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Optimal Joint Session Admission Control in Integrated WLAN and CDMA Cellular Networks with Vertical Handoff
January 2007 (vol. 6 no. 1)
pp. 126-139
This paper considers optimizing the utilization of radio resources in a heterogeneous integrated system consisting of two different networks: a wireless local area network (WLAN) and a wideband code division multiple access (CDMA) network. We propose a joint session admission control scheme for multimedia traffic that maximizes overall network revenue with quality of service (QoS) constraints over both the WLAN and the CDMA cellular networks. The WLAN operates under the IEEE 802.11e medium access control (MAC) protocol, which supports QoS for multimedia traffic. A novel concept of effective bandwidth is used in the CDMA network to derive the unified radio resource usage, taking into account both physical layer linear minimum mean square error (LMMSE) receivers and characteristics of the packet traffic. Numerical examples illustrate that the network revenue earned in the proposed joint admission control scheme is significantly larger than that when the individual networks are optimized independently with no vertical handoff between them. The revenue gain is also significant over the scheme in which vertical handoff is supported, but admission control is not done jointly. Furthermore, we show that the optimal joint admission control policy is a randomized policy, i.e., sessions are admitted to the system with probabilities in some states.

[1] A.K. Salkintzis, “Interworking Techniques and Architectures for WLAN/3G Integration toward 4G Mobile Data Networks,” IEEE Wireless Comm., vol. 11, pp. 50-61, June 2004.
[2] M. Buddhikot, G. Chandranmenon, S. Han, Y.W. Lee, S. Miller, and L. Salgarelli, “Integration of 802.11 and Third-Generation Wireless Data Networks,” Proc. INFOCOM '03, Apr. 2003.
[3] L. Luo, R. Mukerjee, M. Dillinger, E. Mohyeldin, and E. Schulz, “Investigation of Radio Resource Scheduling in WLANs Coupled with 3G Cellular Network,” IEEE Comm. Magazine, vol. 41, pp.108-115, June 2003.
[4] Q. Zhang, C. Guo, Z. Guo, and W. Zhu, “Efficient Mobility Management for Vertical Handoff between WWAN and WLAN,” IEEE Comm. Magazine, vol. 41, pp. 102-108, Nov. 2003.
[5] W. Zhuang, Y.-S. Gan, K.-J. Loh, and K.-C. Chua, “Policy-Based QoS Management Architecture in an Integrated UMTS and WLAN Environment,” IEEE Comm. Magazine, vol. 41, pp. 118-125, Nov. 2003.
[6] F. Yu and V. Krishnamurthy, “Effective Bandwidth of Multimedia Traffic in Packet Wireless CDMA Networks with LMMSE Receivers—A Cross-Layer Perspective,” IEEE Trans. Wireless Comm., vol. 5, pp. 525-530, Mar. 2006.
[7] Wireless Medium Access Control (MAC) and Physical Layer (PHY) Specification: Medium Access Control (MAC) Enhancement for Quality of Service (QoS), IEEE, ANSI/IEEE Std 802.11e, Draft 5.0, IEEE, July 2003.
[8] Y. Xiao and H. Li, S. Choi, “Protection and Guarantee for Voice and Video Traffic in IEEE 802.11e Wireless LANs,” Proc. IEEE INFOCOM '04, Apr. 2004.
[9] Y.-L. Kuo, C.-H. Lu, E. Wu, and G.-H. Chen, “An Admission Control Strategy for Differentiated Services in IEEE 802.11,” Proc. IEEE GLOBECOM '03, pp. 707-712, Dec. 2003.
[10] G. Bianchi, “Performance Analysis of the IEEE 802.11 Distributed Coordination Function,” IEEE J. Selected Areas in Comm., vol. 18, pp. 535-547, Mar. 2000.
[11] D. Zhao, X. Shen, and J.-W. Mark, “Radio Resource Management for Cellular CDMA Systems Supporting Heterogeneous Services,” IEEE Trans. Mobile Computing, vol. 2, pp. 147-160, Apr.-June 2003.
[12] S. Singh, V. Krishnamurthy, and H.V. Poor, “Integrated Voice/Data Call Admission Control for Wireless DS-CDMA Systems with Fading,” IEEE Trans. Signal Processing, vol. 50, pp. 1483-1495, June 2002.
[13] C. Comaniciu and H.V. Poor, “Jointly Optimal Power and Admission Control for Delay Sensitive Traffic in CDMA Networks with LMMSE Receivers,” IEEE Trans. Signal Processing, vol. 51, pp.2031-2042, Aug. 2003.
[14] S. Xu, “Advances in WLAN QoS for 802.11: An Overview,” Proc. IEEE Int'l Symp. Personal Indoor and Mobile Radio Comm., pp.2297-2301, Sept. 2003.
[15] J. Evans and D.N.C. Tse, “Large System Performance of Linear Multiuser Receivers in Multipath Fading Channels,” IEEE Trans. Information Theory, vol. 46, pp. 2059-2078, Sept. 2000.
[16] F. Kelly, “Notes on Effective Bandwidths,” Stochastic Networks: Theory and Applications, F. Kelly, S. Zachary, and I. Ziedins, eds., pp. 141-168, Oxford Press, 1996.
[17] M. Schwartz, Broadband Integrated Networks. Prentice Hall, 1996.
[18] M. Puterman, Markov Decision Processes. John Wiley, 1994.
[19] H. Tijms, Stochastic Modeling and Analysis: A Computational Approach. Wiley, 1986.
[20] S. Boyd and L. Vanderberghe, Convex Optimization. Cambridge Univ. Press, 2004.
[21] Y. Fang, I. Chlamtac, and Y.-B. Lin, “Channel Occupancy Times and Handoff Rate for Mobile Computing and PCS Networks,” IEEE Trans. Computing, vol. 47, pp. 679-692, June 1998.
[22] C.G. Cassandras and S. Lafortune, Introduction to Discrete Event Systems. Kluwer, 1999.
[23] G. Pflug, Optimization of Stochastic Models—The Interface between Simulation and Optimization. Kluwer, 1996.
[24] S. Wu, K.Y.M. Wong, and B. Li, “A Dynamic Call Admission Policy with Precision QoS Guarantee Using Stochastic Control for Mobile Wireless Networks,” IEEE Trans. Networking, vol. 10, pp.257-271, Apr. 2002.
[25] C.J.C.H. Watkins and P. Dayan, “Q-Learning,” Machine Learning, vol. 8, pp. 279-292, 1992.
[26] D. Wu, Y. Hou, and Y. Zhang, “Scale Video Coding and Transport over Broadband Wireless Networks,” Proc. IEEE, vol. 89, pp. 6-20, Jan. 2001.
[27] D.P. Heyman and M.J. Sobel, Stochastic Models in Operations Research: Volume II. Dover Publications, 2003.

Index Terms:
Mobile communication systems, algorithm design and analysis, Markov processes, linear programming.
Citation:
Fei Yu, Vikram Krishnamurthy, "Optimal Joint Session Admission Control in Integrated WLAN and CDMA Cellular Networks with Vertical Handoff," IEEE Transactions on Mobile Computing, vol. 6, no. 1, pp. 126-139, Jan. 2007, doi:10.1109/TMC.2007.11
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