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Free space performance comparison of MIMO terminal antennas in noise- and interference-limited urban environments

This contribution comprises a comparison of capacity performances of MIMO terminal antenna configurations for smart phones at 2.65 GHz, measured in an extensive 2×2 MIMO measurement campaign in noise- and interference-limited urban environments. Whereas, on average along the route, the performances where dictated by the received power, locally the eigenvalue dispersion of the communication channel

Usage-Based Reading - An Experiment to Guide Reviewers with Use Cases

Reading methods for software inspections are used for aiding reviewers to focus on special aspects in a software artefact. Many experiments have been conducted for checklist-based reading and scenario-based reading concluding that the focus is important for software reviewers. This paper describes and evaluates a reading technique called usage-based reading (UBR). UBR utilises prioritised use case

Quantum dots-in-a-well infrared photodetectors for long wavelength infrared detection

We report on a quantum dots-in-a-well infrared photodetector (DWELL QDIP) grown by metal organic vapor phase epitaxy. The DWELL QDIP consisted of ten stacked InAs/In0.15Ga0.85As/GaAs QD layers embedded between n-doped contact layers. The density of the QDs was about 9 x 1010 cm-2 per QD layer. The energy level structure of the DWELL was revealed by optical measurements of interband transitions, an

Physical limitations on broadband scattering

In this paper, physical limitations on broadband scattering are presented for heterogeneous anisotropic scatterers of arbitrary shape. A measure of broadband scattering in terms of the extinction cross section is derived based on the holomorphic properties of the forward scattering dyadic. An isoperimetric bound for isotropic material parameters is presented and ellipsoidal scatterers are discusse