Rajiv K. Vijayakumar
Qualcomm
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Publication
Featured researches published by Rajiv K. Vijayakumar.
sensor, mesh and ad hoc communications and networks | 2005
Arindam Kumar Das; Hamed M. K. Alazemi; Rajiv K. Vijayakumar; Sumit Roy
The combination of multiple radio nodes in conjunction with a suitably structured multi-hop or mesh architecture has the potential to solve some of the key limitations of present day wireless access networks that are based on single-radio nodes. This paper ad- dresses the channel assignment problem for multi-channel multi-interface (radio) wireless mesh networks. We focus on static wireless mesh networks where multiple non- overlapping channels are available for each wireless inter- face. In this network environment, our objective is to find a fixed channel assignment which maximizes the number of bidirectional links that can be activated simultaneously, subject to interference constraints. We present two mixed integer linear programming models for solving the fixed channel assignment problem with multiple radios. Detailed computational results on various grid topologies are also presented and discussed.
global communications conference | 2006
Arindam Kumar Das; Rajiv K. Vijayakumar; Sumit Roy
The combination of multiple radio nodes in con junction with a suitably structured multi-hop or mesh architecture has the potential to solve some of the key limitations of present day wireless access networks that are based on single-radio nodes. This paper addresses the static channel assignment problem for multi-channel multi-radio static wireless mesh networks. We present four metrics based on which mesh channel assignments can be obtained. In particular, we focus on minimization of the average and maximum collision domain sizes and show that these problems are closely related to problems in combinatorial optimization such as MAX k-CUT and MIN k- PARTITION. We also present heuristic algorithms for solving the channel assignment problems using the above two metrics.
Archive | 2010
Sayeed Z. Choudhury; Rajiv K. Vijayakumar; Idreas Mir
IEEE ACM Transactions on Networking | 2009
Hui Ma; Rajiv K. Vijayakumar; Sumit Roy; Jing Zhu
Archive | 2010
Idris Mir; Rajiv K. Vijayakumar; Samson Jim; Mark Bapst
Archive | 2010
Sayeed Z. Choudhury; Rajiv K. Vijayakumar; Idris Mir
Archive | 2012
Mark Bapst; Bojin Liu; Rajiv K. Vijayakumar; Nela Gurevich
Archive | 2006
Sumit Roy; Hui Ma; Rajiv K. Vijayakumar; Jing Zhu
Archive | 2010
Jan E. Hanssen; Rajiv K. Vijayakumar; Mark Bapst
global communications conference | 2007
Anna Margolis; Rajiv K. Vijayakumar; Sumit Roy