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An optimized Gaussian beam for multicell indoor optical wireless communications
Author(s) -
Wu Dehao,
Ghassemlooy Zabih,
Zhong Wende,
Chen Chen
Publication year - 2015
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.29015
Subject(s) - delay spread , multipath propagation , path loss , optical wireless , wireless , optical wireless communications , gaussian beam , gaussian , microwave , root mean square , transmission (telecommunications) , channel (broadcasting) , electronic engineering , beam (structure) , optics , computer science , physics , engineering , telecommunications , electrical engineering , quantum mechanics
The characteristics of a multipath indoor optical wireless channel can be estimated by two parameters: optical channel path loss (OCPL) and the root mean square (RMS) delay spread. In this letter, an optimized Gaussian beam (OGB) is proposed for a cellular indoor optical wireless communications (CI‐OWC) system. The expression for OGB with an optimized beam waist radius for OGB is derived. OCPL and the RMS delay spread (D rms ) for four different configurations are simulated and analyzed. Results show that, for a CI‐OWC system, a minimum OCPL can be achieved by using the OGB and the maximum transmission data rate can be significantly extended by increasing the number of cells. © 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 57:1049–1052, 2015