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A PSAM-Based Estimator of Noise and Fading Statistics for Optimum Receivers of Free Space Optics Signals
 

Summary: A PSAM-Based Estimator of Noise and Fading Statistics for Optimum
Receivers of Free Space Optics Signals
Hassan Moradi*
, Hazem H. Refai*
, Peter G. LoPresti**
, Mohammed Atiquzzaman***
*
Electrical and Computer Engineering, University of Oklahoma, Tulsa, OK.
(Tel: 918 660-3243, e-mails: hmoradi@ou.edu, hazem@ou.edu)
**
Electrical Engineering Department, University of Tulsa, Tulsa, OK.
(Tel: 918 631-3274, e-mail: pgl@ohm.ee.utulsa.edu)
***
Computer Science, University of Oklahoma, Norman, OK.
(Tel: 405 325-8077, email: atiq@ou.edu)
ABSTRACT
Incoherent receivers of Free Space Optical (FSO) signals have no knowledge of instantaneous channel state. Thus,
the receiver requires some information about the noise and fading statistics for a maximum likelihood (ML)-based
optimal detection. Using pilot-aided symbols, we develop a simple multi slot averaging (MSA) estimation technique to
approximate the values of parameters required at the incoherent detector. No channel state information (CSI) is available

  

Source: Atiquzzaman, Mohammed - School of Computer Science, University of Oklahoma

 

Collections: Computer Technologies and Information Sciences