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QoS-Aware Routing and Admission Control in Shadow-Fading Environments for Multirate MANETs
May 2011 (vol. 10 no. 5)
pp. 622-637
Lajos Hanzo II, DSI GmbH, Bremen, Germany
Rahim Tafazolli, University of Surrey, Guildford
Providing quality of service (QoS) assurances in a mobile ad hoc network (MANET) is difficult due to node mobility, contention for channel access, a lack of centralized co-ordination, and the unreliable nature of the wireless channel. A QoS-aware routing (QAR) protocol and an admission control (AC) protocol are two of the most important components of a system attempting to provide QoS guarantees in the face of the above mentioned difficulties faced. Many QAR and AC-based solutions have been proposed, but such network layer solutions are often designed and studied with idealized lower layer models in mind. This means that existing solutions are not designed for dealing with practical phenomena such as shadow fading and the link quality-dependent fluctuation of link transmission rates. This paper proposes and evaluates new solutions for improving the performance of QAR and AC protocols in the face of mobility, shadowing, and varying link SINR. It is found that proactively maintaining backup routes for active sessions, adapting transmission rates, and routing around temporarily low-SINR links can noticeably improve the reliability of assured throughput services.

[1] S. Basagni, M. Conti, S. Giordano, and I. Stojmenovic, Mobile Ad Hoc Networking. Wiley-IEEE, 2004.
[2] L. Kleinrock and J. Silvester, "Spatial Reuse in Multi-Hop Packet Radio Networks," Proc. IEEE, vol. 75, no. 1, pp. 156-167, 1987.
[3] L. HanzoII and R. Tafazolli, "Admission Control Schemes for 802.11-Based Multi-Hop Mobile Ad Hoc Networks: A Survey," IEEE Comm. Surveys and Tutorials, vol. 11, no. 4, pp. 78-108, Oct.-Dec. 2009.
[4] L. HanzoII and R. Tafazolli, "A Survey of QoS Routing Solutions for Mobile Ad Hoc Networks," IEEE Comm. Surveys and Tutorials, vol. 9, no. 2, pp. 50-70, Apr.-June 2007.
[5] Y. Yang and R. Kravets, "Contention-Aware Admission Control for Ad Hoc Networks," IEEE Trans. Mobile Computing, vol. 4, no. 4, pp. 363-377, July/Aug. 2005.
[6] D.B. Johnson and D.A. Maltz, "Dynamic Source Routing in Ad Hoc Wireless Networks," Mobile Computing, T. Imielinski and H. Korth, eds., vol. 353, pp. 153-181, Kluwer Academic, 1996.
[7] C.E. Perkins and E.M. Royer, "Ad Hoc On-Demand Distance Vector Routing," Proc. Second IEEE Workshop Mobile Computing Systems and Application, pp. 90-100, Feb. 1999.
[8] L. Chen and W. Heinzelman, "QoS-Aware Routing Based on Bandwidth Estimation for Mobile Ad Hoc Networks," IEEE J. Selected Areas in Comm., vol. 23, no. 3, pp. 561-572, Mar. 2005.
[9] L. Luo, M. Gruteser, H. Liu, D. Raychaudhuri, K. Huang, and S. Chen, "A QoS Routing and Admission Control Scheme for 802.11 Ad Hoc Networks," Proc. Int'l Conf. Mobile Computing and Networking, pp. 19-28, Sept. 2006.
[10] H. Wu, Y. Liu, Q. Zhang, and Z.-L. Zhang, "SoftMAC: Layer 2.5 Collaborative MAC for Multimedia Support in Multi-Hop Wireless Networks," IEEE Trans. Mobile Computing, vol. 6, no. 1, pp. 12-25, Jan. 2007.
[11] I.D. Chakeres and E.M. Belding-Royer, "PAC: Perceptive Admission Control for Mobile Wireless Networks," Proc. First Int'l Conf. Quality of Service in Heterogeneous Wired/Wireless Networks (QShine), pp. 18-26, Aug. 2004.
[12] A. Lindgren and E. Belding-Royer, "Multi-Path Admission Control for Mobile Ad Hoc Networks," Mobile Computing and Comm. Rev., vol. 8, no. 4, pp. 68-71, 2004.
[13] R. Renesse, V. Friderikos, and H. Aghvami, "Cross-Layer Cooperation for Accurate Admission Control Decisions in Mobile Ad Hoc Networks," IET Comm., vol. 1, no. 4, pp. 577-586, 2007.
[14] L. HanzoII and R. Tafazolli, "Throughput Assurances through Admission Control for Multi-Hop MANETs," Proc. IEEE Int'l Symp. Personal, Indoor and Mobile Radio Comm. (PIMRC '07), pp. 1-5, Sept. 2007.
[15] G. Gaertner, E. ONuallain, A. Butterly, K. Singh, and V. Cahill, "802.11 Link Quality and Its Prediction—An Experimental Study," Lecture Notes in Computer Science, pp. 147-163, Springer, Sept. 2004.
[16] A. Molisch, Wireless Comm. John Wiley & Sons, 2005.
[17] L. HanzoII and R. Tafazolli, "The Effects of Shadow Fading on QoS-Aware Routing and Admission Control Protocols Designed for Multi-Hop MANETs," Wiley J. Wireless Comm. and Mobile Computing, Jan. 2010.
[18] L. HanzoII and R. Tafazolli, "Ch 3: Mobile Ad Hoc Networks: Challenges and Solutions for Providing Quality of Service Assurances," 4G Mobile and Wireless Comm. Technologies, S. Kyriazakos, I. Soldatos, and G. Karetsos, eds., pp. 31-43, River, 2008.
[19] A. Lindgren, "Multi-Path Admission Control for Mobile Ad Hoc Networks," Proc. Ann. Int'l Conf. Mobile and Ubiquitous Systems: Networking and Services, pp. 407-417, July 2005.
[20] IEEE Std. 802.11-2007, Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications, IEEE, 2007.
[21] Y.-J. Kim and Y.-J. Suh, "An Efficient Rate Switching Scheme for IEEE 802.11 Wireless LANs," Proc. IEEE Vehicular Technology Conf. Spring, vol. 4, pp. 2364-2368, May 2005.
[22] H. Zhai and Y. Fang, "Physical Carrier Sensing and Spatial Reuse in Multi-Rate and Multi-Hop Wireless Ad Hoc Networks," Proc. IEEE INFOCOM, pp. 1-12, Apr. 2006.
[23] M. Souryal and N. Moayeri, "Channel-Adaptive Relaying in Mobile Ad Hoc Networks with Fading," Proc. Second IEEE Ann. Conf. Sensor and Ad Hoc Comm. and Networks, pp. 142-152, Sept. 2005.
[24] Q. Chen, F. Schmidt-Eisenlohr, D. Jiang, M. Torrent-Moreno, L. Delgrossi, and H. Hartenstein, "Overhaul of IEEE 802.11 Modeling and Simulation Architecture in NS-2," Proc. 10th ACM/IEEE Int'l Symp. Modeling, Analysis, and Simulation of Wireless and Mobile Systems (MSWiM '07), pp. 159-168, Oct. 2007.
[25] W. Jakes, Microwave Mobile Comm. Wiley, 1974.
[26] J. Weitzen and T.J. Lowe, "Measurement of Angular and Distance Correlation Properties of Log-Normal Shadowing at 1900 MHz and Its Application to Design of PCS Systems," IEEE Trans. Vehicular Technology, vol. 51, no. 2, pp. 265-273, Mar. 2002.
[27] W. Navidi and T. Camp, "Stationary Distributions for the Random Waypoint Mobility Model," IEEE Trans. Mobile Computing, vol. 3, no. 1, pp. 99-108, Jan. 2004.

Index Terms:
Multirate mobile ad hoc networks, quality of service aware routing, admission control, shadowing/shadow fading, guaranteed throughput.
Lajos Hanzo II, Rahim Tafazolli, "QoS-Aware Routing and Admission Control in Shadow-Fading Environments for Multirate MANETs," IEEE Transactions on Mobile Computing, vol. 10, no. 5, pp. 622-637, May 2011, doi:10.1109/TMC.2010.208
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