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
- Chapter 10 Capacity of Wireless Mesh Networks
- Chapter 11 Autonomous Mobile Mesh Networks and their Design Challenges
- Chapter 12 Service Provisioning for Wireless Mesh Networks
- Chapter 13 Metro–Scale Wi–Fi Networks
- Chapter 14 Usage and Performance Comparison of Mobile Metro Mesh Networks
- Chapter 15 First, Second and Third Generation Mesh Architectures
- Chapter 16 Wireless Mesh Networks
- Part VI 802.11/Cellular Interworking
- Part VII Coexistence
- Part VIII 802.11 Network and Radio Resource Management
- 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 15 - First, Second and Third Generation Mesh Architectures
from Part V - 802.11 Mesh Networks
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
- Chapter 10 Capacity of Wireless Mesh Networks
- Chapter 11 Autonomous Mobile Mesh Networks and their Design Challenges
- Chapter 12 Service Provisioning for Wireless Mesh Networks
- Chapter 13 Metro–Scale Wi–Fi Networks
- Chapter 14 Usage and Performance Comparison of Mobile Metro Mesh Networks
- Chapter 15 First, Second and Third Generation Mesh Architectures
- Chapter 16 Wireless Mesh Networks
- Part VI 802.11/Cellular Interworking
- Part VII Coexistence
- Part VIII 802.11 Network and Radio Resource Management
- 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
Evolving from ad hoc 802.11 networking, earlier generations of wireless mesh provided basic networking over extended outdoor areas. With the emergence of demanding data applications along with video and voice, single-radio “First Generation” single-radio wireless mesh solutions are proving unsatisfactory in many of these demanding environments. Third Generation wireless mesh solutions are based on multi-radio backhauls and deliver 50-1000 times better performance, but some custom hardware-oriented approaches limit flexibility and create deployment challenges. Software-oriented Third Generation wireless mesh based on distributed dynamic radio intelligence delivers the same high performance but with the additional benefits of easier installation, better avoidance of interference, and the added flexibility of easy mobility. These new capabilities are enabling many new types of applications beyond the traditional wireless mesh metro/muni environment.
Introduction
Mesh network requirements have evolved from their military origins as requirements have moved from the battlefield to the service provider, and residential networking environments. Today, to cover large areas with a single wired Internet link, more cost effective and efficient means of bandwidth distribution are needed. This implies more relay nodes (hops) than were needed before. Further, growing demands for Video and Voice-over-IP require packets to be moved over the mesh at high speeds with both low latency and low jitter. These new mesh requirements (more hops to cover large areas, more efficient bandwidth distribution and better latency and jitter for Video and VoIP) has given rise to the third-generation of mesh architectures.
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- Information
- Emerging Technologies in Wireless LANsTheory, Design, and Deployment, pp. 317 - 328Publisher: Cambridge University PressPrint publication year: 2007