Book contents
- Frontmatter
- Contents
- Authorship by Chapter
- Foreword
- Preface
- Part I Introduction to 802.11
- Part II 802.11 Quality of Service
- Part III 802.11 Security
- Part IV High Throughput 802.11
- Part V 802.11 Mesh Networks
- Part VI 802.11/Cellular Interworking
- Part VII Coexistence
- Part VIII 802.11 Network and Radio Resource Management
- Chapter 22 Measured WLANs: The First Step to Managed WLANs
- Chapter 23 Cognitive WLAN: A Better Architecture
- Part IX 802.11 Range
- Part X 802.11 Hardware Design
- Part XI Wi-Fi Hotspots
- Part XII Wi-Fi Applications
- Part XIII Ultra WideBand (UWB)
- Part XIV Public Wireless Broadband
- Epilogue
- Index
Chapter 23 - Cognitive WLAN: A Better Architecture
from Part VIII - 802.11 Network and Radio Resource Management
Published online by Cambridge University Press: 10 December 2009
- Frontmatter
- Contents
- Authorship by Chapter
- Foreword
- Preface
- Part I Introduction to 802.11
- Part II 802.11 Quality of Service
- Part III 802.11 Security
- Part IV High Throughput 802.11
- Part V 802.11 Mesh Networks
- Part VI 802.11/Cellular Interworking
- Part VII Coexistence
- Part VIII 802.11 Network and Radio Resource Management
- Chapter 22 Measured WLANs: The First Step to Managed WLANs
- Chapter 23 Cognitive WLAN: A Better Architecture
- Part IX 802.11 Range
- Part X 802.11 Hardware Design
- Part XI Wi-Fi Hotspots
- Part XII Wi-Fi Applications
- Part XIII Ultra WideBand (UWB)
- Part XIV Public Wireless Broadband
- Epilogue
- Index
Summary
Introduction
If you are reading this book, I probably do not have to convince you that wireless LANs (WLANs) are experiencing dramatic growth and are rapidly becoming an entrenched technology in every day life. Today, we see that WLANs have become a competitive differentiator for hotels, multi-tenant dwellings, coffee shops and other establishments where customers are expected and encouraged to stay for more than a few quick moments. Conversely, it is quickly becoming a negative distinction to not have WLAN services in those circumstances.
Like the personal computer revolution before it, as WLAN products permeate applications from the least significant to the mission critical, product lines are stratifying to serve those new and different market segments. However, with this increased popularity and diversity, comes increased deployment at the hands of those that do not understand, and should not need to, the intricacies of RF propagation and network management, often resulting in poor performance and disillusionment with the technology.
To date, two architectures have emerged as the leading approaches to WLAN implementation: independent and dependent. The independent architecture was first to arrive and is a logical extension of standard bridging practices followed in the wired LAN (Ethernet) world. With this approach, access points (APs) are treated as individually managed edge devices. Each AP is configured and managed independently from other peer APs irrespective of whether or not the APs belong to a specific administrative domain.
- Type
- Chapter
- Information
- Emerging Technologies in Wireless LANsTheory, Design, and Deployment, pp. 523 - 534Publisher: Cambridge University PressPrint publication year: 2007