Title :
SC-FDMA-IDMA: A Hybrid Multiple Access Scheme for LTE Uplink
Author :
Xiong, Xingzhong ; Luo, Zhongqiang
Author_Institution :
Artificial Intell. of Key Lab. of Sichuan Province, Sichuan Univ. of Sci. & Eng., Zigong, China
Abstract :
According to OFDM-IDMA suffers a peak-to-average power ratio (PAPR) problem, in this paper, we propose a hybrid multiple access scheme for LTE uplink, which combines IDMA and SC-FDMA (Single Carrier Frequency Division Multiple Access), named as SC-FDMA-IDMA. This hybrid multiple access scheme inherits many attractive features of SC-FDMA and IDMA. We discuss the performance comparison of SC-FDMA-IDMA and OFDM-IDMA. Moreover, the BER performance of different subcarrier mapping schemes for SC-FDMA-IDMA is also investigated. Simulation results show that SC-FDMA-IDMA performs better than OFDM-IDMA in PAPR for LTE uplink, and its BER performance is close to OFDM-IDMA.
Keywords :
Long Term Evolution; OFDM modulation; error statistics; frequency division multiple access; multi-access systems; BER performance; LTE uplink; OFDM-IDMA; PAPR problem; SC-FDMA-IDMA; hybrid multiple access scheme; peak-to-average power ratio problem; single carrier frequency division multiple access; subcarrier mapping schemes; Bit error rate; Interference; Multiuser detection; Peak to average power ratio; Receivers; Transmitters;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing (WiCOM), 2011 7th International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-6250-6
DOI :
10.1109/wicom.2011.6040400
