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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Shiratsuchi, H. Iwasaki, N. Tanaka, H. Ishibashi, T. Haratani, N. Nakano, Y. Gotanda, H. |
| Copyright Year | 2010 |
| Description | Author affiliation: Graduate School of Computer Science and Systems Engineering, Kyushu Institute of Technology 680-4 Kawazu, Iizuka, Fukuoka 820-8502 Japan (Iwasaki, N.) || Department of Information, Communication and Electronic Engineering, Kumamoto National College of Technology 2659-2 Suya, Koshi, Kumamoto 861-1102, Japan (Ishibashi, T.) || Graduate School of Advanced Technology, Kinki University 11-6 Kayanomori, Iizuka, Fukoka 820-8555 Japan (Shiratsuchi, H.; Tanaka, H.; Haratani, N.; Nakano, Y.; Gotanda, H.) |
| Abstract | In this paper we propose a blind estimation of fading coefficients without using the pilot symbols in QAM-OFDM systems subjected to carrier frequency offset (CFO), where the phases of the fading coefficients are within ±7r/4. First, under a frequency selective fading channel, the inter-carrier interference (ICI) due to CFO is formulated in the framework of independent component analysis (ICA). Then the permutation and scale uncertainty inherent in ICA is resolved and CFO is estimated. Next, based on the CFO estimation results, the fading coefficients are estimated by use of the fact that symbol constellation at each sub-carrier is stretched/shrunk and rotated according to the value of its fading coefficient. Then, the unknown transmitted symbols are restored by use of the coefficient estimates. Finally, the validity of the proposed approach is confirmed from several simulations for 16QAM-OFDM. |
| Starting Page | 1330 |
| Ending Page | 1335 |
| File Size | 431603 |
| Page Count | 6 |
| File Format | |
| ISBN | 9781424468898 |
| e-ISBN | 9781424468904 |
| DOI | 10.1109/TENCON.2010.5686069 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2010-11-21 |
| Publisher Place | Japan |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Fading Estimation Bit error rate OFDM Signal to noise ratio Interference Channel estimation |
| Content Type | Text |
| Resource Type | Article |
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