Space-Time Coding versus Repetition Coding for Free-Space Optical Communication

  title={Space-Time Coding versus Repetition Coding for Free-Space Optical Communication},
  author={Majid Safari and Murat Uysal},
  journal={2007 Conference Record of the Forty-First Asilomar Conference on Signals, Systems and Computers},
In this paper, we investigate spatial diversity techniques for free-space optical (FSO) links with intensity modulation and direct detection (IM/DD) over log-normal atmospheric turbulence-induced fading channels. We consider the deployment of space-time block codes and repetition codes. Our performance analysis demonstrates that although both schemes are able to extract full diversity, repetition codes outperform their counterparts. The performance gap increases as the number of transmit… CONTINUE READING

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