A successive interference cancellation (SIC) structure is proposed for multiuser interference cancellation (MUI) due to carrier frequency offsets (CFOs) in the uplink of orthogonal frequency division multiple access (OFDMA) systems. The proposed architecture adopts a circular convolution to suppress the impacts caused by CFOs. This paper demonstrates that, with 2 iterations, the SIC has better performance than that of the parallel interference cancellation (PIC), but system complexity is only 1/2K, where K is the number of users in the uplink of OFDMA system. This study also shows that system complexity can be significantly reduced if proper approximation is made.
| Identifer | oai:union.ndltd.org:NSYSU/oai:NSYSU:etd-0820106-012028 |
| Date | 20 August 2006 |
| Creators | Wang, Sen-Hung |
| Contributors | Der-Feng Tseng, Tsang-Yi Wang, Tsung-Hsien Liu, none, Chih-Peng Li |
| Publisher | NSYSU |
| Source Sets | NSYSU Electronic Thesis and Dissertation Archive |
| Language | English |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0820106-012028 |
| Rights | restricted, Copyright information available at source archive |
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