -- 4.4 Random Matrix Terminology. -- 4.5 Incremental Matrix Expansion. -- |
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4.6 Analysis of Downlink Model. -- 4.7 Spectral Efficiency. -- 4.8 Adaptive Linear Receivers. -- 4.9 Other Models and Extensions. -- 4.10 Bibliographical Notes. -- References. -- 5 Generic Multiuser Detection and Statistical Physics <Dongning Guo and Toshiyuki Tanaka). -- 5.1 Introduction. -- 5.2 Generic Multiuser Detection. -- 5.3 Main Results: Single-User Characterization. -- 5.4 The Replica Analysis of Generic Multiuser Detection. -- 5.5 Further Discussion. -- 5.6 Statistical Physics and the Replica Method. -- 5.7 Interference Cancellation. -- 5.8 Concluding Remarks. -- 5.9 Acknowledgments. -- References. -- 6 Joint Detection for Multi-Antenna Channels (Antonia Tulino, Matthew R. McKay, Jeffrey G. Andrews,. |
Iain B. Collings, and Robert W. Heath, Jr.). -- 6.1 Introduction. -- 6.2 Wireless Channels: The Multi-Antenna Realm. -- 6.3 Definitions and Preliminaries. -- 6.4 Multi-Antenna Capacity: Ergodic Regime. -- 6.5 Multi-Antenna Capacity: Non-Ergodic Regime. -- 6.6 Receiver Architectures and Performance. -- 6.7 Multiuser Multi-Antenna Systems. -- 6.8 Diversity-Multiplexing Tradeoffs and Spatial Adaptation. -- 6.9 Conclusions. -- References. -- 7 Interference Avoidance for CDMA Systems (Dimitrie C. Popescu, Sennur Ulukus, Christopher Rose, and Roy Yates). -- 7.1 Introduction. -- 7.2 Interference Avoidance Basics. -- 7.3 Interference Avoidance over Time-Invariant Channels. -- 7.4 Interference Avoidance in Fading Channels. -- 7.5 Interference Avoidance in Asynchronous Systems. -- 7.6 Feedback Requirements for Interference Avoidance. -- 7.7 Recent Results on Interference Avoidance. -- 7.8 Summary and Conclusions. -- References. -- 8 Capacity-Approaching Multiuser Communications Over Multiple Input/Multiple Output Broadcast Channels (Uri Erez and Stephan ten Brink). -- 8.1 Introduction. -- 8.2 Many-to-One Multiple Access versus One-to-Many Scalar Broadcast Channels. -- 8.3 Alternative Approach: Dirty Paper Coding. -- 8.4 A Simple 2 x 2 Example. -- 8.5 General Gaussian MIMO Broadcast Channels. -- 8.6 Coding with Side Information at the Transmitter. -- 8.7 Summary. -- References. -- Index. |
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Sommario/riassunto |
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A Timely Exploration of Multiuser Detection in Wireless Networks During the past decade, the design and development of current and emerging wireless systems have motivated many important advances in multiuser detection. This book fills an important need by providing a comprehensive overview of crucial recent developments that have occurred in this active research area. Each chapter is contributed by noted experts and is meant to serve as a self-contained treatment of the topic. Coverage includes: . Linear and decision feedback methods. Iterative multiuser detection and decoding. Multiuser detection in the presence of channel impairments. Performance analysis with random signatures and channels. Joint detection methods for MIMO channels. Interference avoidance methods at the transmitter. Transmitter precoding methods for the MIMO downlink This book is an ideal entry point for exploring ongoing research in multiuser detection and for learning about the field's existing unsolved problems and issues. It is a valuable resource for researchers, engineers, and graduate students who are involved in the area of digital communications. |
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2. |
Record Nr. |
UNINA9910139294303321 |
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Autore |
Eldridge Sandra |
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Titolo |
A practical guide to cluster randomised trials in health services research [[electronic resource] /] / Sandra Eldridge, Sally Kerry |
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Pubbl/distr/stampa |
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Chichester, West Sussex, : John Wiley & Sons, 2012 |
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ISBN |
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1-119-96672-8 |
1-283-42538-6 |
9786613425386 |
1-119-96624-8 |
1-119-96625-6 |
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Edizione |
[1st ed.] |
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Descrizione fisica |
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1 online resource (300 p.) |
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Collana |
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Altri autori (Persone) |
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Disciplina |
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Soggetti |
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Medical care - Research |
Evidence-based medicine |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Description based upon print version of record. |
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Nota di bibliografia |
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Includes bibliographical references and index. |
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Nota di contenuto |
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A Practical Guide to Cluster Randomised Trials in Health Services Research; CONTENTS; Preface; Notation; Table of cases: Trials used as examples in more than one chapter in the book; 1: Introduction; 1.1 Introduction to randomised trials; 1.2 Explanatory or pragmatic trials; 1.3 How does a cluster randomised trial differ from other trials?; 1.3.1 Recruitment, randomisation and consent; 1.3.2 Definition of cluster size; 1.3.3 Analysis and sample size; 1.3.4 Interventions used in cluster randomised trials; 1.4 Between-cluster variability |
1.4.1 Factors that contribute to between-cluster variability1.4.1.1 Geographical reasons; 1.4.1.2 Individuals choose the cluster to belong to; 1.4.1.3 Healthcare provided to the cluster; 1.4.2 Measuring between-cluster variability; 1.5 Why carry out cluster randomised trials?; 1.5.1 The intervention necessarily acts at the cluster level; 1.5.2 Practical and/or ethical difficulties in randomising at individual level; 1.5.3 Contamination at health professional level; 1.5.4 Contamination between members of a cluster; 1.5.5 Cost or administrative convenience |
1.5.6 Ensuring intervention is fully implemented1.5.7 Access to routine |
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data; 1.6 Quality of evidence from cluster randomised trials; 1.6.1 External validity; 1.6.2 Internal validity; 1.6.3 Balancing internal validity, external validity and ethical issues; 1.7 Historical perspectives; 1.7.1 Early cluster randomised trials; 1.7.2 Early cluster randomised trials in health up to 2000; 1.7.3 Recent methodological developments; 1.7.3.1 Methods of analysis; 1.7.3.2 Sample size; 1.7.3.3 Estimating the intra-cluster correlation coefficient; 1.7.3.4 Reporting guidelines |
1.7.3.5 Recruitment and consent1.7.3.6 Complex interventions; 1.7.3.7 Other topics; 1.8 Summary; References; 2: Recruitment and ethics; 2.1 Selecting clusters and participants to enhance external validity; 2.1.1 Clusters; 2.1.2 Participants; 2.2 Ethics of cluster randomised trials; 2.2.1 Components of consent; 2.2.2 Classification of interventions and implications for individual participant consent; 2.2.2.1 Individual-cluster interventions; 2.2.2.2 Professional-cluster interventions; 2.2.2.3 External-cluster interventions; 2.2.2.4 Cluster-cluster interventions |
2.2.2.5 Multifaceted interventions2.2.3 Cluster guardians; 2.2.4 Timing of cluster consent; 2.2.5 Fully informed consent for educational and awareness campaigns; 2.2.6 Protecting the privacy of individuals; 2.2.7 Duty of care to control participants; 2.2.8 Summary of consent issues; 2.3 Selection and recruitment of participants to enhance internal validity; 2.3.1 Trials which identify and recruit individual participants before randomisation (scenario 1); 2.3.2 Trials where individual participants are not recruited (scenario 2) |
2.3.3 Trials where participants are recruited after randomisation but blind to allocation status (scenario 3) |
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Sommario/riassunto |
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Cluster randomisedtrials are trials in which groups (or clusters) of individuals are randomly allocated to different forms of treatment. In health care, these trials often compare different ways of managing a disease or promoting healthy living, in contrast to conventional randomised trials which randomise individuals to different treatments, classically comparing new drugs with a placebo. They are increasingly common in health services research. This book addresses the statistical, practical, and ethical issues arising from allocating groups of individuals, or clusters, to different intervent |
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