Browse > Article

The hybrid method of Listen-Before-Talk and Adaptive Frequency Hopping for coexistence of Bluetooth and WLAN  

Bin Zhen ((주) 삼성종합기술원 i-Networking Lab)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.27, no.7B, 2002 , pp. 706-718 More about this Journal
Abstract
In bluetooth system, there are two kinds of interference. One is the frequency static interference, for example 802.11 direct sequence, the interferer uses fixed frequency band. Another is frequency dynamic interference, for example other piconets or 802.11 frequency hopping, the interferer uses dynamic frequency channel and cant be estimated. In this paper we introduce a novel solution of hybrid method of Listen-Before-Talk (LBT) and Adaptive Frequency Hopping (AFH) to address the coexistence of bluetooth and Direct Sequence of wireless local area network (WLAN). Before any bluetooth packet transmission, in the turn around time of the current slot, both the sender and receiver sense the channel whether there is any transmission going on or not. If the channel is busy, packet transmission is withdrawn until another chance. This is the LBT in Bluetooth. Because of asymmetry sense ability of WLAN and bluetooth, AFH is introduced to combat the left front-edge packet collisions. In monitor period of AFH, LBT is performed to label the channels with static interference. Then, all the labeled noisy channels are not used in the followed bluetooth frequency hopping. In this way, both the frequency dynamic and frequency static interference are effectively mitigated. We evaluate the solution through packet collision analysis and a detail realistic simulation with IP traffic. It turns out that the hybrid method can combat both the frequency dynamic and frequency static interference. The packet collision analysis shows it almost doubles the maximal system aggregate throughput. The realistic simulation shows it has the least packet loss.
Keywords
bluetooth; 802.11; WLAN; WPAN; coexistence; listen-before-talk; adaptive frequency hopping; performance evaluation;
Citations & Related Records
연도 인용수 순위
  • Reference
1 A. Kameman, 'Coexistence between Bluetooth and IEEE 802.11 CCK: Solution to avoid mutual interference,' IEEE 802.11-00/162r0, IEEE 802.11, Jul. 2000
2 Bluetooth Special Interest Group, 'Specification of the Bluetooth system. Core, Version 1.0B,' December 1999
3 S. Zurbes, W. Stahl, K. Matheus and J. Harrtsen, 'Radio network performance of bluetooth,' Proc. Of IEEE ICC2000, vol. 3, pp. 1536-1567
4 M. K. Simon and C. C. Wang, 'Differential versus limiter-dischminator detection ofnarrow-band FM,' IEEE Trans. On Communication, vol. 31, pp. 1227-1234, 1983
5 J. Lansford, R. Nevo, and E. Zehavi, 'MEHTA: A method for coexistence betweenco-located 802. 11b and Bluetooth systems,' IEEE 802.15-00/360r0, IEEE 802.15, Nov.2000
6 IEEE std. 802-11, 'IEEE standard for wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specification,' 1997
7 R. C. Braley, I.C. Gifford and R.P. Heile, 'Wireless personal area network: an overview of the IEEE P802.16 working group,' Mobilecomputing and Comm. review, vo1.4, no. 1,pp.20-27, 1999
8 G. Ennis, 'Impact of Bluetooth on 802.11 Direct Sequence,' in IEEE P802.11-98/319, IEEE 802.75, Sep. 1998
9 M. B. Shoemake, 'Proposal for non-collaborative 802.11 MAC mechanisms for enhancing coexistence: fragmentation,' IEEE 802.15-01/083, IEEE 802.15, Jan. 2001
10 J. Zyren, 'Extension of bluetooth and 802.11direct sequence model,' in IEEE P802.11-98/378, IEEE 802.15, Nov. 1998
11 N. Golmie, 'Impact of interference on the bluetooth access control performance:preliminary results,' IEEE 802.15-00/322r0, IEEE 802.15, 2000
12 J. Zander and G. Malmgren, 'Adaptive frequency hopping in HF communication,' IEEpro. Commun., vol. 142, no. 2, pp. 99-105, 1995
13 J. C. Harrtsen, 'Bluetooth voice and data performance in 802.11 DS WLAN environment,' Bluetooth SIG publication, 1999
14 N. Golmie, R.E. Van Dyck, amd A. Soltanian, 'Bluetooth and 802.11b interference: Simula-tion model and system result,' IEEE802.15-01/195r0, IEEE 802.15, Apr. 2001
15 S. Shellhammer, 'Collaborative coexistence mechanism submission: TDMA of 802.11 and Bluetooth,' IEEE 802.15-01/025r0, IEEE802.15, Nov. 2000
16 H. Gan and B. Treister, 'Adaptive frequency hopping implementation proposals for IEEE 802.15.1/2 WPAN,' IEEE 802.15-00/367r0, IEEE 802.15, Nov. 2000
17 V. Mitter, I. Howitt and J. Gutierrez, 'Empirical Study for IEEE802.11b WLAN & Bluetooth Coexistence in UL Band,' IEEE802.15-01/148r0, IEEE 802.15, 2001