Implementation of sampling-based turbo decoder for noncoherent BFSK under Gaussian noise

Author

Orra, Mike ; Raorane, Pooja ; Wang, Chong ; Kim, Junghwan

Author_Institution

Electr. Eng. & Comput. Sci. Dept., Univ. of Toledo, Toledo, OH, USA

fYear

2010

fDate

11-14 July 2010

Firstpage

351

Lastpage

355

Abstract

This paper is concerned with the mathematical analysis for the sampling-based metric calculation for turbo decoding of noncoherent BFSK (NCBFSK) in additive white Gaussian noise (AWGN) channels, towards application in tactical applications. It is known that for NCBFSK, two decision statistics having Rician and Rayleigh characteristics must be accounted for in the decoding process. Therefore, this paper clarifies the means of using the two NCBFSK demodulator outputs so that sampling-based turbo decoding can be realized in simulation. Results for the simulations of the named waveform performances are shown for turbo coding rates 1/3, 2/3 and 3/4 under AWGN and a comparative assessment is presented.

Keywords

AWGN channels; frequency shift keying; turbo codes; additive white Gaussian noise channels; noncoherent BFSK; sampling-based turbo decoder; AWGN; Convolutional codes; Decoding; Demodulation; Mathematical model; Measurement; Turbo codes; AWGN; branch metric calculation; noncoherent BFSK (NCBFSK); sampling-based simulation; turbo decoding;

fLanguage

English

Publisher

ieee

Conference_Titel

Performance Evaluation of Computer and Telecommunication Systems (SPECTS), 2010 International Symposium on

Conference_Location

Ottawa, ON

Print_ISBN

978-1-56555-340-8

Type

conf

Filename

5588292