Wireless Ad Hoc and Sensor Networks

46 Wireless Ad Hoc and Sensor Networks1.6 SummaryGuaranteeing performance in a network whether it is a computer or wirelessnetwork is extremely important. Although QoS issues have been explicitlyaddressed in the case of wired networks, energy efficiency is of paramountimportance for wireless networks. The QoS issues can be met by usingcongestion and admission control, scheduling and routing protocols in anetwork. Many of the wired networking schemes do not offer analyticalperformance except simulation results. Though wireless networks providemobility and low cost and rapid deployment of a WSN create many newopportunities in application areas, a WSN has to satisfy hard constraintsintroduced by factors, such as fault tolerance, scalability, cost, hardware,topology change, environment, and power consumption. Because these constraintsare stringent, new protocols and algorithms are necessary that ensureperformance. This book intends to address these issues and offer analyticalframework on how to ensure performance regardless of the type of network.ReferencesAkyildiz, I.F., Su, W., Sankarasubramaniam, Y., and Cayirci, E., Wireless sensornetworks: a survey, Computer Networks, Vol. 38, 393–422, 2002.Bulusu, N., Estrin, D., Girod, J., and Heidemann, J., Scalable coordination forwireless sensor networks: self-configuring localization systems, Proceedingsof the International Symposium on Communication Theory and Applications (IS-CTA 2001), Ambleside, U.K., July 2001.Bulusu, N., Heidemann, J., Estrin, D., and Tran, T., Self-configuring localizationsystems: design and experimental evaluation, ACM TECS Special Issue onNetworked Embedded Computing, 1–31, August 2002.Chao, H.J. and Guo, X., Quality of Service Control in High-Speed Networks, Wiley-Interscience, New York, 2002.Dontula, S. and Jagannathan, S., Active link protection with distributed powercontrol of wireless networks, Proceedings of the World Wireless Congress, May2004, pp. 612–617.Fall, K. and Varadhan, K., ns Notes and Documentation, Technical report UCBerkley LBNL USC/IS Xerox PARC, 2002.Hoblos, G., Staroswiecki, M., and Aitouche, A., Optimal design of fault tolerantsensor networks, Proceedings of the IEEE International Conference on ControlApplications, Anchorage, AK, September 2000, pp. 467–472.IEEE 802.11a-1999, Amendment to IEEE 802.11: High-speed Physical Layer in the5 GHz band.IEEE 802.11b-1999, Supplement to 802.11-1999, Wireless LAN MAC and PHY specifications:Higher speed Physical Layer (PHY) extension in the 2.4 GHz band,NS-2 manual, http://www.isi.edu/nsnam/ns/ns-documentation.html.