Janvier-Senat, Nedier

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    Performance study on ieee 802.11 wireless local area network security
    (2006) Janvier-Senat, Nedier; Qian, Yi; College of Engineering; Rodríguez, Manuel; Rodríguez, Néstor; Department of Electrical and Computer Engineering; Bollman, Dorothy
    The IEEE 802.11 Wireless Networks gains its popularity and fame by providing the users with several advantages in accessing information. WLANs provide true mobility and flexibility to users. Another advantage of wireless technology is installation. A physical or cable connection is no longer needed because a single connection to the access point via electromagnetic waves is all that is necessary. This both decreases installation costs and allows for wireless networks to be installed in locations where previously it would have been difficult or impossible to install wiring. Such benefits and advantages bring up some security and performance problems. Various researchers have proposed several solutions to improve WLAN security and to understand the impact of the security mechanisms on the performance of the network. However, the establishment of a tradeoff between security and network performance is often neglected. The aim of our research thesis is to quantify the impact of the security mechanisms on the performance of the network. This research thesis investigates the effect of multiple security mechanisms on the performance of multi-client saturated and unsaturated networks. The performance effect of different TCP and UDP packet size distributions on secure networks is also studied. Our results prove that the security mechanisms affect the network performance in different ways and the more secure the network is, the lower the performance is. Our results provide ways in which to configure wireless networks such that security requirements can be met in relation to quantifiable performance impact in practical situations.