Minimum word-length requirements for MIMO-OFDM

Author

Mehrnia, Alireza ; Hsu, Steve H. ; Daneshrad, Babak

Author_Institution

Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA

Volume

2

fYear

2003

fDate

1-5 Dec. 2003

Firstpage

600

Abstract

The first step in the design and implementation of a MIMO-OFDM system is to analyze the characteristics of the baseband modulated signal. This is crucial in order to minimize the complexity of the digital signal processing. This paper demonstrates the generalized derivation of the minimum word-length requirements for the main data-path in OFDM systems based on the analytical evaluation of the normalized power distribution, clipping noise effect, and essential dynamic range. We have formulated the minimum word-length requirements for the main data path in both transmitter and the receiver. The theoretical analyses are also supported by system level simulations.

Keywords

MIMO systems; OFDM modulation; antenna arrays; radio receivers; radio transmitters; receiving antennas; signal processing; transmitting antennas; MIMO-OFDM; baseband modulated signal; data path; digital signal processing; minimum word-length; noise effect clipping; normalized power distribution; receiver; transmitter; Baseband; MIMO; Multimedia communication; Multimedia systems; OFDM modulation; Peak to average power ratio; Power distribution; Space technology; Transmitters; Wireless communication;

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.2003.1258309

Filename

1258309