Browsing by Author "Dutta, Rudra"
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- A networking perspective for intelligent utilization of directional antennas in ad hoc wireless networks: The tandem approach(North Carolina State University. Dept. of Computer Science, 2002) Dutta, Rudra; Sichitiu, M.
- A sequence of bounds for the problem of minimizing electronic routing in wavelength routed optical rings(North Carolina State University. Dept. of Computer Science, 2000) Dutta, Rudra; Rouskas, George N.
- A survey of virtual topology design algorithms for wavelength routed optical networks(North Carolina State University. Dept. of Computer Science, 1999) Dutta, Rudra; Rouskas, George N.
- Benefits of multiple battery levels for the lifetime of large wireless sensor networks(North Carolina State University. Center for Advanced Computing and Communication, 2005) Sichitiu, Mihail L.; Dutta, Rudra
- Dynamic traffic grooming: The changing role of traffic grooming(North Carolina State University. Dept. of Computer Science, 2006) Huang, Shu; Dutta, Rudra
- Traffic grooming in star networks(North Carolina State University. Dept. of Computer Science, 2004) Chen, Bensong; Dutta, Rudra; Rouskas, George N.
- Virtual Topology Design for Traffic Grooming in WDM Networks(2001-08-06) Dutta, Rudra; George N. Rouskas, Chair; Harry G. Perros, Member; Carla D. Savage, Member; Wenke Lee, MemberWavelength division multiplexing (WDM) in optical fiber networks iswidely viewed as the technology with the potential to satisfy theever-increasing bandwidth needs of network users effectively and on asustained basis.In WDM networks, nodes are equipped with optical cross-connects(OXCs), devices which can optically switch a signal on any givenwavelength from any input port to any output port.This makes it possible to establish light paths between any pair of network nodes.A lightpath is a clear channel in which the signal remainsin optical form throughout the physical path between the two endnodes.The set of lightpaths established over the fiberlinks defines a .Consequently, the problem arises of designing virtual topologies tooptimize a performance measure of interest for a set of trafficdemands. With the deployment of commercial WDM systems, it has become apparentthat the cost of network components, especially line terminatingequipment (LTE) is the dominant cost in building optical networks, andis a more meaningful metric to optimize than, say, the number ofwavelengths.Furthermore, since the data rates at which each individual wavelengthoperates continue to increase (to OC-192 and beyond), it becomes clearthat a number of independent traffic components must be multiplexed inorder to efficiently utilize the wavelength capacity.These observations give rise to the concept of, which refers to the techniques used to combine lower speed componentsonto available wavelengths in order to meet network design goals suchas cost minimization. Traffic grooming is a hard problem in generalwhich remains computationally intractable even for simple networks. We consider the problem of traffic grooming in ring, star andtree topologies. We provide theoretical results regarding achievabilitybounds for these networks as well as practical frameworks to obtainincreasingly better feasible solutions with the expenditure of morecomputational power.
- Wireless structural health monitoring system design, implementation and validation(North Carolina State University. Center for Advanced Computing and Communication, 2006) Joshi, Harshvardan P.; Burlacu, Bogdan; Prabhu, Manjunath M.; Yoon, Suyoung; Sichitiu, Mihail L.; Dutta, Rudra; Rizkalla, Sami H.
