Lalit Raju

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This paper describes the design and implementation of a novel 802.11-based self-organizing hierarchical ad-hoc wireless network (SOHAN), and presents some initial experimental results obtained from a proof-of-concept prototype. The proposed network has a three-tier hierarchy consisting of low-power mobile nodes (MNs) at the lowest layer, forwarding nodes(More)
— This paper describes a beacon assisted discovery mechanism for self-organizing hierarchical ad-hoc networks. The discovery protocol, which operates between the medium access control (MAC) and network layers, is responsible for topology formation in the ad-hoc network taking into account performance objectives such as throughput, delay, energy consumption(More)
Security involving communications and networks is not as simple as it might first appear to the novice. Current intrusion detection and prevention systems seek to detect a wide class of network intrusions systems we know of keep per-connection or per-flow state to detect malicious TCP flows. Thus, it is hardly surprising that these IDS systems have not(More)
— An important aspect of the deployment of wireless LANs lies in careful planning of the locations and the channel assignments of the Access Points (APs). The APs need to be placed optimally to provide maximum coverage and minimize interference with other APs. Also, in the case of ad-hoc networks that require no fixed network infrastructure, there is a need(More)
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