Special Issue on Performance Evaluation of Wireless NetworksNo Access

WEIGHTED CHANNEL ALLOCATION AND POWER CONTROL FOR SELF-CONFIGURABLE INFRASTRUCTURE WLANS

SUPARERK MANITPORNSUT

School of Information Technologies, University of Sydney, Sydney, NSW 2006, Australia

Suparerk Manitpornsut is on leave from School of Engineering, University of the Thai Chamber of Commerce, Thailand.

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and

BJÖRN LANDFELDT

School of Information Technologies, University of Sydney, Sydney, NSW 2006, Australia

National ICT Australia (NICTA), Sydney, Australia

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https://doi.org/10.1142/S021926590800228XCited by:2 (Source: Crossref)

Abstract

IEEE802.11 WLANs show increasing growth in popularity. Since these networks operate in the unlicensed ISM bands where the number of non-overlapping channels is limited, the growing number of wireless nodes leads to interference. It is well known that the interference leads to degraded performance of WLANs, especially in densely populated areas where the number of overlapping nodes is very large. Channel assignment algorithms have been proposed in recent years, in order to minimize or avoid interference between neighboring access points and hence alleviating the problem. In particular, weighted assignment algorithms have been frequently occurring in the literature. However, the effects of these algorithms are currently not well understood. In this paper, we present results, which show that weighted channel assignment algorithms that do not consider traffic categories can lead to heavy interference among WLANs with delay sensitive traffic, e.g. voice traffic. In order to overcome this, we instead propose a weighted access category channel assignment algorithm (WACCA). We present results from experiments, which show that WACCA achieves a small degree of Interference (DOI) as compared with a greedy algorithm. We also show that there is a tradeoff with convergence time. Furthermore, we propose an integration of WACCA with dynamic transmission power control and show how this combined method produces even more gain.

Keywords:

References

"IEEE standard for information technology - telecommunications and information exchange between systems - local and metropolitan area networks - specific requirement. Part 11: wireless LAN medium access control (MAC) and Physical layer (PHY) specifications. Amendment 2: higher-speed physical layer (PHY) extension in the 2.4 GHz band - corrigendum 1," IEEE Std 802.11b-1999/Cor 1-2001, 2001 . Google Scholar
A. P. Jinet al., Experiments on radio interference between wireless LAN and other radio devices on a 2.4 GHz ISM band, The 57th IEEE Semiannual Vehicular Technology Conference3 (2003) pp. 1798–1801. Google Scholar
"Effects of Microwave Interference On IEEE 802.11 WLAN Reliability," Intersil Corporation, 1998 . Google Scholar
Y. Matsumotoet al., Electromagnetic Compatibility, IEEE Transactions on 47, 45 (2005), DOI: 10.1109/TEMC.2004.842114. Web of Science, Google Scholar
J. Geier, "Interference from Cordless Phones," Available at: http://www.wifiplanet.com/tutorials/article.php/2191241 . Google Scholar
"Specification of the Bluetooth System: Covered Core Package version 2.0 + EDR," 2004 . Google Scholar
Q. Daji et al. , Adaptive transmit power control in IEEE 802.11a wireless LANs , presented at The 57th IEEE Semiannual Vehicular Technology Conference ( 2003 ) . Google Scholar
J. Liu and J. Zhou , Power Control Based on Game theory and Iterative Multiuser Detectors , presented at International Conference on Communications, Circuits and Systems ( 2005 ) . Google Scholar
Z. I. Dafallaet al., Radio resource management for WLAN networks through power control, IEEE International Conference on Networks2 (2005) p. 6. Google Scholar
J. P. Monks , V. Bharghavan and W.-M. W. Hwu , A Power Controlled Multiple Access Protocol for Wireless Packet Networks , INFOCOM ( 2001 ) . Google Scholar
K. N. Sivarajan , R. J. McEliece and J. W. Ketchum , Dynamic channel assignment in cellular radio , presented at Vehicular Technology Conference ( 1990 ) . Google Scholar
K. Okada and F. Kubota , On dynamic channel assignment in cellular mobile radio systems , presented at IEEE International Symposium on Circuits and Systems ( 1991 ) . Google Scholar
J. Yang and C. Shixin, "A new dynamic channel assignment strategy in cellular mobile communication systems," 1992 . Google Scholar
Z. Xu and P. B. Mirchandani , Virtually fixed channel assignment for cellular radio-telephone systems: a model and evaluation , presented at IEEE International Conference on Discovering a New World of Communications ( 1992 ) . Google Scholar
G. D. L. A. M. J. Mehler, Antennas and Propagation (1995). Google Scholar
M. Zafer and E. Modiano, IEEE Transactions on Wireless Communications 5, 869 (2006), DOI: 10.1109/TWC.2006.1618936. Web of Science, Google Scholar
A. Sen, T. Roxborough and S. Medidi, Upper and lower bounds of a class of channel assignment problems in cellular networks, INFOCOM 983 (1998) pp. 1284–1291. Google Scholar
A. Sen, T. Roxborough and B. P. Sinha, On an optimal algorithm for channel assignment in cellular networks, IEEE International Conference on Communications2 (1999) pp. 1147–1151. Google Scholar
M. Iridon, D. Matula and C. Yang, Wireless Networks 7, (2001), DOI: 10.1023/A:1012359132263. Google Scholar
M. X. Gong , S. E. Midkiff and M. Shiwen , Design principles for distributed channel assignment in wireless ad hoc networks , presented at IEEE International Conference on Communications ( 2005 ) . Google Scholar
P.-J. Wanet al., Wireless Communications and Mobile Computing 6, 201 (2006), DOI: 10.1002/wcm.380. Web of Science, Google Scholar
M. X. Chenget al., New graph model for channel assignment in ad hoc wireless networks, Communications, IEE Proceedings-152 (2005) pp. 1039–1046. Google Scholar
M. Xiangrui , T. Kun and Z. Qian , Joint Routing and Channel Assignment in Multi-Radio Wireless Mesh Networks , presented at IEEE International Conference on Communication 2006 ( 2006 ) . Google Scholar
K. N. Ramachandran et al. , Interference-Aware Channel Assignment in Multi-Radio Wireless Mesh Networks , presented at IEEE International Conference on Computer Communications (INFOCOM) ( 2006 ) . Google Scholar
S. Ashish et al. , Throughput Enhancement through Efficient Channel Assignment in Multi-radio Ad Hoc Networks , presented at International Telecommunications Network Strategy and Planning Symposium ( 2006 ) . Google Scholar
L. Velezet al., Trends (2006). Google Scholar
B.-J. J. K. Kin K. Leung, "Frequency Assignment for Multi-Cell IEEE 802.11 Wireless Networks," 2003 . Google Scholar
J. Riihijarvi , M. Petrova and P. Mahonen , Frequency allocation for WLANs using graph colouring techniques , presented at Proceedings of the Second Annual Conference on Wireless On-demand Network Systems and Services ( 2005 ) . Google Scholar
A. Mishra, S. Banerjee and W. Arbaugh, Mobile Computing and Communications Review (2005). Google Scholar
S. Manitpornsut and B. Landfeldt , On the Performance of IEEE 802.11 QoS Mechanisms under Spectrum Competition , IWCMC ( 2006 ) . Google Scholar
J. P. Pavon and C. Sunghyun , Link adaptation strategy for IEEE 802.11 WLAN via received signal strength measurement , presented at IEEE International Conference on Communications ( 2003 ) . Google Scholar
C. Jianconget al., IEEE Journal on Selected Areas in Communications 21, 1663 (2003). Web of Science, Google Scholar
"Cisco Wireless Control System Configuration Guide", Available at http://www.cisco.com/application/pdf/en/us/guest/products/ps6305/c2001/ccmigration_09186a00806b6157.pdf . Google Scholar
"OPNET Modeler," Available at http://www.opnet.com/support/ . Google Scholar
ITU-T, "General Characteristics of International Telephone Connections and International Telephone Circuits One-Way Transmission Time G.114," 1996 . Google Scholar