UPC-MAC: A Power Control MAC Protocol for Underwater Sensor Networks
After comparing the spatial reuse efficiency between RF based networks and acoustic based networks in terms of our newly defined metric, spatial reuse index, we found that the spatial reuse efficiency in acoustic based networks is significantly lower due to the relatively low spreading loss of acoustic signals, which further degrades the network throughput. To improve the system performance, we propose a slotted based Underwater Power Control MAC protocol (UPC-MAC), which leverages transmission power and long propagation delays to enhance the spatial reuse efficiency. UPC-MAC is a reservation based channel access scheme and makes use of long propagation delays to collect neighboring nodes’ sending requests and channel information between these senders and receivers. With such information, UPC-MAC allows for concurrent transmissions by applying Nash Equilibrium to transmission power adjustment , which can be done on every sending node in a distributed way. Simulation results show that UPC-MAC outperforms Slotted FAMA in terms of network goodput by 15-20% and 35-60% respectively in two representative network scenarios.
KeywordsPower Control Control Packet Packet Length Spatial Reuse Interference Range
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- 1.Cui, J.-H., Kong, J., Gerla, M., Zhou, S.: Challenges: building scalable mobile underwater wireless sensor networks for aquatic applications. IEEE Network, Special Issue on Wireless Sensor Networking 20(3), 12–18 (2006)Google Scholar
- 4.Luo, Y., Pu, L., Peng, Z., Zhou, Z., Cui, J.-H.: CT-MAC: a MAC protocol for underwater MIMO based network uplink communications. In: Proceedings of the Seventh ACM International Conference on Underwater Networks and Systems, p. 23. ACM (2012)Google Scholar
- 5.Stojanovic, M.: Underwater acoustic communication. Wiley Encyclopedia of Electrical and Electronics Engineering (1999)Google Scholar
- 6.Karn, P.: Maca-a new channel access method for packet radio. In: ARRL/CRRL Amateur Radio 9th Computer Networking Conference, vol. 140, pp. 134–140 (1990)Google Scholar
- 7.Bharghavan, V., Demers, A., Shenker, S., Zhang, L.: Macaw: a media access protocol for wireless lan’s. In: ACM SIGCOMM Computer Communication Review, vol. 24(4), pp. 212–225. ACM (1994)Google Scholar
- 9.Molins, M., Stojanovic, M.: Slotted fama: a mac protocol for underwater acoustic networks. In: OCEANS 2006-Asia Pacific, pp. 1–7. IEEE (2007)Google Scholar
- 10.Partan, J., Kurose, J., Levine, B.N., Preisig, J.: Spatial reuse in underwater acoustic networks using rts/cts mac protocols. University of Massachusetts Dept. of Computer Science, UM-CS-2010-045 (2010)Google Scholar
- 11.Baccelli, F., Blaszczyszyn, B., Mühlethaler, P., et al.: A spatial reuse aloha mac protocol for multihop wireless mobile networks (2003)Google Scholar
- 13.Rappaport, T.S., et al.: Wireless communications: principles and practice, vol. 2. Prentice Hall PTR, New Jersey (1996)Google Scholar
- 14.Wang, F., Younis, O., Krunz, M.: Gmac: A game-theoretic mac protocol for mobile ad hoc networks. In: 2006 4th International Symposium on Modeling and Optimization in Mobile, Ad Hoc and Wireless Networks, pp. 1–9. IEEE (2006)Google Scholar
- 16.Xie, P., Zhou, Z., Peng, Z., Yan, H., Hu, T., Cui, J.-H., Shi, Z., Fei, Y., Zhou, S.: Aqua-sim: an ns-2 based simulator for underwater sensor networks. In: OCEANS 2009, MTS/IEEE Biloxi-Marine Technology for Our Future: Global and Local Challenges, pp. 1–7. IEEE (2009)Google Scholar