Dispersion analysis of 1.55um free-space optical communications through a heavy fog medium

Wu Binbin, Brian Marchant, Mohsen Kavehrad

Research output: Chapter in Book/Report/Conference proceedingConference contribution

8 Scopus citations


Free-space optical communication (FSOC) is a method by which one transmits a modulated beam of visible or infrared light through the atmosphere for broadband applications. FSOC makes connectivity possible between highrise buildings and metropolitan and intercity communication infrastructures. While radio frequency (RF) communication still dominates the commercial communications networks, it has not been able to meet the increasing demand for larger data rates. Reliable communications require a good understanding of the surrounding environment that affects the communications channel. The fundamental limitation of FSOC arises from the environment through which light propagates. The presence of particles, such as fog and clouds in the propagation channel introduces spatial and angular dispersion to the transmitted light signals. Attenuation of the light signals through the propagation medium is a combined effect of dispersion and absorption by particles. A mode of ray tracing is developed to simulate light going through the medium. A 2-D histogram is presented to investigate correlation of spatial and angular dispersion of the received light.

Original languageEnglish (US)
Title of host publicationIEEE GLOBECOM 2007 - 2007 IEEE Global Telecommunications Conference, Proceedings
Number of pages5
StatePublished - 2007
Event50th Annual IEEE Global Telecommunications Conference, GLOBECOM 2007 - Washington, DC, United States
Duration: Nov 26 2007Nov 30 2007

Publication series

NameGLOBECOM - IEEE Global Telecommunications Conference


Other50th Annual IEEE Global Telecommunications Conference, GLOBECOM 2007
Country/TerritoryUnited States
CityWashington, DC

All Science Journal Classification (ASJC) codes

  • General Engineering


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