Performance comparison of NRZ and RZ modulations with and without forward error corrections for free-space optical communication

Naresh Chand; John J. Loriz; Andrew J. Hunton; Bruce M. Eteson

doi:10.1117/12.621393

12 September 2005 Performance comparison of NRZ and RZ modulations with and without forward error corrections for free-space optical communication

Naresh Chand, John J. Loriz, Andrew J. Hunton, Bruce M. Eteson

Author Affiliations +

Proceedings Volume 5892, Free-Space Laser Communications V; 58920U (2005) https://doi.org/10.1117/12.621393
Event: Optics and Photonics 2005, 2005, San Diego, California, United States

Abstract

Our free-space optical (FSO) communication experiments show that, compared to non-return-to-zero (NRZ) encoding, return-to-zero (RZ) data format is more robust to atmospheric turbulence. A forward error correction coding gain up to 5 dB is obtained at a bit error-rate of 1x10^-15 for FSO link with Reed-Solomon (255,239) generic FEC (GFEC) which is specified in ITU-T G.709 standards. The coding gain increases further up to 1.6 dB with enhanced FEC (EFEC) that adds no additional overheads. Still, the link-margin with both GFEC and EFEC decreases with atmospheric turbulence.

Citation Download Citation

Naresh Chand, Naresh Chand, John J. Loriz, John J. Loriz, Andrew J. Hunton, Andrew J. Hunton, Bruce M. Eteson, Bruce M. Eteson, "Performance comparison of NRZ and RZ modulations with and without forward error corrections for free-space optical communication", Proc. SPIE 5892, Free-Space Laser Communications V, 58920U (12 September 2005); doi: 10.1117/12.621393; https://doi.org/10.1117/12.621393

ACCESS THE FULL ARTICLE

PERSONAL SIGN IN
Full access may be available with your subscription

Email or Username Forgot your username?

Password Forgot your password?

Show

Remember Email/Username on this computer

Remember Password

No SPIE account? Create an account
or Institutional Sign In via Shibboleth

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $14.40

Non-members: $18.00 ADD TO CART

Show All Keywords

Keywords/Phrases

Search In:

Publication Years