LTE Communications and Networks (eBook, PDF)

Femtocells and Antenna Design Challenges
Redaktion: Ur Rehman, Masood; Ali Safdar, Ghazanfar

• Format: PDF

Produktbeschreibung

A comprehensive resource to the latest developments of system enhancement techniques of Femtocells, power management, interference mitigation and antenna design LTE Communications and Networks fills a gap in the literature to offer a comprehensive review of the most current developments of LTE Femtocells and antennas and explores their future growth. With contributions from a group of experts that represent the fields of wireless communications and mobile communications, signal processing and antenna design, this text identifies technical challenges and presents recent results related to the development, integration and enhancement of LTE systems in portable devices. The authors examine topics such as application of cognitive radio with efficient sensing mechanisms, interference mitigation and power management schemes for the LTE systems. They also provide a comprehensive account of design challenges and approaches, performance enhancement techniques and effects of user's presence on the LTE antennas. LTE Communications and Networks also highlights the promising technologies of multiband, multimode and reconfigurable antennas for efficient design of portable LTE devices. Designed to be a practical resource, this text: * Explores the interference mitigation, power control and spectrum management in LTE Femtocells and related issues * Contains information on the design challenges, different approaches, performance enhancement and application case scenarios for the LTE antennas * Covers the most recent developments of system enhancement techniques in terms of Femtocells, power management, interference mitigation and antenna design * Includes contributions from leading experts in the field Written for industry professionals and researchers, LTE Communications and Networks is a groundbreaking book that presents a comprehensive treatment to the LTE systems in the context of Femtocells and antenna design and covers the wide range of issues related to the topic.

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Produktdetails

• Verlag: John Wiley & Sons
• Seitenzahl: 360
• Erscheinungstermin: 18. April 2018
• Englisch
• ISBN-13: 9781119385240
• Artikelnr.: 53058727

Autorenporträt

DR. MASOOD UR REHMAN is a Lecturer in Electronic Engineering at the University of Bedfordshire, UK. He has authored four books, eight book chapters, more than eighty technical papers in leading journals and peer-reviewed conferences, and one patent in the area of antennas and RF systems. DR. GHAZANFAR ALI SAFDAR is a Senior Lecturer in Computer Networking at the University of Bedfordshire, UK. He has authored two books, nine book chapters and approximately sixty research papers in renowned journals and peer-reviewed conferences in the area of wireless communications and networking.

Inhaltsangabe

List of Contributors xv

Preface xvi

1 Introduction 1
Ghazanfar Ali Safdar and Masood Ur Rehman

1.1 Evolution of Wireless and Cellular Communication 2

1.1.1 1 G 3

1.1.2 2 G 3

1.1.3 2.5 G 3

1.1.4 2.75 G 4

1.1.5 3 G 4

1.1.6 3.5 G 4

1.1.7 4 G/LTE 5

1.2 LTE Architecture 5

1.2.1 Communications Perspective Challenges in LTE Networks 8

1.2.1.1 Signalling System 8

1.2.1.2 Backward Compatibility 9

1.2.1.3 BS Efficiency 9

1.2.2 LTE Radio Frame 10

1.3 LTE Antennas 11

1.4 LTE Applications 11

1.4.1 Communications 11

1.4.2 Public Safety 12

1.4.3 Device?]to?]Device Communications 12

1.4.4 Video Streaming 12

1.4.5 Voice over LTE (VoLTE) 12

1.4.6 Internet of Things 13

1.4.7 Wearable Systems 13

1.4.8 Cloud Computing 13

1.5 Book Organization 14

References 16

Part I LTE Femtocells 19

2 LTE Femtocells 21
Ghazanfar Ali Safdar

2.1 Introduction 21

2.1.1 Cross?]Tier Interference 22

2.1.2 Co?]Tier Interference 24

2.1.3 Downlink Interference Modelling 24

2.1.4 Uplink Interference Modelling 25

2.2 Platform for Femtocell Deployment 26

2.3 LTE Architecture Overview 26

2.3.1 LTE Downlink Transmission 27

2.3.2 LTE Uplink Transmission 27

2.4 LTE Femtocell Interference Analysis 28

2.4.1 Scenario 1: Cross?]Tier Interference Analysis 28

2.4.2 Scenario 2: Effects of Femtocell Access Mode Deployment 28

2.4.3 Scenario 3: Co?]Tier Interference Analysis 29

2.4.4 Scenario 4: Effects of Varying FAP Transmit Power Levels on MUEs 29

2.5 Interference Mitigation: Current State of the Art 31

2.5.1 Spectrum Access/Frequency Assignment 31

2.5.2 Power Control 32

2.5.3 Antenna Schemes 33

2.6 Cognitive Femtocells: A Smart Solution to a Complex Problem 33

2.7 Summary 35

References 36

3 Interference Mitigation in Cognitive Radio?]Based LTE Femtocells 38
Ghazanfar Ali Safdar

3.1 Introduction 39

3.2 Femtocells 41

3.2.1 Femtocells - Interference versus Deployment 43

3.2.2 Femtocells - Typical Interference Mitigation Techniques 46

3.2.2.1 Spectrum Access/Frequency Assignment Schemes 46

3.2.2.2 Power Control (PC) Schemes 46

3.2.2.3 Antenna Schemes 48

3.3 Interference Mitigation in Femtocells using Cognitive Radio 49

3.3.1 Cognitive Interference Mitigation 51

3.3.1.1 Cognitive Interference Mitigation - PC 52

3.3.1.2 Cognitive Interference Mitigation - Spectrum Access 54

3.3.1.3 Cognitive Interference Mitigation - Antenna Schemes 64

3.3.1.4 Cognitive Interference Mitigation - Joint Schemes 66

3.3.2 Cognitive Interference Mitigation versus Conventional Interference Mitigation 70

3.4 Summary 74

References 75

4 Coverage Area?]Based Power Control for Interference Management in LTE Femtocells 84
Ghazanfar Ali Safdar

4.1 Introduction 85

4.2 Coverage Radius Based Power Control Scheme (PS) 88

4.2.1 Radius Limit Setting 89

4.2.2 Initial Coverage Radius 89

4.2.3 Self?]Update 89

4.2.4 Final Radius 89

4.3 System Model 90

4.4 Performance Analysis 92

4.4.1 Results and Discussion 93

4.4.1.1 SINR Cross?]Tier (Single Cell) 93

4.4.1.2 SINR Co?]Tier (Single Cell) 94