Hybrid precoders, consisting of an analog hardware-constrained part operating at radio frequency (RF) and a digital baseband, reduce the RF implementation complexity power consumption multi-antenna transceivers, expense some rate loss compared to all-digital precoder. The parts hybrid precoder are commonly designed by performing constrained matrix decomposition (MD) precoder, which aims minimiz...

Abstract This paper provides an assessment of Article 4.1 the Paris Agreement on climate; main goal which is to provide guidance how “to achieve long-term temperature set out in 2”. Paraphrasing, says that, this end, we should decrease greenhouse gas (GHG) emissions so that net anthropogenic GHG fall zero second half century. To aggregate emissions, 100-year global warming potentials (GWP-100) ...

Multiple-input-multiple-output (MIMO) system has become one of the major focuses in the research community of wireless communication and information theory. Due to the channel characteristics, severe inter-symbol interference (ISI) may occur to the transmitted signals. Therefore it is necessary to use an equalizer to counter the effect of the channel. The effect of fading and interference effec...

The bit error rate (BER) of Multiple Input Multiple Output (MIMO) system using Binary Phase Shift Modulation (BPSK) on Rayleigh fading channels is analyzed. Minimum Mean Squared Error, Zero Forcing and Zero Forcing with Successive Interference Cancellation algorithms are used. These Space Division Multiplexing (SDM) algorithms are programmed in MATLAB and some simulations are performed to obtai...

A model of a hard oscillator with analytic solution is presented. Its behavior under periodic kicking, for which a closed form stroboscopic map can be obtained, is studied. It is shown that the general structure of such an oscillator includes four distinct regions; the outer two regions correspond to very small or very large amplitude of the external force and match the corresponding regions in...