Antenna Decoupling Based on Characteristic Modes Cancellation

Single Antenna Interference Cancellation Algorithm Based on Lattice Reduction

—Single antenna co-channel interference (CCI) cancellation is a challenge in mobile communication systems, especially for downlink systems. A novel single antenna CCI cancellation algorithm based on lattice reduction (LR) and decision feedback equalization scheme is proposed in this paper. The idea behind the proposed algorithm is to form a multichannel multi-user detection model through over-...

Simulation of Characteristic of Linear Degradation with Failure Modes

On the Decoupling of Heavy Modes in Kaluza-Klein Theories

In this paper we examine the 4-dimensional effective theory for the light KaluzaKlein (KK) modes. Our main interest is in the interaction terms. We point out that the contribution of the heavy KK modes is generally needed in order to reproduce the correct predictions for the observable quantities involving the light modes. As an example we study in some detail a 6-dimensional Einstein-Maxwell t...

Asynchronous interference cancellation with an antenna array

The antenna array asynchronous interference cancellation problem is addressed by means of semiblind algorithms with projections to the nite alphabet. It is observed that the conventional Least Squares (LS) solution estimated over the training interval may not be suitable for initialization of the iterative semi-blind schemes in the case of asynchronous interference. The simulation results in an...

Effect of roughness on Radiation Characteristic of Reflector Antenna Based on Multi-scale Modelling

Firstly, the wavelet analysis was used as the filter tool to separate the different scale roughness from the reflector surface testing data, and a mathematical model of the multi-scale roughness was presented to investigate its impact on the radiation characteristic of the reflector antenna. Based on the roughness model, a formulation of density of the far-field was deduced and the definable mo...