## Subcarrier Intensity Modulated Wireless Optical Communications With Rectangular QAM |

Journal of Optical Communications and Networking, Vol. 4, Issue 6, pp. 522-532 (2012)

http://dx.doi.org/10.1364/JOCN.4.000522

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### Abstract

The average symbol error rate is studied for subcarrier intensity modulated wireless optical communication systems employing general order rectangular quadrature amplitude modulation. We consider three different turbulence channel models, i.e., the Gamma–Gamma channel, the *K*-distributed channel, and the negative exponential channel with different levels of turbulence. Closed-form error rate expressions are derived using a series expansion of the modified Bessel function. In addition, detailed truncation error analysis and asymptotic error rate analysis are also presented. Numerical results demonstrate that our series solutions are highly accurate and efficient.

© 2012 OSA

**OCIS Codes**

(010.1300) Atmospheric and oceanic optics : Atmospheric propagation

(010.1330) Atmospheric and oceanic optics : Atmospheric turbulence

(060.4510) Fiber optics and optical communications : Optical communications

**ToC Category:**

Research Papers

**History**

Original Manuscript: March 6, 2012

Revised Manuscript: May 5, 2012

Manuscript Accepted: May 6, 2012

Published: May 29, 2012

**Citation**

Md. Zoheb Hassan, Xuegui Song, and Julian Cheng, "Subcarrier Intensity Modulated Wireless Optical Communications With Rectangular QAM," J. Opt. Commun. Netw. **4**, 522-532 (2012)

http://www.opticsinfobase.org/jocn/abstract.cfm?URI=jocn-4-6-522

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