Review All Gadget, Samsung Galaxy Note, Firmware/ Flash File, Auto Forward, Transfer from Note 7 to Computer/Mac, Transfer Data Contacts from HTC to Samsung, Chimera Tool Samsung

Senin, 30 Juni 2014

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

Analysis of the Effect of Vignetting on MIMO Optical Wireless Systems Using Spatial OFDM - do you know that every day there are new gadgets that are created, every gadget has its own way to use it, in blogs Review All Gadget we are reviewing gadgets from various brands ranging from spec, price and how to use the feature, now we are discussing iformasi that you are looking for Analysis of the Effect of Vignetting on MIMO Optical Wireless Systems Using Spatial OFDM this information we collect from many reliable sources so that complete for you. please see.

Articles : Analysis of the Effect of Vignetting on MIMO Optical Wireless Systems Using Spatial OFDM
full Link : Analysis of the Effect of Vignetting on MIMO Optical Wireless Systems Using Spatial OFDM

You can also see our article on:


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, which is the gradual fall-off in illumination at the edges of a received image. This paper investigates the effect of vignetting for a pixelated system using spatial orthogonal frequency division multiplexing (OFDM). Our analysis shows that vignetting causes attenuation and intercarrier interference (ICI) in the spatial frequency domain. MATLAB simulations indicate that for a given constellation size, spatial asymmetrically clipped optical OFDM (SACO-OFDM) is more robust to vignetting than spatial dc biased opticalOFDM (SDCO-OFDM).Moreover, for the case of SDCO-OFDM, the very large zeroth subcarrier causes severe ICI in its neighbourhood causing flattening of the bit error rate (BER) curves. We show that this BER floor can be eliminated by leaving some of the lower spatial frequency subcarriers unused. The BER performance can also be improved by applying a vignetting estimation and equalization scheme. Finally, it is shown that equalized SACO-OFDM with 16-QAM has the same overall data rate as equalized SDCO-OFDM using 4-QAM, but requires less optical power.



Block diagram of a spatial OFDM system



                     Illustration of a pixelated MIMO wireless communication system



CONTACT FOR PROJECTS 



information Analysis of the Effect of Vignetting on MIMO Optical Wireless Systems Using Spatial OFDM has been discussed

hopefully the information we provide with title Analysis of the Effect of Vignetting on MIMO Optical Wireless Systems Using Spatial OFDM can provide more benefits for you.

well this information Analysis of the Effect of Vignetting on MIMO Optical Wireless Systems Using Spatial OFDM we have finished, if you intend to bookmark or sharenya can use link https://almourasiloun2.blogspot.com/2014/06/analysis-of-effect-of-vignetting-on.html.

Tag :
Share on Facebook
Share on Twitter
Share on Google+
Tags :

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

0 komentar:

Posting Komentar