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A QoS Oriented Vertical Handoff Scheme for WiMAX/WLAN Overlay Networks
April 2012 (vol. 23 no. 4)
pp. 598-606
Dong Ma, Nanyang Technological University, Singapore
Maode Ma, Nanyang Technological University, Singapore
Recently, a number of wireless communication technologies are migrating toward heterogeneous overlay networks. The integration of Mobile WiMAX and WLAN seems to be a promising approach due to their homogeneous nature and complementary characteristics. In this paper, we investigate several important issues for the interworking of Mobile WiMAX and WLAN networks. We address a tightly coupled interworking architecture. Further, a seamless and proactive vertical handoff scheme is designed based on the architecture with aims to provide always the best quality of service (QoS) for users. Both the performance of applications and network conditions are considered in the handoff process. Moreover, we derive evaluation algorithms to estimate the conditions of both WiMAX and WLAN networks in terms of available bandwidth and packet delay. A simulation study has demonstrated that the proposed schemes can keep stations always being best connected.

[1] C.W. Lee, L.M. Chen, M.C. Chen, and Y.S. Sun, "A Framework of Handoffs in Wireless Overlay Networks Based on Mobile IPv6," IEEE J. Selected Areas Comm., vol. 23, no. 11, pp. 2118-2128, Nov. 2005.
[2] N. Nasser, A. Hasswa, and H. Hassanein, "Handoffs in Fourth Generation Heterogeneous Networks," IEEE Comm. Magazine, vol. 44, no. 10, pp. 96-103, Oct. 2006.
[3] C. Guo, Z. Guo, Q. Zhang, and W. zhu, "A Seamless and Proactive End-to-End Mobility Scheme for Roaming across Heterogeneous Wireless Networks," IEEE J. Selected Areas Comm., vol. 22, no. 5, pp. 834-848, June 2004.
[4] G. Lampropoulos, N. Passas, L. Merakos, and A. Kaloxylos, "Handover Management Architectures in Integrated WLAN/Cellular Networks," IEEE Comm. Surveys and Tutorials, vol. 7, no. 4, pp. 30-44, Oct.-Dec. 2005.
[5] A.B. Pontes, D.D.P. Silva, J. Jailton, O. Rodrigues, and K.L. Dias, "Handover Management in Integrated WLAN and Mobile WIMAX Networks," IEEE Wireless Comm., vol. 15, no. 5, pp. 86-95, Oct. 2008.
[6] W.S. Lim, D.W. Kim, Y.J. Suh, and J.J. Won, "Implementation and Performance Study of IEEE 802.21 in Integrated IEEE 802.11/802.16e Networks," Computer Comm., vol. 32, no. 1, pp. 134-143, Jan. 2009.
[7] C. Youngkyu and C. Sunghyun, "Service Charge and Energy-Aware Vertical Handoff in Integrated IEEE 802.16e/802.11 Networks," Proc. IEEE INFOCOM, pp. 589-597, 2007.
[8] C.C. Yang, C.S. Tsai, J.Y. Hu, and T.C. Chuang, "On the Design of Mobility Management Scheme for 802.16e-Based Network Environment," Computer Network, vol. 51, no. 8, pp. 2049-2066, June 2007.
[9] W. Lee, E. Kim, J. Kim, I. Lee, and C. Lee, "Movement-Aware Vertical Handoff of WLAN and Mobile WiMAX for Seamless Ubiquitous Access," IEEE Trans. Consumer Electronics, vol. 53, no. 4, pp. 1268-1275, Nov. 2007.
[10] W. Yang, Y. Wang, Y. Tseng, and B.P. Lin, "Energy-Efficient Network Selection with Mobility Pattern Awareness in an Integrated WiMAX and WiFi Network," Int'l J. Comm. System, vol. 23, no. 2, pp. 213-230, Feb. 2010.
[11] J.J.J. Roy, V. Vaidehi, and S. Srikanth, "Always Best-Connected QoS Integration Model for the WLAN, WiMAX Heterogeneous Network," Proc. First Int'l Conf. Industrial and Information Systems (ICIIS), pp. 361-366, Aug. 2006.
[12] S.F. Yang and J.S. Wu, "Handoff Management Schemes across Hybrid WiMAX and Wi-Fi Networks," Proc. IEEE TENCON, pp. 680-683, 2007.
[13] M.J. Kim, S.W. Son, and B.H. Rhee, "QoS Based Provisioning Vertical Handover between IEEE 802.11 and 802.16," Proc. 11th Int'l Conf. Advanced Comm. Technology (ICACT), pp. 1415-1418, Feb. 2009.
[14] Z. Dai, R. Fracchia, J. Gosteau, P. Pellati, and G. Vivier, "Vertical Handover Criteria and Algorithm in IEEE 802.11 and 802.16 Hybrid Networks," Proc. IEEE Int'l Conf. Comm. (ICC), pp. 2480-2484, May 2008.
[15] D. Ma and M. Ma, "A QoS-Based Vertical Handoff Scheme for Interworking of WLAN and WiMAX," Proc. IEEE Global Telecomm. Conf. (GLOBECOM), pp. 2260-2265, Nov./Dec., 2009.
[16] A.V. Garmonov et al., "QoS-Oriented Intersystem Handover between IEEE 802.11b and Overlay Networks," IEEE Trans. Vehicular Technology, vol. 57, no. 2, pp. 1142-1154, Mar. 2008.
[17] D.C. Plummer, "An Ethernet Address Resolution Protocol (ARP)," IETF RFC 826, Nov. 1982.
[18] R. Prasad, C. Dovrolis, M. Murray, and K. Claffy, "Bandwidth Estimation: Metrics, Measurement Techniques, and Tools," IEEE Network, vol. 17, no. 6, pp. 27-35, Nov./Dec. 2003.
[19] IEEE Std 802.16 - 2009 "IEEE Standard for Local and Metropolitan Area Networks—Part 16: Air Interface for Broadband Wireless Access Systems," May 2009.
[20] B. Kim, J. Yun, Y. Hur, C. So-In, R. Jain, and A.K. Al Tamimi, "Capacity Estimation and TCP Performance Enhancement over Mobile WiMAX Networks," IEEE Comm. Magazine, vol. 47, no. 6, pp. 132-141, June 2009.
[21] D. Chuck and J. Chang, "Bandwidth Recycling in IEEE 802.16 Networks," IEEE Trans. Mobile Computing, vol. 9, no. 10, pp. 1451-1464, Oct. 2010.
[22] Y.Q. Zhao and L.L. Campbell, "Equilibrium Probability Calculations for a Discrete-Time Bulk Queue Model," Queueing Systems, vol. 22, nos. 1/2, pp. 189-198, 1996.
[23] A. Janssen and J.S.H. Van Leeuwaarden, "Analytic Computation Schemes for the Discrete-Time Bulk Service Queue," Queueing Systems, vol. 50, nos. 2/3, pp. 141-163, July 2005.
[24] T. Ohseki, M. Morita, and T. Inoue, "Burst Construction and Packet Mapping Scheme for OFDMA Downlinks in IEEE 802.16 Systems," Proc. IEEE Global Telecomm. Conf. (GLOBECOM), pp. 4307-4311, 2007.
[25] H. Zhai, Y. Kwon, and Y.G. Fang, "Performance Analysis of IEEE 802.11 MAC Protocols in Wireless LANs," Wireless Comm. and Mobile Computing, vol. 4, no. 8, pp. 917-931, Dec. 2004.

Index Terms:
WiMAX, WLAN, tightly coupled, vertical handoff, available bandwidth, packet delay.
Dong Ma, Maode Ma, "A QoS Oriented Vertical Handoff Scheme for WiMAX/WLAN Overlay Networks," IEEE Transactions on Parallel and Distributed Systems, vol. 23, no. 4, pp. 598-606, April 2012, doi:10.1109/TPDS.2011.216
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