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Issue No.10 - October (2010 vol.9)
pp: 1451-1464
David Chuck , Iowa State University, Ames, IA
J. Morris Chang , Iowa State University, Ames, IA
ABSTRACT
IEEE 802.16 standard was designed to support the bandwidth demanding applications with quality of service (QoS). Bandwidth is reserved for each application to ensure the QoS. For variable bit rate (VBR) applications, however, it is difficult for the subscriber stations (SSs) to predict the amount of incoming data. To ensure the QoS guaranteed services, the SS may reserve bandwidth more than the amount of its transmitting data. As a result, the reserved bandwidth may not be fully utilized all the time. In this paper, we propose a scheme, named Bandwidth Recycling, to recycle the unused bandwidth without changing the existing bandwidth reservation. The idea of our scheme is to allow other SSs to utilize the unused bandwidth when it is available. Thus, not only the same QoS guaranteed services can be provided but also the system throughput can be improved. Mathematical analysis and simulation are used to evaluate the proposed scheme. Simulation and analysis results confirm that our proposed scheme can recycle 35 percent of unused bandwidth on average. By analyzing factors affecting the recycling performance, three scheduling algorithms are proposed to improve the overall throughput. The simulation results show that our proposed algorithm can further improve the overall throughput by 40 percent when the network is in the steady state.
INDEX TERMS
WiMAX, IEEE 802.16, bandwidth recycling.
CITATION
David Chuck, J. Morris Chang, "Bandwidth Recycling in IEEE 802.16 Networks", IEEE Transactions on Mobile Computing, vol.9, no. 10, pp. 1451-1464, October 2010, doi:10.1109/TMC.2010.115
REFERENCES
[1] IEEE 802.16 WG, IEEE Standard for Local and Metropolitan Area Network Part 16: Air Interface for Fixed Boardband Wireless Access Systems, IEEE Std 802.16-2004, IEEE, pp. 1-857.
[2] IEEE 802.16 WG, IEEE Standard for Local and Metropolitan Area Networks Part 16: Air Interface for Fixed and Mobile Broadband Wireless Access Systems, Amendment 2, IEEE, Dec. 2005.
[3] J. He, K. Yang, and K. Guild, "A Dynamic Bandwidth Reservation Scheme for Hybrid IEEE 802.16 Wireless Networks," Proc. IEEE Int'l Conf. Comm. (ICC '08), pp. 2571-2575.
[4] K. Gakhar, M. Achir, and A. Gravey, "Dynamic Resource Reservation in IEEE 802.16 Broadband Wireless Networks," Proc. IEEE Int'l Workshop Quality of Service (IWQoS), pp. 140-148, 2006.
[5] J. Tao, F. Liu, Z. Zeng, and Z. Lin, "Throughput Enhancement in WiMax Mesh Networks Using Concurrent Transmission," Proc. IEEE Int'l Conf. Wireless Comm., Networking and Mobile Computing, pp. 871-874, 2005.
[6] X. Bai, A. Shami, and Y. Ye, "Robust QoS Control for Single Carrier PMP Mode IEEE 802.16 Systems," IEEE Trans. Mobile Computing, vol. 7, no. 4, pp. 416-429, Apr. 2008.
[7] E.-C. Park, H. Kim, J.-Y. Kim, and H.-S. Kim, "Dynamic Bandwidth Request-Allocation Algorithm for Real-Time Services in IEEE 802.16 Broadband Wireless Access Networks," Proc. IEEE INFOCOM, pp. 852-860, 2008.
[8] T.G. Robertazzi, Computer Networks and Systems: Theory and Performance Evaluation. Springer-Verlag, 1990.
[9] K. Gakhar, M. Achir, and A. Gravey, "How Many Traffic Classes Do We Need In WiMAX?" Proc. Wireless Comm. and Networking Conf. (WCNC), pp. 3703-3708, 2007.
[10] G. Iazeolla, P. Kritzinger, and P. Pileggi, "Modelling Quality of Service in IEEE 802.16 Networks," Proc. IEEE Conf. Software, Telecomm. and Computer Networks (SoftCOM), pp. 130-134, 2008.
[11] Qualnet, http://www.scalable-networks.com/products/ developernew_in_45.php, 2010.
[12] F.H.P. Fitzek and M. Reisslein, "MPEG-4 and H.263 Video Traces for Network Performance Evaluation," IEEE Network, vol. 15, no. 6, pp. 40-54, Nov./Dec. 2001.
[13] P. Seeling, M. Reisslein, and B. Kulapala, "Network Performance Evaluation Using Frame Size and Quality Traces of Single-Layer and Two-Layer Video: A Tutorial," IEEE Comm. Surveys and Tutorials, vol. 6, no. 2, pp. 58-78, July-Sept. 2004.
[14] G. Van der Auwera, P.T. David, and M. Reisslein, "Traffic and Quality Characterization of Single-Layer Video Streams Encoded with H.264/AVC Advanced Video Coding Standard and Scalable Video Coding Extension," IEEE Trans. Broadcasting, vol. 54, no. 3, pp. 698-718, Sept. 2008.
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