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Proceedings Paper

Dual header pulse interval modulation (DH-PIM) in FSO communications
Author(s): Tianping Deng; Kai Peng; Yimin Lu; Gang Lu
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Paper Abstract

Recently, free space optical communication has attracted a considerable amount of interest as an alternative medium to radio for wireless transmission. It has many advantages such as a huge unregulated bandwidth, high data rates, and resistance to multi-path fading relative security against eavesdropping. The work presented in this thesis focuses on modulation schemes. Concerns of eye safety and power consumption limit the average transmitter power, which suggests that modulation techniques possessing a high peak-to-mean power ratio are favorable. This is generally achieved by trading off power efficiency against bandwidth efficiency. A novel dual-header pulse interval modulation (DH-PIM) for optical wireless communications is proposed in this paper. The symbol structure, the spectral properties, and the expression for bandwidth requirement and optical power requirement of DH-PIM in the absence of and in the presence of multi-path dispersion is presented in this paper.

Paper Details

Date Published: 10 November 2007
PDF: 6 pages
Proc. SPIE 6795, Second International Conference on Space Information Technology, 67950A (10 November 2007); doi: 10.1117/12.772892
Show Author Affiliations
Tianping Deng, Huazhong Univ. of Science and Technology (China)
Kai Peng, Huazhong Univ. of Science and Technology (China)
Yimin Lu, Huazhong Univ. of Science and Technology (China)
Gang Lu, Huazhong Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 6795:
Second International Conference on Space Information Technology

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