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Improving intergroup synchronization in a ring topology structure of semiconductor lasers by asymmetric coupling

We numerically demonstrate the enhancement of intergroup synchronization in a ring topology structure consisting of four semiconductor lasers (SLs) by asymmetric coupling. The lasers are divided into two groups, each of which consists of two non-adjacent lasers with the same…

December 19, 2015 · by NS3 Tutorial ·

A novel fiber with ultra-low-loss and large-effective-area for the next generation communication

Fiber loss and nonlinear effect are the main important factors for high-speed coherent communication. A novel communication fiber with ultra-low loss (0.165dB/km) & large effective area (about 110µm2) at 1550nm wavelength is proposed. Compared to the conventional single-mode fiber, it…

December 19, 2015 · by NS3 Tutorial ·

Advanced fiber Bragg gratings for microwave photonics applications

Owing to the unique features of flexible spectral characteristics, low loss, light weight, compact footprint, and compatibility with other fiber-optic elements, fiber Bragg gratings (FBGs) have been extensively used in various microwave photonics systems. In this work, the recent development…

December 19, 2015 · by NS3 Tutorial ·

A new method of generating public key matrix and using it for image encryption

It is very difficult to find the inverse of a matrix in Galois field using standard matrix inversion algorithms. Hence, any block-based encryption process involving matrix as a key will take considerable amount of time for decryption. The inverse of…

December 19, 2015 · by NS3 Tutorial ·

Single photon emitters in dilute nitrides: Towards a determinist approach of quantum dot-photonic crystal nanocavity coupling

In dilute nitrides [e.g., Ga(AsN), (InGa)(AsN)] the formation of stable N-2H-H complexes following H irradiation removes the effects nitrogen has on the optical (i.e., refractive index [1]), structural [2], and electronic [3] properties of the material. In particular, H binding…

December 19, 2015 · by NS3 Tutorial ·

Computationally efficient implementation of a Hamming code decoder using graphics processing unit

This paper presents a computationally efficient implementation of a Hamming code decoder on a graphics processing unit (GPU) to support real-time software-defined radio, which is a software alternative for realizing wireless communication. The Hamming code algorithm is challenging to parallelize…

December 19, 2015 · by NS3 Tutorial ·

The effect of channel estimation errors on the energy efficiency of downlink massive MIMO systems

In this paper the effect of channel estimation errors on the energy efficiency of a downlink massive multiple-input multiple-output system is investigated and analyzed. The required downlink transmit power of the zero forcing (ZF) and maximum ratio transmission (MRT) precoding…

December 19, 2015 · by NS3 Tutorial ·

Microwave photonic notch filter with a flat passband and large free spectral range frequency response

A new multiple-tap microwave photonic signal processing structure that can realize a flat passband and large free spectral range notch filter response is presented. It is based on a polarization modulator followed by a length of polarization maintaining fiber and…

December 19, 2015 · by NS3 Tutorial ·

Memory-Optimised Parallel Processing of Hi-C Data

This paper presents the optimisation efforts on the creation of a graph-based mapping representation of gene adjacency. The method is based on the Hi-C process, starting from Next Generation Sequencing data, and it analyses a huge amount of static data…

December 19, 2015 · by NS3 Tutorial ·

A Scalable Projective Scaling Algorithm for lp Loss With Convex Penalizations

This paper presents an accurate, efficient, and scalable algorithm for minimizing a special family of convex functions, which have a lp loss function as an additive component. For this problem, well-known learning algorithms often have well-established results on accuracy and efficiency,…

December 19, 2015 · by NS3 Tutorial ·