Alexander Optimizing and Testing WLANs

Proven Techniques for Maximum Performance
1. Auflage 2011
ISBN: 978-0-08-055112-8
Verlag: Elsevier Science & Techn.
Format: PDF
Kopierschutz: 1 - PDF Watermark

E-Book, Englisch, 280 Seiten, Web PDF

Optimizing and Testing WLANs explores proven techniques for maximizing the coverage area and performance of wireless networks. The author's insider position on the IEEE committee developing standards for WLAN testing ensures timeliness and technical integrity of the material. The book includes coverage of newer multiple input/multiple output (MIMO) wireless networks. The techniques provided will allow engineers to help maintain continuous wireless connectivity to laptops and other mobile devices. Optimizing and Testing WLANs is the first book to address the need to test WLANs (Wireless Local Area Networks) for proper performance and to optimize their operation as they become increasingly common. It covers test equipment and methods for the RF (wireless) and physical layers of WLAN, protocols, the application layer, and manufacturing testing. The emphasis throughout is on underlying engineering principles along with modern metrics and methodologies, ensuring this book gives both a solid theoretical background along with field-proven techniques and applications. A particularly engaging chapter deals with manufacturing test that describes some of the different manufacturing test setups and equipment. A concise introduction to deployment testing of 'hotspots' and WLANs in enterprises is also provided. This text will be of interest to RF wireless engineers and designers, networking engineers, IT professionals and managers, and graduate students.*Gives proven techniques for maximizing the coverage area and performance of wireless networks
*Author's insider position on the IEEE committee developing standards for WLAN testing ensures timeliness and technical integrity of the material
*Includes coverage of newer multiple input/multiple output (MIMO) wireless networks

Autoren/Hrsg.

Alexander, Tom

Inhaltsverzeichnis

1;Front cover;1
2;Optimizing and Testing WLANs;4
3;Copyright page;5
4;Contents;6
5;Preface;10
6;Introduction;12
7;Chapter 1: IEEE 802.11 WLAN Systems;16
7.1;1.1 IEEE 802.11 Wireless Local Area Networks;16
7.2;1.2 WLAN Standards Today;18
7.3;1.3 Inside WLAN Devices;28
7.4;1.4 The RF Layer;34
8;Chapter 2: Metrology, Test Instruments, and Processes;42
8.1;2.1 Metrology: the Science of Measurement;42
8.2;2.2 The Nomenclature of Measurement;43
8.3;2.3 Measurement Quality Factors;46
8.4;2.4 The WLAN Engineer's Toolbox;48
8.5;2.5 Test Setups and Test Processes;52
8.6;2.6 Repeatability;63
9;Chapter 3: WLAN Test Environments;70
9.1;3.1 Wired vs. Wireless;70
9.2;3.2 Types of Environments;71
9.3;3.3 Outdoor and Indoor OTA;74
9.4;3.4 Chambered OTA Testing;79
9.5;3.5 Conducted Test Setups;84
9.6;3.6 Repeatability;87
10;Chapter 4: Physical Layer Measurements;90
10.1;4.1 Types of PHY Layer Measurements;90
10.2;4.2 Transmitter Tests;92
10.3;4.3 Receiver Tests;105
10.4;4.4 Electromagnetic Compatibility Testing;109
10.5;4.5 System Performance Tests;114
10.6;4.6 Getting the DUT to Respond;120
11;Chapter 5: Protocol Testing;124
11.1;5.1 An Introduction to Protocol Testing;124
11.2;5.2 Conformance and Functional Testing;126
11.3;5.3 Interoperability Testing;132
11.4;5.4 Performance Testing;136
11.5;5.5 Standardized Benchmark Testing;148
12;Chapter 6: Application-Level Measurements;152
12.1;6.1 System-level Measurements;152
12.2;6.2 Application Traffic Mixes;161
12.3;6.3 VoIP Testing;165
12.4;6.4 Video and Multimedia;173
12.5;6.5 Relevance and Repeatability;177
13;Chapter 7: WLAN Manufacturing Test;180
13.1;7.1 The WLAN Manufacturing Flow;180
13.2;7.2 Manufacturing Test Setups;186
13.3;7.3 Radio Calibration;190
13.4;7.4 Programming;191
13.5;7.5 Functional and System Testing;192
13.6;7.6 Failure Patterns;194
14;Chapter 8: Installation Test;196
14.1;8.1 Enterprise WLANs;196
14.2;8.2 Hot-spots;203
14.3;8.3 The Site Survey;205
14.4;8.4 Propagation Analysis and Prediction;211
14.5;8.5 Maintenance and Monitoring;217
15;Chapter 9: Testing MIMO Systems;222
15.1;9.1 What is MIMO?;222
15.2;9.2 The IEEE 802.11n PHY;234
15.3;9.3 A New PLCP/MAC Layer;240
15.4;9.4 The MIMO Testing Challenge;246
15.5;9.5 Channel Emulation;248
15.6;9.6 Testing 802.11n MIMO Devices;252
16;Appendix A: A Standards Guide;256
16.1;A.1 FCC Part 15;256
16.2;A.2 IEEE 802.11;257
16.3;A.3 Wi-Fi® Alliance;258
16.4;A.4 CTIA;258
16.5;A.5 IETF BMWG;259
17;Appendix B: Selected Bibliography;260
18;Index;264
18.1;A;264
18.2;B;264
18.3;C;264
18.4;D;264
18.5;E;265
18.6;F;265
18.7;G;265
18.8;H;265
18.9;I;265
18.10;J;266
18.11;L;266
18.12;M;266
18.13;N;266
18.14;O;266
18.15;P;266
18.16;Q;267
18.17;R;267
18.18;S;267
18.19;T;267
18.20;U;267
18.21;V;267
18.22;W;268