Dheryta Jaisinghani

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IEEE 802.11 WLAN (Wireless or WiFi LAN) clients discover neighboring APs (Access Points) by active or passive scanning. Such an active scan of WLAN injects probe frames in the network. Network conditions like packet losses, roaming, etc. result in increased active scanning and hence, an excessive increase of the probe traffic. Of the several causes inherent(More)
Large-scale and dense WiFi networks are expected to provide high performance through data throughput of Gbps order, seamless mobility, and uninterrupted voice and video services. Corresponding to these requirements, we analyse 6 months worth of WiFi traffic from live and uncontrolled WiFi network deployment to establish the existence of three problems - (1)(More)
Guaranteed data delivery within certain time bounds and high probability of success is required by many continuous event monitoring applications. A low complexity protocol for network connectivity and data transfer to the base station from any location in the recognized area is proposed for designing a robust Wireless Sensor Network for such applications. A(More)
WiFi clients and access points (APs) in large-scale and dense WiFi networks transmit millions of MAC layer frames at a granularity of microseconds. Thus, resulting in performance problems due to complex MAC layer interactions that may not be useful. Literature suggests existence of three such problems-(1) Useless and Aggressive Active Scanning (AAS), (2)(More)
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