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
- Chapter 20 Coexistence of Unlicensed Wireless Networks
- Chapter 21 Coexistence of IEEE 802.11n and Bluetooth
- 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 21 - Coexistence of IEEE 802.11n and Bluetooth
from Part VII - Coexistence
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
- Chapter 20 Coexistence of Unlicensed Wireless Networks
- Chapter 21 Coexistence of IEEE 802.11n and Bluetooth
- 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
The development of the IEEE 802.11n standard amendment enables MIMO-OFDM waveform transmission in the 2.4 GHz band. Additional PHY modifications relative to 802.11a/g include 40 MHz channels, additional data tones in 20MHz channels, and rate 5/6 coding. MAC enhancements include two types of frame aggregation. In this paper we model and simulate the sensitivity of an 802.11n device in the presence Bluetooth interference. Spatial and temporal properties of both systems are considered. Results are provided in terms of packet error rate, throughput, and required separation between devices.
Introduction
The most current draft of IEEE 802.11n (11n) enables MIMO-OFDM waveform transmission in the 2.4 GHz band [11]. Therefore, analysis of IEEE 802.11b/g coexistence with Bluetooth (BT) devices [1], [2], [3], and [5] must be extended to cover 11n. Not only will 11n extend the physical layer (PHY) for spatial division multiplexing with one to four spatial streams, but will also increase the data rate with additional data tones in 20MHz as compared to 802.11g, and rate 5/6 coding. In addition, 11n will create a new 40 MHz channel width, for more than double the data rate, relative to 20 MHz transmissions.
The scope of 11n is to increase the throughput of IEEE 802.11, not just the PHY data rate. In order to do so, the efficiency of the medium access control (MAC) layer must also be improved. Two types of frame aggregation have been developed: aggregate MAC protocol data unit (A-MPDU) and aggregate MAC service data unit (A-MSDU).
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- Emerging Technologies in Wireless LANsTheory, Design, and Deployment, pp. 501 - 516Publisher: Cambridge University PressPrint publication year: 2007