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Joint Doppler-Frequency Diversity for OFDM Systems Using Hybrid Interference Cancellation in Time-Varying Multipath Fading Channels
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- Authors
- Hyung Joon Song, Ji Hyung Kim, Sang Ho Nam, Tak Ki Yu, Dae Sik Hong
- Issue Date
- 2008-01
- Citation
- IEEE Transactions on Vehicular Technology, v.57, no.1, pp.635-641
- ISSN
- 0018-9545
- Publisher
- IEEE
- Language
- English
- Type
- Journal Article
- Abstract
- In time-varying fading channels, orthogonal frequency division multiplexing systems suffer severe performance degradation caused by interchannel interference (ICI). We utilize this ICI as a source of diversity by using a new ICI-cancellation algorithm and Wiener filter. The proposed algorithm can support joint Doppler-frequency diversity gain. In addition, both the computational complexity and total detection time are reduced. © 2008 IEEE.
- KSP Keywords
- Computational complexity, Diversity gain, Hybrid Interference Cancellation, Inter-channel interference(ICI), OFDM systems, Orthogonal Frequency-Division Multiplexing(OFDM), Time-Varying Fading Channels, Wiener Filter, detection time, frequency diversity, performance degradation