Implementation of the Programmable OFDM Signal Generator Based on MCU

Author

Yang Shu-hui ; Lu Yong-guang ; Gong Lin

Author_Institution

Coll. of Photoelectric Inf. & Commun. Eng., Beijing Inf. & Technol. Univ., Beijing, China

fYear

2009

fDate

24-26 Sept. 2009

Firstpage

1

Lastpage

5

Abstract

OFDM as the MCM is one of the key technologies for the 4G mobile communication. To implement the OFDM signal by hardware, we usually use the DSP device to finish IFFT process. In order to save hardware resource, reduce cost and be suitable to realize adjustment of the frequency, amplitude and phase for the OFDM signal, the paper refers to the 192 subcarrier number in DAB mode 3, firstly produces the ideal OFDM signal wave as the test standard by computer program, then adopts MCU and look-up table approach to implement a programmable OFDM signal generator. The test result show that the generator works well and the frequency, amplitude and phase can be adjusted.

Keywords

4G mobile communication; OFDM modulation; digital signal processing chips; fast Fourier transforms; microcontrollers; signal generators; table lookup; 4G mobile communication; DSP device; IFFT process; computer program; digital signal processing chips; inverse fast Fourier transform; look-up table approach; microcontroller control unit; multicarrier modulation; orthogonal frequency division multiplexing; programmable OFDM signal generator; Costs; Digital signal processing; Hardware; Integrated circuit technology; Mobile communication; OFDM modulation; Peak to average power ratio; Signal generators; Table lookup; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications, Networking and Mobile Computing, 2009. WiCom '09. 5th International Conference on

Conference_Location

Beijing

Print_ISBN

978-1-4244-3692-7

Electronic_ISBN

978-1-4244-3693-4

Type

conf

DOI

10.1109/WICOM.2009.5301859

Filename

5301859