Implementation and evaluation of an OFDM-based MIMO system

Author

Liu, Zhipeng ; Parks, Jeremy S. ; Morrison, Scott A. ; Gugel, Karl S.

Author_Institution

ECE Dept., Florida Univ., Gainesville, FL, USA

Volume

1

fYear

2004

fDate

7-10 Nov. 2004

Firstpage

545

Abstract

In this paper, we consider the implementation and evaluation of an orthogonal frequency-division multiplexing (OFDM)-based multiple-input multiple-output (MIMO) communication system, which doubles the transmission data rate of the IEEE 802.11a conforming system using two transmit and two receive antennas. A function reconfigurable hardware platform is developed for the system using the Texas instruments TMS320VC33 DSP as its core processor and the high speed PCI bus as its PC-DSP interface. On this platform, we partially implement the receiver of the system. To investigate the feasibility of real-time implementation, the computational efficiency and complexity of the receiver are also evaluated, which shows that the MIMO receiver works very efficiently and will not increase the hardware complexity too much.

Keywords

IEEE standards; MIMO systems; OFDM modulation; antenna arrays; digital signal processing chips; peripheral interfaces; radio receivers; real-time systems; receiving antennas; reconfigurable architectures; system buses; telecommunication standards; transmitting antennas; wireless LAN; IEEE 802.11a; MIMO receiver; OFDM; PC-DSP interface; PCI bus; Texas instruments TMS320VC33 DSP; core processor; data transmission rate; digital signal processor; multiple-input multiple-output communication system; orthogonal frequency-division multiplexing; real-time implementation; receiving antenna; reconfigurable hardware platform; transmitting antenna; Computational efficiency; Digital signal processing; Frequency division multiplexing; Frequency estimation; Hardware; MIMO; OFDM; Receiving antennas; Transmitters; USA Councils;

fLanguage

English

Publisher

ieee

Conference_Titel

Signals, Systems and Computers, 2004. Conference Record of the Thirty-Eighth Asilomar Conference on

Print_ISBN

0-7803-8622-1

Type

conf

DOI

10.1109/ACSSC.2004.1399192

Filename

1399192