BER performance improvement with combination of OVSF spreading and convolution code in inter satellite links using FSO

Author

Shah, Falak ; Shah, Karan ; Shah, Devavrat

Author_Institution

DA-IICT, Ahmedabad, India

fYear

2013

fDate

13-15 Dec. 2013

Firstpage

1

Lastpage

4

Abstract

Free-space optical communications is an emerging solution to enhance the capacity and security of inter satellite links to gigabits per second. It is widely believed to overcome data rate limitations in such links as the quantity of data gathered goes on mounting. This paper discusses the application of a combination of error control coding scheme and spreading to the inter-satellite free space optic link. For the intensity modulation/ direct detection scheme, BER performance improvement by the use of convolution coding, due to spreading operation using orthogonal vector spreading factor (OVSF) codes as pseudorandom sequence is discussed followed by suggesting a combination of both codes. The simulation results are presented for single input single output (SISO) systems.

Keywords

convolutional codes; error statistics; optical fibre communication; satellite links; telecommunication security; BER performance improvement; FSO; OVSF codes; OVSF spreading; SISO systems; convolution code; data rate limitations; error control coding scheme; free-space optical communications; intensity modulation-direct detection scheme; inter satellite links; intersatellite free space optic link; orthogonal vector spreading factor; pseudorandom sequence; single input single output systems; Adaptive optics; Bit error rate; Convolution; Encoding; Optical fiber communication; Receivers; Satellites; Free Space Optics; OVSF; SISO; convolution codes;

fLanguage

English

Publisher

ieee

Conference_Titel

India Conference (INDICON), 2013 Annual IEEE

Conference_Location

Mumbai

Print_ISBN

978-1-4799-2274-1

Type

conf

DOI

10.1109/INDCON.2013.6726115

Filename

6726115