Zobrazeno 1 - 10
of 45
pro vyhledávání: '"Krishnan Kumaran"'
Publikováno v:
Day 2 Tue, September 25, 2018.
While drilling rig control systems have been deployed for many years, a 2016 study [1] identified significant room for improvement in three areas: auto-drillers, top drive torsional damping systems, and heave compensation systems. In particular, in a
Clustering and classification critically rely on distance metrics that provide meaningful comparisons between data points. To this end, learning optimal distance functions from data, known as metric learning, aims to facilitate supervised classificat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ef4bf175a7ecd93eef5e7ab4aaa1c4d2
http://arxiv.org/abs/1803.10647
http://arxiv.org/abs/1803.10647
Autor:
Harish Viswanathan, Krishnan Kumaran
Publikováno v:
IEEE Transactions on Communications. 53:645-655
We consider scheduling strategies for multiantenna and multibeam cellular wireless systems for high-speed packet data services on the downlink. We establish a fundamental connection between the stability region of the queuing system and the set of fe
Autor:
Kavita Ramanan, Phil Whiting, Rajiv Vijayakumar, Krishnan Kumaran, Alexander L. Stolyar, Matthew Andrews
Publikováno v:
Probability in the Engineering and Informational Sciences. 18:191-217
We consider the following queuing system which arises as a model of a wireless link shared by multiple users. There is a finite number N of input flows served by a server. The system operates in discrete time t = 0,1,2,…. Each input flow can be des
Publikováno v:
IEEE Journal on Selected Areas in Communications. 21:1441-1451
A time-domain wavelength interleaved network (TWIN) (Widjaja, I. et al., IEEE Commun. Mag., vol.41, 2003) is an optical network with an ultrafast tunable laser and a fixed receiver at each node. We consider the problem of scheduling bursts of data in
Publikováno v:
Operations research letters, 31(2):10.1016/S0167-6377(02)00191-8, 95-100. Elsevier
We show that the fluid loss ratio in a fluid queue with finite buffer b and constant link capacity c is always a jointly convex function of b and c. This generalizes prior work by Kumaran and Mandjes (Queueing Systems 38 (2001) 471), which shows conv
Publikováno v:
Bell Labs Technical Journal. 6:82-97
Optical devices are poised to form the core of the next generation of backbone and enterprise networks. Optical routers, dense wavelength division multiplexing (DWDM) systems, and cross connects of unprecedented capacities are on the verge of large-s
Publikováno v:
Wireless Networks. 8:61-71
We discuss a statistical model to generate correlated shadow-fading patterns for wireless systems in the absence of detailed propagation and landscape information. The currently available autocorrelation models result in anomalous effects that depend
Autor:
Michel Mandjes, Krishnan Kumaran
Publikováno v:
Queueing Systems. 38:471-483
To achieve a constant overflow probability, the two queueing resources, viz. buffer and bandwidth, can be traded off. In this paper we prove that, under general circumstances, the corresponding trade-off curve is convex in the ‘many-sources scaling
Autor:
Alexander L. Stolyar, R. Vijayakumar, Krishnan Kumaran, Philip Whiting, Matthew Andrews, Kavita Ramanan
Publikováno v:
IEEE Communications Magazine. 39:150-154
We propose an efficient way to support quality of service of multiple real-time data users sharing a wireless channel. We show how scheduling algorithms exploiting asynchronous variations of channel quality can be used to maximize the channel capacit