Tarun Banka

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Routing algorithms for wireless sensor networks are constrained by power, memory and computational resources. Rumor routing algorithm for sensor-networks spreads the information of an event to other nodes in the network, thus enabling queries to discover paths to the events. Zonal rumor routing (ZRR) is an extension to the rumor routing algorithm. ZRR(More)
As sensor nodes are subject to strict power limitations and often deployed in harsh environments, there is significant potential for a node to be hidden from another node. The impact of hidden nodes on performance of the IEEE 802.15.4 low-rate wireless personal area network protocol is evaluated. At lower Tx power, as a result of hidden nodes, there are(More)
An ad hoc grid is a heterogeneous computing and communication system that allows a group of mobile devices to accomplish a mission, 15 often in a hostile environment. Energy management is a major concern in ad hoc grids. The problem studied here focuses on statically assigning resources in an ad hoc grid to an application composed of communicating subtasks.(More)
Summary form only given. An ad hoc grid is a heterogeneous computing and communication system without a fixed infrastructure; all of its components are mobile. Energy management is a major concern in an ad hoc grid. One important aspect of energy management is to minimize the energy consumption during a mission. In an ad hoc grid, communication and(More)
Out of order arrival of packets is an inevitable phenomenon on the Internet. Application performance can degrade to a great extent due to out-of-order arrival of packets. Metrics to characterize the degree of reordering will promote the evaluation of network protocols with respect to packet reordering as well as provide a uniformly defined quantitative(More)
Status of this Memo By submitting this Internet-Draft, each author represents that any applicable patent or other IPR claims of which he or she is aware have been or will be disclosed, and any of which he or she becomes aware will be disclosed, in accordance with Section 6 of BCP 79. Internet-Drafts are working documents of the Internet Engineering Task(More)
A formal approach for characterizing, evaluating and modeling packet reordering is presented. Reordering is, a phenomenon that is likely to become increasingly common on the Internet, and it can have an adverse impact on end-to-end performance and network resource utilization. Reorder density (RD) is a comprehensive metric for reordering. Several properties(More)
An ad hoc grid is a heterogeneous computing system composed of mobile devices. Each computing resource is constrained in battery energy. The problem being studied is to assign statically computing resources to the subtasks of an application that has an execution time constraint, when the resources are oversubscribed. All subtasks must be executed; to(More)
An ad hoc grid is a heterogeneous computing system composed of mobile devices. The problem studied here is to statically assign resources to the subtasks of an application, which has an execution time constraint, when the resources are oversubscribed. Each subtask has a preferred version, and a secondary version that uses fewer resources. The goal is to(More)
Increasing internal parallelism within nodes due to increase in links speeds, and external parallelism among the links due to QoS, ad hoc routing in wireless, etc., point to a significant increase in packet reordering. Application performance degrades considerably due to out-of-order arrivals as well. The concept of " Reorder Buffer-occupancy Density "(More)