Abstract
IEEE 802.11 wireless networks have gained ever greater popularity nowadays. Handoff is a critical issue in IEEE 802.11 based wireless networks and latency in the handoff process is a major concern.
In this paper, we propose to reduce handoff latency for IEEE 802.11 wireless networks with Neighbor Graphs (NG) pre-scanning mechanisms. IEEE 802.11 uses 11 channels of which the channels 1, 6 and 11 do not mutually overlap. So these channels are expected to have a lower carrier-to-interference ratio (CI) compared to the other channels present under the same base station, which increases the channel’s availability during handoff. Based on the NG pre-scanning mechanism, when handoff criterions have been met, we design an algorithm to first scan the channels 1, 6 and 11, if present under the next Access Point (AP), to reduce the scanning delay. We also introduce pre-authentication mechanism, which will effectively reduce the message processing delay.
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References
Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications. IEEE Standards (1999)
Puangkor, W., Pongpaibool, P.: A Survey of Techniques for Reducing Handover Latency and Packet Loss in Mobile IPv6
Taylor, M.S., Waung, W., Banan, M.: Internetwork Mobility The CDPD Approach. Pearson Education, Inc., London
Kim, H.-S., Park, S.H., Park, C.-S., Kim, J.W., Ko, S.-J.: Selective Channel Scanning for Fast Handoff in Wireless LAN using Neighbor Graph (July 2004)
Teng, J., Xu, C., Jia, W., Xuan, D.: D-scan: Enabling Fast and Smooth Handoffs in AP-dense 802.11 Wireless Networks
Zhai, H., Chen, X., Fang, Y.: How well can the IEEE 802.11 wireless lan support quality of service? IEEE Transactions on Wireless Communications 4(6), 3084–3094 (2005)
Huang, P.-J., Tseng, Y.-C.: A Fast Handoff Mechanism for IEEE 802.11 and IAPP Networks
Ohta, M.: Smooth Handover over IEEE 802.11 Wireless LAN, Internet Draft: draft-ohta-smooth-handover-wlan-00.txt (June 2002)
Powar, Y.A., Apte, V.: Improving the IEEE 802.11 MAC Layer Handoff Latency to Support Multimedia Traffic
Kim, E.-D., Ahn, D.-K., Kim, S.-Y., Cho, S.-J.: Improvement of Pre-authentication with Neighbor Graph for Fast Handoff in WLANs
Mishra, A., Shin, M., Arbaugh, W.: An Empirical Analysis of the IEEE 802.11 Mac Layer Handoff Process. In: ACM SIGCOM 2003 (April 2003)
IEEE, part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specification. IEEE Standard 802.11 (1999)
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Sarddar, D., Banerjee, J., Saha, S.K., Biswas, U., Naskar, M.K. (2010). Reducing Handoff Latency in IEEE 802.11b with the Help of Neighbor Graph Using Carrier to Interference Ratio. In: Meghanathan, N., Boumerdassi, S., Chaki, N., Nagamalai, D. (eds) Recent Trends in Networks and Communications. WeST VLSI NeCoM ASUC WiMoN 2010 2010 2010 2010 2010. Communications in Computer and Information Science, vol 90. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-14493-6_43
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DOI: https://doi.org/10.1007/978-3-642-14493-6_43
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-14492-9
Online ISBN: 978-3-642-14493-6
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