Indoor Non-directed Optical Wireless Communications -With Lambertian Order

International Journal of Electronics and Communication Engineering

© 2015 by SSRG - IJECE Journal

Volume 2 Issue 9

Year of Publication : 2015

Authors : Nancy Aggarwal

10.14445/23488549/IJECE-V2I9P103

How to Cite?

Nancy Aggarwal, "Indoor Non-directed Optical Wireless Communications -With Lambertian Order," SSRG International Journal of Electronics and Communication Engineering, vol. 2,  no. 9, pp. 9-13, 2015. Crossref, https://doi.org/10.14445/23488549/IJECE-V2I9P103

Abstract:

This paper analyzes the Lambertian order (LO) of light-emitting diodes (LEDs) for an indoor non-directed line of sight optical wireless communication (NLOS-OWC) system. Line of Sight systems employ high degree of directionality of the transmitter and receiver and uninterrupted LOS. LOS link design reduces multipath distortion and increases power efficiency. In this, we firstly derive an expression for the LO from a conventional Lambertian LED model. Then, we analyze the indoor cell NLOS-OWC channel characteristics which include the optical power distribution and the RMS delay spread of each LED used in system by adjusting FOV.

Keywords:

we analyze the indoor cell NLOS-OWC channel characteristics which include the optical power distribution and the RMS delay spread of each LED used in system by adjusting FOV.

References:

[1]M. Castillo-Vázquez, A. Jurado-Navas, J.M. Garrido-Balsells and A. Puerta-Notario ,” Performance Evaluation of Single-Channel Receivers for Wireless Optical Communications by Numerical Simulations”.
[2]Messerschmitt ,” Simulation of Multipath Impulse Response for Indoor Wireless Optical Channels” IEEE journal on selected areas in communications, Vol. 11, No. 3, April 1993.
[3]Olivier Bouchet, Mathieu Bertrand, Pascal Besnard ,” Optical Wireless Communication LOS/WLOS/DIF propagationpropagation model and QOFI software” Collaborative project Techim@ges – Cluster Media & Networks – Brittany, France.
[4]Ghassemlooy1,*, D. Wu1, M. A. Khalighi2, and X. Tang ,” Indoor Non-directed Optical Wireless Communications -Optimization of the Lambertian Order” Journal of Electrical and Computer Engineering Innovations JECEI, Vol. 1, No. 1, 2013
[5]Tang, A., Kahn, J. & Ho, K.-P. (1996). Wireless infrared communication links usingmulti-beam transmitters and imaging receivers, IEEE International Conference on Communications, ICC 96, Conference Record, Converging Technologies for Tomorrow’s Applications., Vol. pp. 180–186vol.1.
[6]H. Elgala, R. Mesleh, and H. Haas, "Indoor optical wireless communication: potential and state-of-the-art," Communications Magazine, IEEE, vol. 49, pp. 56-62, 2011.
[7]R. Ramirez-Iniguez and R. J. Green, Optical antenna design for indoor optical wireless communication systems, International Journal of Communication Sys Systems—Special Issue on Indoor Optical Wireless Communication Systems and Networks, 18,p.p 229– 245, 2005.
[8]Jupeng, H. Zhitong, and J. Yuefeng, "Evolutionary Algorithm Based Power Coverage Optimization for Visible Light Communications," Communications Letters, IEEE, vol. 16, pp. 439-441, 2012.
[9]W. Kang and S. Hranilovic, ―Power reduction techniques for multiple-subcarrier modulated diffuse wireless optical channels, IEEE Transactions on Communication, vol. 56 no. 2, pp 279-288, February 2008
[10]J. B. Carruther and J. M. Kahn, "Angle diversity for nondirectedwireless infrared communication," Communications, IEEE Transactions on, vol. 48, pp. 960-969, 2000.
[11]R.You and J .M. Kahn, ―Upper-bounding the capacity of optical IM/DD channels with multiple – subcarrier modulation and fixed bias using trigonometric moment space method, IEEE Transactions on information Theory, vol.48, no. 2, pp. 514-523, February 2002.
[12]John R. Barry, Joseph M. Kahn, William J. Krause, Edward A. Lee, and David  Messerschmitt: Simulation of Multipath Impluse Response for Indoor Wireless Optical Channels, IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, VOL. 1 I , NO. 3,APRIL 1993.
[13]Kwonhyung, P. Hyuncheol, and J. R. Barry, "Indoor channelcharacteristics for visible light communications," IEEE Communications Letters, vol. 15, pp. 217-219, 2011.
[14]H. Elgala, R. Mesleh, and H. Haas, "Indoor optical wireless communication: potential and state-of-the-art,"Communications Magazine, IEEE, vol. 49, pp. 56-62, 2011.
[15]Damon W.K. Wong, George C.K. Chen and Jianping Yao, ―Optimization of Spot pattern in indoor diffuse optical wireless local areanetworks,‖ Optics Express 3000,Vol.13,April 2005.
[16]L. Kwonhyung, P. Hyuncheol, and J. R. Barry, "Indoor channel characteristics for visible light communications," IEEE Communications Letters, vol. 15, pp. 217-219, 2011.
[17]A. Sivabalan and J. John, Improved power distribution in diffuse indoor optical wireless systems employing multiple transmitter configurations, Optical and Quantum Electronics,38, p.p.711–725, 2006.
[18]R. Ramirez-Iniguez and R. J. Green, Optical antenna design for indoor optical wireless communication systems, International Journal of Communication Systems—Special Issue on Indoor Optical Wireless Communication Systems and Networks, 18,p.p 229–245, 2005.
[19]W. Ke, A. Nirmalathas, C. Lim, and E. Skafidas, "4×12.5 Gb/s WDM optical wireless communication system for indoor applications," Lightwave Technology, Journal of, vol. 29, pp.1988-1996, 2011.
[20]D. O'Brien, G. Parry, and P. Stavrinou, "Optical hotspots speed up wireless communication," Nature Photonics, vol. 1, pp. 245-247, 2007