LAS-OFDM System Over Frequency Selective Fading Channel

Author

Liao, Hancheng

Author_Institution

Sch. of Electron., Jiangxi Univ. of Finance & Econ., Nanchang

fYear

2007

fDate

21-25 Sept. 2007

Firstpage

17

Lastpage

20

Abstract

With spectrum spreaded by LAS multiple access codes and orthogonal subcarriers being utilized, LAS-OFDM system bring the merits of both technologies into play. By suitably designing the spread spectrum codes and keeping the guard period enough long, inter-symbol interference and multiple access interference are eliminated, which is due to the good correlation property of LAS codes. For the transmitted signal that is subject to frequency selective fading, the decision variable is figured out. As the performance is good enough for high bit rate transmission, LAS-OFDM system is very useful in wireless or mobile communications.

Keywords

OFDM modulation; fading channels; intersymbol interference; radiofrequency interference; bit rate transmission; frequency selective fading channel; intersymbol interference; large-area-synchronized OFDM; multiple access interference; orthogonal subcarriers; Bit rate; Fading; Finance; Frequency; Interference elimination; Multiple access interference; OFDM; Spread spectrum communication; Wireless LAN; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications, Networking and Mobile Computing, 2007. WiCom 2007. International Conference on

Conference_Location

Shanghai

Print_ISBN

978-1-4244-1311-9

Type

conf

DOI

10.1109/WICOM.2007.11

Filename

4339786