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GLOBECOM
2008
IEEE
15 years 10 months ago
Comparison of Routing and Wavelength Assignment Algorithms in WDM Networks
- We design and implement various algorithms for solving the static RWA problem with the objective of minimizing the maximum number of requested wavelengths based on LP relaxation ...
Kostas Christodoulopoulos, Konstantinos Manousakis...
GLOBECOM
2008
IEEE
15 years 10 months ago
Power-Cost-Effective Node Architecture for Light-Tree Routing in WDM Networks
—We present a novel cost-effective multicast capable optical cross connect (MC-OXC) node architecture which improves efficiency of optical power by constraining splitting to only...
G. M. Fernandez, David Larrabeiti, C. Vazquez, P. ...
GLOBECOM
2008
IEEE
15 years 10 months ago
Power Allocation in Wireless Relay Networks: A Geometric Programming-Based Approach
—1 In this paper, we consider an amplify-and-forward (AF) wireless relay system where multiple source nodes communicate with their corresponding destination nodes with the help o...
Khoa T. Phan, Tho Le-Ngoc, Sergiy A. Vorobyov, Chi...
GLOBECOM
2008
IEEE
15 years 10 months ago
Collusion-Resistant Multi-Winner Spectrum Auction for Cognitive Radio Networks
—In order to fully utilize spectrum, auction-based dynamic spectrum allocation has become a promising approach which allows unlicensed wireless users to lease unused bands from s...
Yongle Wu, Beibei Wang, K. J. Ray Liu, T. Charles ...
GLOBECOM
2007
IEEE
15 years 10 months ago
A Generalized Gradient Scheduling Algorithm in Wireless Networks for Variable Rate Transmission
— Average transmission rate and rate oscillation are two important performance metrics for most wireless services. Both are often needed to be optimized in multi-user scheduling ...
Xiaolu Zhang, Meixia Tao, Chun Sum Ng