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A number of multi-channel assignment schemes have recently been proposed to improve the throughput of IEEE 802.11-based multi-hop wireless mesh networks (WMNs). In these schemes, channel coordination is done either through time synchronization across all the hosts, or through the use of a dedicated channel for the transmission of necessary control messages. Either way, excessive system overhead and/or...
We present a covert side channel technique that uses the 802.11 MAC rate switching protocol as cover for covert authentication messages. Covert authentication prevents an attacker from knowing when a user is authenticating and protects user credentials from malicious software attacks. Similar to port knocking, a remote client sends authentication messages to an access point in order to access a protected...
Because wireless stations independently select which access points to camp on, the total wireless station traffic on all available IEEE 802.11 network APs might be unevenly distributed. This load-balancing problem can lead to overloading and network congestion. This survey examines the problem, along with state-of-the-art network- and wireless-station-based solutions. It also presents experimental...
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