Light wave transmission through free space using atmospheric laser links with adaptive equalization

Gamal A. Hussein; Abd El-Naser A. Mohamed; Osama A. Oraby; Emad S. Hassan; Ibrahim M. Eldokany; El-Sayed M. El-Rabaie; Moawad I. Dessouky; Saleh A. Alshebeili; Fathi E. Abd El-Samie

doi:10.1117/1.OE.52.7.077102

8 July 2013 Light wave transmission through free space using atmospheric laser links with adaptive equalization

Gamal A. Hussein, Abd El-Naser A. Mohamed, Osama A. Oraby, Emad S. Hassan, Ibrahim M. Eldokany, El-Sayed M. El-Rabaie, Moawad I. Dessouky, Saleh A. Alshebeili, Fathi E. Abd El-Samie

Author Affiliations +

Optical Engineering, Vol. 52, Issue 7, 077102 (July 2013). https://doi.org/10.1117/1.OE.52.7.077102

Abstract

The utilization of adaptive equalization in the design of atmospheric laser link transceiver architectures that can be used for television and broadcast signal interconnect between the external place of event and the master control room is suggested. At the transmitter side of the proposed transceiver; an array of atmospheric laser sources, digital signal processing, and optical radiators are used to send light waves in free space. At the receiver side, an adaptive finite impulse response least mean square (LMS) equalizer with activity detection guidance (ADG) and tap decoupling (TD) is used to mitigate the effect of channel impairments. The performance of the suggested adaptive equalizer is compared with that of the conventional adaptive equalizer based only on the standard LMS algorithm. The simulation results revealed that the adaptive LMS equalizer with ADG and TD is a promising solution for the inter-symbol interference problem in optical wireless communication systems.

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Gamal A. Hussein, Abd El-Naser A. Mohamed, Osama A. Oraby, Emad S. Hassan, Ibrahim M. Eldokany, El-Sayed M. El-Rabaie, Moawad I. Dessouky, Saleh A. Alshebeili, and Fathi E. Abd El-Samie "Light wave transmission through free space using atmospheric laser links with adaptive equalization," Optical Engineering 52(7), 077102 (8 July 2013). https://doi.org/10.1117/1.OE.52.7.077102

Published: 8 July 2013

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