Browsing by Author "Rudra Dutta, Committee Chair"
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- An Automatic, Adaptive, Ad-hoc Algorithm for Power Conservation in Sensor Networks using Switch-off(2004-07-29) Visweswara, Sharat; Mihail Sichitiu, Committee Member; Mladen Vouk, Committee Member; Rudra Dutta, Committee ChairWireless sensor networks are set to revolutionize the way we sense and control our environment. A set of nodes equipped with sensors and capable of communicating with each other in ad-hoc fashion, they relay their data to a monitoring station. What sets them apart from other ad-hoc networks is the periodic nature of the traffic and a critical dependence on a finite source of power, the battery. The battery is a bottleneck to the lifetime of the network and careful use of the battery can increase the lifetime by orders of magnitude. The periodic nature of traffic in a sensor network can be leveraged to switch the transceiver off when not needed, as shown in existing literature. We take up one such switch-off-switch-on scheduling algorithm and show how it can be extended to be robust to dynamic conditions. We then develop an analytical model, which can be used to predict the performance of the algorithm. We also identify a better way of expressing the utility of the network and quantify the benefit accruing from using the algorithm, making it possible to compare different variations of the algorithm and different configuration parameters. The model can also be used to find ways to improve the performance of the algorithm to obtain greater power efficiency.
- Measurements and Analysis of the Performance Characteristics of SIP Proxy Servers.(2010-06-11) Subramanian, Sureshkumar; Rudra Dutta, Committee Chair; Mihail Sichitiu, Committee Member; Georgios Rouskas, Committee Member; Khaled Abdel Harfoush, Committee Member
- Providing Bandwidth on Demand Services using Optical Network Design and the SILO Network Architecture.(2010-06-25) Iyer, Mohan; Rudra Dutta, Committee Chair; Georgios Rouskas, Committee Chair; Mihail Sichitiu, Committee Member; David Thuente, Committee Member
- A Routing Approach to Jamming Effects Mitigation in Wireless Multihop Networks(2010-09-30) Patel, Umang; Rudra Dutta, Committee Chair; Injong Rhee, Committee Member; Peng Ning, Committee Member
- The SILO Architecture: Exploring Future Internet Design.(2010-08-09) Wang, Anjing; Rudra Dutta, Committee Chair; Georgios Rouskas, Committee Chair; Vincent Freeh, Committee Member; Edward Gehringer, Committee Member; Ilia Baldine, Committee Member
- Stack Composition for SILO Architecture(2008-03-24) Vellala, Manoj; Rudra Dutta, Committee Chair; George Rouskas, Committee Co-Chair; Khaled Harfoush, Committee MemberSILO is a new internetworking architecture that represents a significant departure from current philosophy and practice. The architecture consists of building blocks of fine-grain functionality, explicit support for combining elemental blocks to accomplish highly configurable complex communication tasks, and control elements to facilitate (what is currently referred to as) cross-layer interactions. It takes a holistic view of network design, allowing applications to work synergistically with the network architecture and physical layers so as to meet the application's needs within resource availability constraints. The SILO research advocates a non-layered architecture based on silos of services assembled on demand and specific to an application and network environment. With the goal to facilitate what in today's layered architecture is referred to as 'cross-laye' interactions, in a manner that meets the exact user requirements and optimizes performance, the main focus of this research work is on developing mechanisms to optimize the construction of SILOs (stack of services) in a manner that takes into account service specific constraints, current network conditions and user policies.
