Learn More
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)
— 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(More)
Simulation plays an important role in the verification of mobile wireless networking protocols. Recently several cities have either begun deploying or are completing plans to deploy large-scale urban mesh networks (LUMNets). On the other hand, the networking research community has little expertise in simulating such networks. While the protocols are(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)
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)
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)
It is a truism that simulations of mobile ad hoc networks (MANETs) are not realistic. Today, simulations typically model propagation with either the free-space model or a "two-ray" model. Such models are valid only in open space where there are no hills and buildings. Since wireless signal at the frequencies used for MANETs is partly reflected off of(More)
— The paper describes a distributed energy-conserving 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)