Study and Implementation of an Iterative Decoder for SFBC-OFDM Systems with Imperfect Channel Knowledge

Ayman Massaoudi; Noura Sellami; Nouri Masmoudi; Mohamed Siala; IEEE

doi:10.1109/MELCON.2010.5476028

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Study and Implementation of an Iterative Decoder for SFBC-OFDM Systems with Imperfect Channel Knowledge

Ayman Massaoudi, Noura Sellami, Nouri Masmoudi, Mohamed Siala and IEEE

MELECON 2010: THE 15TH IEEE MEDITERRANEAN ELECTROTECHNICAL CONFERENCE, pp.570-574

IEEE Mediterranean Electrotechnical Conference-MELECON

01/01/2010

DOI: https://doi.org/10.1109/MELCON.2010.5476028

Abstract

Engineering

Engineering, Electrical & Electronic

Science & Technology

Technology

In this paper, we consider the problem of the Space Frequency Block Codes (SFBC) decoding, according to the Maximum A Posteriori (MAP) criterion when the channel is not perfectly known at the receiver. We propose to use the Expectation Maximization (EM) algorithm to solve this problem. Simulation results show that the performance of our iterative decoder using the EM algorithm is very close to the performance obtained when the channel is perfectly known. We also propose an efficient implementation of the iterative decoder (based on the EM algorithm) on FPGA.

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Title: Study and Implementation of an Iterative Decoder for SFBC-OFDM Systems with Imperfect Channel Knowledge
Creators - without role: Ayman Massaoudi - CIT, Ariana, Tunisia
Noura Sellami - National Engineering School of Tunis
Nouri Masmoudi - National Engineering School of Tunis
Mohamed Siala - CIT, Ariana, Tunisia
IEEE
Publication Details: MELECON 2010: THE 15TH IEEE MEDITERRANEAN ELECTROTECHNICAL CONFERENCE, pp.570-574
Series: IEEE Mediterranean Electrotechnical Conference-MELECON
Publisher: IEEE
Number of pages: 5
Identifiers: 9912759508331
Academic Unit: Al Jouf University
Language: English
Resource Type: Conference proceeding