Title :
Performance comparison of SC-FDMA-CDMA and OFDM-CDMA systems for uplink
Author :
Luo, Zhongqiang ; Xiong, Xingzhong
Author_Institution :
Artificial Intell. of Key Lab. of Sichuan Province, Sichuan Univ. of Sci. & Eng., Zigong, China
Abstract :
This paper presents the performance comparison of Single Carrier Frequency Division Multiple Access-Code Division Multiple Access (SC-FDMA-CDMA) and Orthogonal Frequency Division Multiplexing-Code Division Multiple Access (OFDM-CDMA) systems for uplink. We investigate the basic principle and the similarities and differences of these different schemes. According to these schemes, we discuss the performance of SC-FDMA-CDMA and OFDM-CDMA. Moreover, we give the performance of different sub-carrier mapping schemes for SC-FDMA-CDMA, namely Localized Frequency Division Multiple Access (LFDMA), Interleaved Frequency Division Multiple Access (IFDMA) and hybrid subcarrier mapping (LFDMA+IFDMA). Simulation and test results show that SC-FDMA-CDMA performs better than OFDM-CDMA in PAPR for uplink, and its BER performance is close to OFDM-CDMA.
Keywords :
OFDM modulation; code division multiple access; error statistics; frequency division multiple access; BER; OFDM-CDMA systems; SC-FDMA-CDMA; code division multiple access; hybrid subcarrier mapping; interleaved frequency division multiple access; localized frequency division multiple access; orthogonal frequency division multiplexing; sub-carrier mapping; Bit error rate; Modulation; Multiaccess communication; Peak to average power ratio; Periodic structures; Signal to noise ratio; DS-CDMA; OFDM; OFDM-CDMA; SC-FDMA; SC-FDMA-CDMA;
Conference_Titel :
Consumer Electronics, Communications and Networks (CECNet), 2011 International Conference on
Conference_Location :
XianNing
Print_ISBN :
978-1-61284-458-9
DOI :
10.1109/CECNET.2011.5768185
