Politecnico di Milano

Ant system: optimization by a colony of cooperating agents

An analogy with the way ant colonies function has suggested the definition of a new computational paradigm, which we call ant system (AS). We propose it as a viable new approach...

Performance evaluation and enhancement of the CSMA/CA MAC protocol for 802.11 wireless LANs

The IEEE 802.11 protocol for wireless local area networks adopts a CSMA/CA protocol with exponential backoff as medium access control technique. As the throughput performance of...

IEEE 802.11-saturation throughput analysis

To satisfy the emerging need of wireless data communications, the IEEE is currently standardizing the 802.11 protocol for wireless local area networks. This standard adopts a CS...

Constrained receding-horizon predictive control

Constrained receding-horizon predictive control (CRHPC) is intended for demanding control applications where conventional predictive control designs can fail. The idea behind CR...

Strongly Fluorescent Quaternary Cu–In–Zn–S Nanocrystals Prepared from Cu_1-<i>x</i>InS₂ Nanocrystals by Partial Cation Exchange

We report a high-yield, low cost synthesis route to colloidal Cu1-xInS2 nanocrystals with a tunable amount of Cu vacancies in the crystal lattice. These are then converted into ...

Robot shaping: developing autonomous agents through learning

Cross Resonant Optical Antenna

We propose a novel cross resonant optical antenna consisting of two perpendicular nanosized gold dipole antennas with a common feed gap. We demonstrate that the cross antenna is...

Technological regimes and innovation in services: the case of the Italian banking industry

Early stages of epitaxial growth of vanadium oxide at the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">TiO</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>(110) surface studied by photoelectron diffraction

This paper reports experimental evidence for an incipient epitaxial growth of vanadium oxide at the TiO2(110) surface. This finding is based on a x-ray photoelectron diffraction...

Asymptotically efficient blind deconvolution