Abstract
Since wireless signals propagate through the ether, they are significantly affected by attenuation, fading, multipath, and interference. As a result, it is difficult to measure and understand fundamental wireless network behavior. This creates a challenge for both network researchers, who often rely on simulators to evaluate their work, and network managers, who need to deploy and optimize operational networks. Given the complexity of wireless networks, both communities often rely on simplifying rules, which frequently have not been validated using today’s wireless radios. In this paper, we undertake a detailed characterization of 802.11 link-level behavior using commercial 802.11 cards. Our study uses a wireless testbed that provides signal propagation emulation, giving us complete control over the signal environment. In addition, we use our measurements to analyze the performance of an operational wireless network. Our work contributes to a more accurate understanding of link-level behavior and enables the development of more accurate wireless network simulators.
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Kurkowski, S., Camp, T., & Colagrosso, M. (2005). Manet simulation studies: The incredibles. Mobile Computing and Communications Review, 50–61, October 2005.
Kotz, D., Newport, C., Gray, R. S., Liu, J., Yuan, Y., & Elliott, C. (2004). Experimental evaluation of wireless simulation assumptions. In Proc. of MSWiM 2004, Venice, Italy, October 2004.
Aguayo, D., Bicket, J., Biswas, S., Judd, G., & Morris, R. (2004). Link-level measurements from an 802.11b mesh network. In Proc. of SIGCOMM 2004, Portland, August 2004.
Papagiannaki, K., Yarvis, M., & Conner, W. (2006). Experimental characterization of home wireless networks and design implications. In Proc. of Infocom 2006, Barcelona, Spain, April 2006.
Judd, G., & Steenkiste, P. (2007). Understanding link-level 802.11 behavior: Replacing convention with measurement. In Wireless Internet Conference 2007 (Wicon07), Austin, Texas, October 2007.
Judd, G., & Steenkiste, P. (2005). Using emulation to understand and improve wireless networks and applications. In Proc. of NSDI 2005, Boston, MA, May 2005.
Judd, G. (2006). Repeatable and realistic wireless experimentation through physical emulation, October 2006.
Tobagi, F., & Kleinrock, L. (1975). Packet switching in radio channels: Part ii—the hidden terminal problem in carrier sense multiple-access and the busy-tone solution. IEEE Transactions on Communications, 23(12), 1417–1433.
Fullmer, C., & Garcia-Luna-Aceves, J. (1997). Solutions to hidden terminal problems in wireless networks. In Proc. of Sigcomm 1997, Cannes, France, September 1997.
Kochut, A., Vasan, A., Shankar, A., & Agrawala. (2004). Sniffing out the correct physical layer capture model in 802.11b. In Proceedings of the 12th IEEE International Conference on Networking Protocols, October 2004.
Roberts, L. (1972). Aloha packet system with and without slots. ARPA Network Information Center, TR ASS Note 8.
Ramamurthi, B., Saleh, A., & Gooodman, D. (1987). Perfect-capture ALOHA for local radio communications. IEEE Journal on Selected Areas of Communication, 5, June.
Mutsuura, K., Okada, H., Ohtsuki, K., & Tezuka, Y. (1989). A new control scheme with capture effect. In International Conference on Communications, June.
Mishra, A., Rozner, E., Banerjee, S., & Arbaugh, W. (2005). Exploiting partially overlapping channels in wireless networks: Turning a peril into an advantage. In Proc. of IMC 2005, Berkeley, CA, October 2005.
Rappaport, T. (2002). Wireless communications: Principles and practice. Englewood Cliffs, NJ: Prentice-Hall.
Mahajan, R., Rodrig, M., Wetherall, D., & Zahorjan, J. (2006). Analyzing the MAC-level behavior of wireless networks in the wild. In Proc. of SIGCOMM 2006, Pisa, Italy, September 2006.
Tai, C. (1992). Complementary reciprocity theorems in electromagnetic theory. IEEE Transactions on Antennas and Propagation, 40(6), 675–681.
Cheng, Y., Bellardo, J., & Benko, P. (2006). Jigsaw: Solving the puzzle of enterprise 802.11 analysis. In Proc. of SIGCOMM 2006, Pisa, Italy, September 2006.
Ware, C., Chicharo, J., & Wysocki, T. (2001). Modelling of capture behavior in IEEE 802.11 radio modems. In IEEE International Conference on Telecommunications, June.
Ware, C., Judge, J., Chicharo, J., & Dutkiewicz, E. (2000). Unfairness and capture behavior in 802.11 adhoc networks. In IEEE International Conference on Communications (ICC 2000), June.
Namislo, C. (1984). Analysis of mobile radio slotted aloha networks. IEEE Transactions on Vehicular Technology, 33(3), 199–204.
Kim, J., & Kim, J. (1999). Capture effects of wireless CSMA/CA/protocols in Rayleigh and shadow fading channels. IEEE Transactions on Vehicular Technology, 48, July.
Hadzi-velkov, Z., & Spasenovski, B. (2002). Capture effect in IEEE 802.11 basic service area under influence of Rayleigh fading and near/far effect. In IEEE International Symposium on Personal Indoor Communication.
Whitehouse, K., Woo, A., Jiang, F., Polastre, J., & Culler, D. (2005). Exploiting the capture effect for collision detection and recovery. In The Second IEEE Workshop on Embedded Networked Sensors (EmNetS-II, May 2005.
Robinson, J., Papagiannaki, K., Diot, C., Guo, X., & Krishnamurthy, L. (2005). Experimenting with a multi-radio mesh networking testbed. In Proc. of WiNMee 2005, Trento, Italy, April 2005.
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Judd, G., Steenkiste, P. Characterizing 802.11 wireless link behavior. Wireless Netw 16, 167–182 (2010). https://doi.org/10.1007/s11276-008-0122-5
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DOI: https://doi.org/10.1007/s11276-008-0122-5