Multirate MC-DS-CDMA transmitter for 4G communications

Author

Barbancho, Isabel ; Barbancho, Ana M. ; Tardon, Lorenzo J. ; Peinado, Alberto

Author_Institution

Dep. Ingeneria de Comunicaciones, Malaga Univ., Spain

Volume

2

fYear

2004

fDate

26-29 Sept. 2004

Firstpage

904

Abstract

The scheme of a multirate 4G transmitter based on MC-DS-CDMA is proposed. The system is designed to minimize intercarrier interference (ICI) and multiaccess interference (MAI), taking into account the autocorrelation properties of the CDMA codes assigned to each user on each subcarrier. The system employs two layered spreading codes in a similar way to UMTS, so it will be simple to design terminals that support both systems. The proposed scheme can be employed in both synchronous or asynchronous uplink and downlink. The transmitter is very versatile and it provides multiple possibilities to allow multirate users.

Keywords

3G mobile communication; 4G mobile communication; OFDM modulation; code division multiple access; interference suppression; radio transmitters; radiofrequency interference; spread spectrum communication; 4G communications; OFDM; UMTS; asynchronous link; intercarrier interference; interference minimization; layered spreading codes; multiaccess interference; multirate MC-DS-CDMA transmitter; synchronous link; 3G mobile communication; Autocorrelation; Degradation; Downlink; Frequency division multiplexing; Multiaccess communication; Multiple access interference; OFDM; Telecommunications; Transmitters;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2004. VTC2004-Fall. 2004 IEEE 60th

ISSN

1090-3038

Print_ISBN

0-7803-8521-7

Type

conf

DOI

10.1109/VETECF.2004.1400152

Filename

1400152