Journal of Networks, Vol 6, No 1 (2011), 104-111, Jan 2011
doi:10.4304/jnw.6.1.104-111

A Cross-Layer Resource Allocation Algorithm with Dynamic Buffer Allocation Mechanism

Gang Chen, Xinrong Wu, Wenqiang Zhang, Xiang Zheng

Abstract


A novel cross-layer wireless resource allocation algorithm called DBMQT is proposed which distributes the resource based on dynamic buffer allocation mechanism for orthogonal frequency division multiplex access (OFDMA) system. The aim of allocation algorithm is to maximize system throughput while satisfying the QoS requirement for multi-user and multi-service. The algorithm consists of two steps. Firstly, with the assumption of a finite queue model for arrival packets, the scheme adjusts users’ buffer according to dynamic buffer allocation mechanism. In the second step, a distinct scheduling priority is defined for each user integrates MAC QoS requirements, queue status and PHY Channel State Information (CSI), assuming that the power is uniformly allocated on each subcarrier. Using these scheduling priorities, a scheduling rule for mixed traffics is proposed. Simulation results indicate that the proposed algorithm can achieve better performance in terms of system throughput, packet loss rate and efficiency of the buffer than tradition algorithm under enhancing QoS guarantees for different services.


Keywords


OFDMA；resource allocation；buffer manage; scheduling algorithms；cross-layer；quality of servic

References


[1] Zhen Kong, Jiangzhou Wang, Yu-Kwong Kwok. “A new cross layer approach to QoS-aware proportional fairness packet scheduling in the downlink of OFDM wireless systems”. IEEE Communications ICC 2007. Glasgow: IEEE Communications Society Press, 2007:5695-5700.

[2] S. Shakkottai, T. S. Rappaport, and P. C. Karlsson, “Cross-layer design for wireless networks,” IEEE Commun. Mag., Vol. 41, no. 10, pp. 74-80, Oct. 2003.
doi:10.1109/MCOM.2003.1235598

[3] 0P. Viswanath, D. Tse, and R. Laroia, “Opportunistic Beamforming Using Dumb Antennas,” IEEE Trans. Info. Theory, vol. 48, June 2002, pp. 1277–94.

[4] X. Liu, E. K. P. Chong, and N. B. Shroff, “Opportunistic Transmission Scheduling with Resource-Sharing Constraints in Wireless Networks,” IEEE JSAC, vol. 19, no.10, 2001, pp. 2053–64.

[5] Andrews, M., Borst, S., Dominique, F., Jelenkovic, P., Kumaran, K., Ramakrishnan, K., and Whiting, P., “Dynamic bandwidth allocation algorithms for high-speed data wireless networks,” tech. rep., Bell Labs Technical Memorandum, 2000.

[6] Shakkottai, S. and Stolyar, A. L., “Scheduling for multiple flows sharing a time-varying channel: the exponential rule,” Analytic Methods in Applied Probabil-ity, vol. 207, pp. 185–202, 2002.

[7] G. Song, Y. (G.) Li, L. J. Cimini, Jr., and H. Zheng, "Joint channel-aware and queue-aware data scheduling in multiple shared wireless channels," IEEE Wireless Communications and Networking Conference 2004 (WCNC 2004), Mar. 2004, pp.1939 - 1944.

[8] Ying Jun Zhang, Khaled Ben Letaief. “Cross-layer adaptive resource management for wireless packet network with OFDM signaling”. IEEE transactions on wireless communications, 2006, 5(11):3244-3254.
doi:10.1109/TWC.2006.05002

[9] Bin Da *, C.C.Ko * and Yanfen Liang. “An enhanced capacity and fairness scheme for MIMO-OFDMA downlink resource allocation”. IEEE ISCIT 2007, pp: 495-499.

[10] Hui Tian, Haibo Xu, Youjun Gao. “QoS-Oriented cross-layer resource allocation with finite queue in OFDMA systems”. In the WCNC 2008 proceedings. LasVegas: IEEE Communications Society Press, 2008:1519-1524.

[11] Q. liu, X. Wang and G. B. Giannakis. “A cross-layer scheduling algorithm with QoS support in Wireless Network”. IEEE Trans. Veh. Technol., vol.55, no.3, pp.839-847, May 2006
doi:10.1109/TVT.2006.873832

[12] Xinning Zhu, Jiachuan Huo, Xiaoxi Xu. “QoS-guaranteed scheduling and resource allocation algorithm for IEEE 802.16 OFDMA system”. In the ICC 2008 proceedings. Bei Jin: IEEE Communications Society Press, 2008:3463-3468

[13] Gang Chen, Wenqiang Zhang, Xiang Zheng, Xinrong Wu. A Cross-Layer Resource Allocation Algorithm with Finite Queue for OFDMA System. NSWCTC2010, April, Wuhan, China, Wireless Communication (EI), 2010, 4. 157-161


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