Lighting systems are undergoing a revolution from fluorescent lamps or tubes to light emitting diodes which offer greater energy efficiency and a longer lifetime.
This paper explains how location-based performance-measuring techniques in the Universal Mobile Telecommunications System (UMTS) can pinpoint vital call information like call drops, congestion, and
Measurements of the intensity of an injection locked 1.54 micron InGaAsP laser are reported.
A major challenge in the optical networking in the metropolitan area is the design of a robust and simple access scheme for building a flexible metro network.
The global content distribution infrastructure is expanding towards the edge of the Internet with cache servers deployed closer to the clients to enable a highly available and bandwidth-efficient d
The increasing number of machines and technologies involved in existing infrastructures and networks hardens their management.
The complexity of modern software systems is growing fast, with new version of software released every few months when modern development methodologies are used.
We show that for any constant $ve>0$, there is no $Omega (log^{1-ve}M)$-approximation algorithm for the directed congestion minimization problem on networks of size $M$ unless $NPsubseteq ZPTIME
We show that there is no log(1/3-epsilon) M approximation for the undirected Edge-Disjoint Paths problem unless NP subset of ZPTIME(n(polylog(n))), where M is the size of the graph and epsilon is a
Transmission of 8-bit mu-law PCM signals using M-level weighted QAM (WQAM), M=16, 64 and 256, over Gaussian and Rayleigh fading channels is examined.
