A modified multicode CDMA scheme with FDE and its equivalence with OFDMA

Author

Cianca, Ernestina ; Valente, Daniela ; Prasad, Ramjee

Author_Institution

Center for TeleInFrastruktur (CTIF)-Italy, Univ. of Rome Tor Vergata, Rome

fYear

2008

Firstpage

1

Lastpage

4

Abstract

The evolution of air interfaces for 4G wireless systems often appears as an OFDM-CDMA battle which OFDM is going to win. This paper reviews this point of view and highlights some other features of this evolution. The paper presents a novel multicode DS-CDMA scheme which has the same advantages as OFDMA over frequency selective channels: good performance with low complexity one-tap receiver. Actually, OFDMA can be seen as a special case of the proposed scheme. The analysis of this scheme will help identifying the main features of the evolution of the air interfaces towards 4G.

Keywords

4G mobile communication; OFDM modulation; code division multiple access; frequency division multiple access; 4G wireless systems; DS-CDMA scheme; FDE; OFDMA; frequency selective channels; modified multicode CDMA; orthogonal frequency division multiple access; Downlink; Frequency conversion; Interference; Long Term Evolution; Multiaccess communication; OFDM; Protection; RAKE receivers; WiMAX; Wireless sensor networks;

fLanguage

English

Publisher

ieee

Conference_Titel

Personal, Indoor and Mobile Radio Communications, 2008. PIMRC 2008. IEEE 19th International Symposium on

Conference_Location

Cannes

Print_ISBN

978-1-4244-2643-0

Electronic_ISBN

978-1-4244-2644-7

Type

conf

DOI

10.1109/PIMRC.2008.4699887

Filename

4699887