Analysis of the Effect of Vignetting on MIMO Optical Wireless Systems Using Spatial OFDM

Abstract—The performance of pixelated multiple-input multiple output optical wireless communication systems can be impaired by vignetting, w...

Hard Reset and Soft Reset for Nokia Lumia 930 Lumia 630

NOKIA has shipped a range of new Lumia Phones including Lumia 930 Lumia 620 If you simply want to return phone to factory status , just go t...