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Wireless local area network (WLAN) is more and more received people's favor by some superiority, for example, fast deployment, speed higher and so on. With the development of wireless WLAN, its network security issues become more attention. Security problem is still insufficient in the current IEEE802.1× series of standard; it has become an important research topic that how to ensure the security...
The third generation (3G) of mobile communications has been successfully standardized and implemented throughout the world. International Mobile Telecommunications-2000 (IMT-2000) technology is a representative realization of 3G technology. Currently IMT-2000 is evolving to a next generation standard named IMT-Advanced. Major milestone technologies that lead 3G in to the fourth generation (4G) standards...
Two well-known problems that can cause performance degradations in IEEE 802.11 wireless networks are the exposed-node (EN) and hidden-node (HN) problems. Although there have been isolated and incidental studies of EN and HN, a comprehensive treatment has not been attempted. The contributions of this paper are threefold: First, we provide rigorous mathematical definitions for EN and HN in wireless...
The 3G mobile data network provides always-on and ubiquitous connectivity for subscribers. Although the service coverage area in wireless local area network (WLAN) is much smaller than that in a 3G mobile data network, the data transmission rate in WLAN can be from 2 to 54 Mbps, which is much faster than 3G mobile network. Obviously, the relationship between the 3G mobile data network and WLAN is...
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