Synchronization requirements for COFDM systems with transmit diversity

Author

Speth, Michael ; Meyr, Heinrich

Author_Institution

Infineon Technol., Dusseldorf, Germany

Volume

3

fYear

2003

fDate

1-5 Dec. 2003

Firstpage

1252

Abstract

COFDM in combination with transmit and receive diversity is an attractive technique to increase robustness and throughput of wireless data transmission. In this paper we examine whether the sensitivity of COFDM to synchronization errors is further aggravated by these multiinput multioutput (MIMO) scenarios. A MIMO transmission model including synchronization errors is developed. Analytical expressions for the resulting disturbances are derived and verified against simulations. An analysis of the effects on optimal MIMO decoding shows that the resulting disturbances can no longer be modelled as white Gaussian noise.

Keywords

MIMO systems; OFDM modulation; antenna arrays; data communication; decoding; diversity reception; modulation coding; radiocommunication; synchronisation; COFDM system; MIMO transmission model; coded orthogonal frequency division multiplexing; multiinput multioutput scenario; receive diversity; synchronization requirement; transmit diversity; wireless data transmission; Data communication; Decoding; Frequency synchronization; Gaussian noise; Interference; MIMO; OFDM; Power system modeling; Receiving antennas; Transmitters;

fLanguage

English

Publisher

ieee

Conference_Titel

Global Telecommunications Conference, 2003. GLOBECOM '03. IEEE

Print_ISBN

0-7803-7974-8

Type

conf

DOI

10.1109/GLOCOM.2003.1258439

Filename

1258439