Evaluation on the capacity and outage performance of the free space optical system impaired by timing jitters over an aggregate channel

Yatian Li; Shaoai Guo; Tianwen Geng; Shuang Ma; Shijie Gao; Huibin Gao

doi:10.1117/1.OE.56.7.076108

21 July 2017 Evaluation on the capacity and outage performance of the free space optical system impaired by timing jitters over an aggregate channel

Yatian Li, Shaoai Guo, Tianwen Geng, Shuang Ma, Shijie Gao, Huibin Gao

Author Affiliations +

Optical Engineering, Vol. 56, Issue 7, 076108 (July 2017). https://doi.org/10.1117/1.OE.56.7.076108

Abstract

This paper proposed an analytical approach to evaluate the timing jitter’s impairment to the ergodic capacity and outage performance of an on-off keying wireless optical link, where the compound channel consists of Gamma–Gamma turbulence and pointing errors. Due to the complexity in deducing ergodic capacity, the closed-form bounds are developed, as well as the asymptotic limit. Meanwhile, the Gaussian–Hermite polynomial approximation is exploited to obtain the closed-form expression of outage probability in series. It has been verified by both theoretical results and the Monte-Carlo simulations that the timing jitter leads to a restriction of the ergodic capacity, even with tremendous transmitting power. In the meantime, small timing jitters could be endurable in the analysis of outage probability, whereas the large timing jitters diverge from the lower ones.

Citation Download Citation

Yatian Li, Shaoai Guo, Tianwen Geng, Shuang Ma, Shijie Gao, and Huibin Gao "Evaluation on the capacity and outage performance of the free space optical system impaired by timing jitters over an aggregate channel," Optical Engineering 56(7), 076108 (21 July 2017). https://doi.org/10.1117/1.OE.56.7.076108

Received: 5 April 2017; Accepted: 26 June 2017; Published: 21 July 2017

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