Title :
Performance Analysis of Uplink IFDMA in the Presence of Carrier Frequency Offsets
Author :
Yang, Jia ; Wu, Gang ; He, Xu ; Xiao, Yue ; Li, Shaoqian
Author_Institution :
Nat. Key Lab. of Sci. & Technol. on Commun., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
In uplink of interleaved single carrier frequency division multiple access (SC-FDMA) systems, multiple access interference (MAI) arises from different carrier frequency offsets (CFOs) from different users at the receiver. In this paper, the performance of uplink interleaved FDMA (IFDMA) in the presence of CFOs is exactly analyzed. An expression of signal to interference plus noise power ratio (SINR) is derived for the IFDMA systems in the presence of CFOs. Furthermore, an approximate average bit error ratio (BER) expression is also derived as function of the SINR, where the moment generating function is used to derive cumulative density function of SINR, under the scenario of Rayleigh fading channels. Finally, both analytical and simulated BER results are given to verify the derived results.
Keywords :
Rayleigh channels; error statistics; frequency division multiple access; BER; Rayleigh fading channels; approximate average bit error ratio; carrier frequency offsets; cumulative density function; interleaved single carrier frequency division multiple access systems; moment generating function; multiple access interference; performance analysis; signal to interference plus noise power ratio; uplink IFDMA; Bit error rate; Discrete Fourier transforms; Fading; Frequency modulation; Interference; OFDM; Signal to noise ratio;
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.2011.6040391
