Title :
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
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;
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
DOI :
10.1109/PIMRC.2008.4699887
