Performances of turbo SAGE based equalizer for multi user multi carrier space time block coded system

Author

Ferre, G. ; Syed, M.J. ; Meghdadi, V. ; Cances, J.P. ; Dumas, J.M.

Author_Institution

Univ. of Limoges, Limoges, France

fYear

2005

fDate

4-8 Sept. 2005

Firstpage

1

Lastpage

4

Abstract

In this paper, we propose a multi-user detector for space time uplink transmission in multi-carrier CDMA systems. We propose a new combination using STBC, OFDM and CDMA spreading. Furthermore we propose a turbo equalization scheme based on the use of LDPC for channel coding and SAGE algorithm for channel estimation at the LDPC decoder input. Simulation results show that our proposed receiver has comparable performances to EM and MMSE techniques.

Keywords

OFDM modulation; channel coding; channel estimation; code division multiple access; equalisers; multiuser detection; parity check codes; space-time block codes; turbo codes; EM techniques; LDPC decoder input; MMSE techniques; OFDM; STBC; channel coding; channel estimation; multicarrier CDMA systems; multiuser detector; multiuser multi carrier space time block coded system; space time uplink transmission; turbo SAGE based equalizer scheme; Channel estimation; Decoding; OFDM; Parity check codes; Receiving antennas; Transmitting antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing Conference, 2005 13th European

Conference_Location

Antalya

Print_ISBN

978-160-4238-21-1

Type

conf

Filename

7078073