Vinay Sridhara

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It is a truism that today’s simulations of mobile wireless networks are not realistic. In realistic simulations of urban networks, the mobility of vehicles and pedestrians is greatly influenced by the environment (e.g., the location of buildings) as well as by interaction with other nodes. For example, on a congested street or sidewalk, nodes cannot travel(More)
The paper describes a distributed energyconserving multicast routing protocol, termed ECMANSI, which makes use of the biological metaphor of Swarm Intelligence to create the multicast structure. ECMANSI adopts a core-based approach by establishing connectivity among the group members through a designated core node. Each node explores a better path with(More)
The minimum-energy multicast tree problem aims to construct a multicast tree rooted at the source node and spanning all the destination nodes such that the sum of transmission power at non-leaf nodes is minimized. However, aggressive power assignment at non-leaf nodes, although conserving more energy, results in multicast trees that suffer from higher hop(More)
Signal to interference plus noise ratio, SINR, is one of the main factors that affects the quality of wireless communication. While the impact of white Gaussian noise on a wireless channel is well understood, impact of interference remains one of the less explored areas. With the deployment of dense mesh networks, the interference will be a dominant factor(More)
It is a truism that simulations of mobile wireless networks (e.g., MANETs) are not realistic. There has been little effort in developing realistic mobility models and while propagation is well understood, it is rarely applied. In urban areas, the mobility of vehicles and pedestrians is greatly influenced by the environment (e.g., the location of buildings)(More)
Testbeds are projected to be the next generation of mechanisms for protocol verification and performance validation of wireless networks. One important objective of these testbeds is to depict the propagation mechanism accurately. This paper presents measurements and models of propagation between stationary transmitters and receivers in a dynamic(More)
Link lifetime prediction is occurs frequently in MANET routing protocols. For example, in assigning cache timeout values and route durations, routing protocols make implicit predictions of link lifetime. Some protocols even make explicit predictions. In this paper the predictability of residual link lifetimes is examined. This investigation is performed via(More)