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GLOBECOM
2010
IEEE
15 years 4 months ago
Enabling Secondary Access through Robust Primary User Channel Assignment
Abstract--A common concept to mitigate the effects of spectrum scarcity is to allow opportunistic dynamic spectrum access (DSA) to licensed frequency bands. In this context, the li...
Jad Nasreddine, Andreas Achtzehn, Janne Riihij&aum...
GLOBECOM
2010
IEEE
15 years 4 months ago
The Information Propagation Speed Upper Bound in Cognitive Radio Networks
Abstract--The information propagation speed (IPS) of a network specifies how fast the information can be transmitted in a network. In this paper, we derive an IPS upper bound in co...
Chuan Han, Yaling Yang
GLOBECOM
2010
IEEE
15 years 4 months ago
Approximation Ratios of Multicast Light-Trees in WDM Networks
Abstract--All-optical multicast routing (AOMR) is implemented by the concept of light-tree in WDM networks. The costoptimal multicast light-tree is NP-hard to compute, especially w...
Fen Zhou, Miklós Molnár, Bernard Cou...
GLOBECOM
2010
IEEE
15 years 4 months ago
A Dynamic Framed ALOHA Scheme for Batch Resolution in Practical CSMA-Based Wireless Networks
Abstract--The batch resolution problem consists in arbitrating the channel access of a group of nodes in a wireless network in order to collect a single packet from each node in th...
Andrea Zanella
GLOBECOM
2010
IEEE
15 years 4 months ago
Energy-Efficient WDM Network Planning with Dedicated Protection Resources in Sleep Mode
Abstract--Energy-efficient optical networks are gaining momentum as environmental-friendly solutions with reduced operational costs. Energy-efficiency can be achieved by using devi...
Ajmal Muhammad, Paolo Monti, Isabella Cerutti, Len...