Year 2015,
Volume: 36 Issue: 3, 3495 - 3505, 13.05.2015
Ali Akbar Kekha Javan
Mohammad Reza Pourmır
References
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Resource Allocation in OFDMA Wireless Communications Systems Supporting Multimedia Services
Year 2015,
Volume: 36 Issue: 3, 3495 - 3505, 13.05.2015
Ali Akbar Kekha Javan
Mohammad Reza Pourmır
Abstract
Abstract. We design a resource allocation algorithm for downlink of orthogonal frequency division multiple access (OFDMA) systems supporting real-time (RT) and best-effort (BE) services simultaneously over a time-varying wireless channel. The proposed algorithm aims at maximizing system throughput while satisfying quality of service (QoS) requirements of the RT and BE services. We take two kinds of QoS requirements into account. One is the required average transmission rate for both RT and BE services. The other is the tolerable average absolute deviation of transmission rate (AADTR) just for the RT services, which is used to control the fluctuation in transmission rates and to limit the RT packet delay to a moderate level. We formulate the optimization problem representing the resource allocation under consideration and solve it by using the dual optimization technique and the projection stochastic sub gradient method. Simulation results show that the proposed algorithm well meets the QoS requirements with the high throughput and outperforms the modified largest weighted delay first (M-LWDF) algorithm that supports similar QoS requirements.
References
- H. Yin and H. Liu, “An efficient multi-user loading algorithm For OFDM-based broadband wireless systems,” in Proc. IEEE GLOBECOM 2000, San Francisco, CA, Nov. 2000.
- M. Ergen, S. Coleri, and P. Varaiya, “QoS aware adaptive resource allocation techniques for fair scheduling in OFDMA based broadband wireless access systems,” IEEE Trans. Broadcast., vol. 49, no. 4, pp. 362–370, Dec. 2003.
- C. Y. Wong, R. S. Cheng, K. B. Letaief, and R. D. Murch, “Multiuser OFDM with adaptive subcarrier, bit, and power allocation,” IEEE J. Select. Areas Commun., vol. 17, no. 10, pp. 1747–1758, Oct. 1999.
- Y. J. Zhang and K. B. Letaief, “Energy-efficient MAC-PHY resource management with guaranteed QoS in wireless OFDM networks,” in Proc. IEEE ICC 2005, Seoul, Korea, May 2005. CHOI et al.: Resource Allocation In Ofdma Wireless Ommunications Systems Supporting Multimedia Services 935
- D. Kivanc, G. Li, and H. Lui, “Computationally efficient bandwidth allocation and power control for OFDMA,” IEEE Trans. Wireless Commun., vol. 2, no. 6, pp. 1150–1158, Nov. 2003.
- Z. Zhang, Y. He, and E. K. P. Chong, “Opportunistic downlink scheduling for multiuser OFDM systems,” in Proc. IEEEWireless Communications and Networking Conf. (WCNC 2005), New Orleans, LA, Mar. 2005, vol. 2, pp. 1206–1212.
- S. S. Jeong, D. G. Jeong, and W. S. Jeon, “Cross-layer design of packet scheduling and resource allocation in OFDMA wireless multimedia networks,” in Proc. IEEE VTC 2006— Spring, Melbourne, Australia, May 2006, vol. 1, pp. 309–313.
- M. Andrews, K.Kumaran, K. Ramanan, A. L. Stolyar, R. Vijayakumar, and P. Whiting, “Providing quality of service over a shared wireless link,” IEEE Commun. Mag., vol. 39, no. 2, pp. 150–154, Feb. 2001.
- 1xEV: 1xEvolution IS-856 TIA/EIA Standard Airlink Overview (Revision 7.1). Qualcomm Inc., May 2001.
- S. Borst and P. Whiting, “Dynamic channel-sensitive scheduling algorithms for wireless data throughput optimization,” IEEE Trans. Veh. Technol., vol. 53, no. 3, pp. 569–586, May 2003.
- W. S. Jeon, D. G. Jeong, and B. Kim, “Packet scheduler for mobile Internet access using high speed downlink packet access systems,” IEEE Trans. Wireless Commun., vol. 3, no. 5, pp. 1789–1801, Sept. 2004.
- K. W. Choi, D. G. Jeong, and W. S. Jeon, “Packet scheduler for mobile communications systems with time-varying capacity region,” IEEE Trans. Wireless Commun., vol. 6, no. 3, pp. 1034–1045, Mar. 2007.
- D. P. Bertsekas, Nonlinear Programming. Belmont, MA: Athena Scientific, 1999.
- Y. Ermoliev, “Stochastic quasigradient methods,” in Numerical Techniques for Stochastic Optimization, Y. Ermoliev and R. Wets, Eds. New York: Springer-Verlag, 1988, pp. 141– 185.
- J. W. Lee, R. R. Mazumdar, and N. B. Shroff, “Opportunistic power scheduling for multi- server wireless systems with minimum performance constraints,” in Proc. IEEE INFOCOM 2004, Hong Kong, China, Mar. 2004, vol. 2, pp. 1067–1077.
- Part 16: Air Interface for Fixed Broadband Wireless Access Systems, IEEE P802.16- REVd/D4, Mar. 2004.
- Koffman and V. Roman, “Broadband wireless access solutions based on OFDM access in IEEE 802.16,” IEEE Commun. Mag., vol. 40, no. 4, pp. 96–103, Apr. 2002.
- P. Hoeher, “A statistical discrete-time model for the WSSUS multipath channel,” IEEE Trans. Veh. Technol., vol. 41, no. 4, pp. 461–468, Nov. 1992.