Paper Info
Title
Combined MMSE-FDE and Interference Cancellation for Uplink SC-FDMA with Carrier Frequency Offsets
Abstract
Due to its lower peak-to-average power ratio (PAPR) compared with orthogonal frequency division multiple access (OFDMA), single carrier frequency division multiple access (SC-FDMA) has been recently accepted as the uplink multiple access scheme in the Long Term Evolution (LTE) of cellular systems by the Third Generation Partnership Project (3GPP). However, similar to OFDMA, carrier frequency offset (CFO) can destroy the orthogonality among subcarriers and degrade the performance of SC-FDMA. To mitigate the effect of CFOs, we propose a combined minimum mean square error frequency-domain equalization (MMSE-FDE) and interference cancellation scheme. In this scheme, joint FDE with CFO compensation (JFC) is utilized to obtain the initial estimation for each user. In contrast to previous schemes, where the FDE and CFO compensation are done separately, in JFC, the MMSE FDE is designed to suppress the MUI after CFO compensation. To further eliminate the MUI, we combine JFC with parallel interference cancellation (PIC). In particular, we iteratively design the MMSE FDE equalizer to suppress the remaining MUI at each stage and obtain better estimation. Simulation results show that the proposed scheme can significantly improve the system performance.
Year
DOI
Venue
2010
10.1109/ICC.2010.5502340
ICC
Keywords
Field
DocType
parallel interference cancellation,orthogonal frequency division multiple access,single carrier frequency division multiple access,mean square error frequency domain equalization,ofdm modulation,least mean squares methods,frequency division multiple access,ofdma,3g mobile communication,carrier frequency offset,peak-to-average power ratio,3gpp,interference suppression,cellular system,third generation partnership project,long term evolution,uplink sc-fdma,bit error rate,frequency domain analysis,system performance,interference cancellation,minimum mean square error,estimation,iterative design,ofdm
Telecommunications,Equalization (audio),Computer science,Carrier frequency offset,Single antenna interference cancellation,Minimum mean square error,Orthogonal frequency-division multiple access,Real-time computing,Electronic engineering,Frequency-division multiple access,Orthogonal frequency-division multiplexing,Bit error rate
Conference
Volume
Issue
ISSN
null
null
1550-3607
ISBN
Citations 
PageRank 
978-1-4244-6402-9
3
0.48
References 
Authors
0
3
Name
Order
Citations
PageRank
Guoliang Chen130546.48
Yu Zhu222421.40
K. B. Letaief311078879.10