Layered data transmission based on training sequences in TDS-OFDM system

Author

Chang, Wenting ; Wang, Jintao ; Pan, Changyong

Author_Institution

Dept. of Electr. Eng., Tsinghua Univ., Beijing, China

fYear

2012

fDate

27-31 Aug. 2012

Firstpage

786

Lastpage

790

Abstract

In order to realize multi-service application in the time domain synchronous orthogonal frequency division multiplex (TDS-OFDM) system, a layered data transmission scheme is proposed in this paper. This scheme allows for the transmission of different services over the same bandwidth with different transmission qualities. Concretely, the second layer data stream is transmitted through modulation on training sequence, and has lower receiving sensitivity and larger coverage area. So it can be used to support mobile service, such as local news, weather. While the first layer data stream is sent as the conventional TDS-OFDM scheme. Theoretical analysis and computer simulation show that the proposed scheme works well and these two layer data streams are compatible with each other.

Keywords

OFDM modulation; demodulation; sequences; space-time codes; TDS-OFDM system; coverage area; layered data transmission; mobile service; multiservice application; time domain synchronous orthogonal frequency division multiplex; training sequences; Bit error rate; Data communication; Demodulation; OFDM; Signal to noise ratio; Training; differential modulation; layered data transmission; time domain synchronous orthogonal frequency division multiplexing (TDS-OFDM);

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications and Mobile Computing Conference (IWCMC), 2012 8th International

Conference_Location

Limassol

Print_ISBN

978-1-4577-1378-1

Type

conf

DOI

10.1109/IWCMC.2012.6314304

Filename

6314304