Title :
Two dimensionally spread OFCDM systems for 4G mobile communications
Author :
Zhou, Yiqing ; Wang, Jiangzhou ; Ng, Tung-Sang
Author_Institution :
Univ. of Hong Kong, Hong Kong
fDate :
Oct. 30 2007-Nov. 2 2007
Abstract :
Future mobile communication systemsaim to provide extremely high speed data transmission, especially in downlink. The broadband orthogonal frequency and code division multiplexing (OFCDM) system with two-dimensional spreading (time and frequency domain spreading) is becoming a very promising technique for high speed wireless communications due to its advantages over OFDM. This paper presents the basic structure and main functions of the OFCDM system. A novel detection method for the OFCDM, called hybrid multicode interference (MCI) cancellation and minimum mean square error (MMSE) detection, is described. It has been shown in this paper that OFCDM is superior to OFDM.
Keywords :
OFDM modulation; interference suppression; least mean squares methods; mobile radio; spread spectrum communication; broadband orthogonal frequency and code division multiplexing system; cancellation and minimum mean square error detection; high speed wireless communications; hybrid multicode interference; mobile communication systems; two-dimensional spread OFCDM systems; 4G mobile communication; AWGN; Code division multiplexing; Data communication; Downlink; Fading; Frequency diversity; Frequency domain analysis; Interference; OFDM;
Conference_Titel :
TENCON 2007 - 2007 IEEE Region 10 Conference
Conference_Location :
Taipei
Print_ISBN :
978-1-4244-1272-3
Electronic_ISBN :
978-1-4244-1272-3
DOI :
10.1109/TENCON.2007.4429146
