IEEE conference awards 'best student paper' to group from Stevens

January 19, 2006

The paper, "Real-Time Secondary Spectrum Sharing with Quality of Service Provisioning," written by a group from Stevens Institute of Technology's Multimedia System, Networking and Communications (MSyNC) Lab in the Electrical and Computer Engineering department, was awarded the Best Student Paper Award at the IEEE Consumer Communications and Networking Conference (CCNC), 2006. The paper's contributors are Yiping Xing and Chetan N. Mathur, doctoral students; M.A. Haleem, a postdoctoral researcher; R. Chandramouli, Associate Professor; and K.P. Subbalakshmi, Assistant Professor.

The award committee included leading experts from industry and academia who selected the paper as the best student paper from among 220 accepted papers.

The paper deals with quality of service (QoS) issues in secondary spectrum access subject to an interference temperature constraint, in a dynamic spectrum access wireless network. This is cast as a non-linear optimization problem, and solved. When not all the secondary links can be supported with their QoS requirement, a reduced-complexity searching algorithm is proposed to find the optimal subset of links. The paper also considers a game-theoretic perspective of this problem, proving that a Nash equilibrium solution exits.

"The idea we propose addresses the FCC's spectrum policy reform. This idea is applicable to state-of-the-art technology called software-defined radio or cognitive radio," said Chandramouli.

"In the future, these software-defined radio/wireless devices are expected to become prevalent and use the wireless spectrum more efficiently due to the spectrum policy reform. Our research proposes ideas on how efficiently to use the wireless spectrum, taking an economic perspective," said Subbalakshmi.

The conference details can be found at
About Stevens Institute of Technology
Established in 1870, Stevens offers baccalaureate, masters and doctoral degrees in engineering, science, computer science, management and technology management, as well as a baccalaureate in the humanities and liberal arts, and in business and technology. Located directly across the Hudson River from Manhattan, the university has enrollments of approximately 1,780 undergraduates and 2,700 graduate students, and a current enrollment of 2,250 online-learning students worldwide. For the latest news about Stevens, please visit

Stevens Institute of Technology

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