A MIMO-OFDM Receiver to Combat Multiple Frequency Offsets in Cooperative Communication
碩士 === 國立交通大學 === 電子研究所 === 99 === Synchronization is an important issue in cooperative communications. Unlike in conventional MIMO systems, the cooperative antennas belong to different relay nodes. Therefore, it is hard for the destination node to compensate multiple carrier frequency offsets (MCFO...
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| Format: | Others |
| Language: | en_US |
| Published: |
2011
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| Online Access: | http://ndltd.ncl.edu.tw/handle/45448316333797509619 |
| Summary: | 碩士 === 國立交通大學 === 電子研究所 === 99 === Synchronization is an important issue in cooperative communications. Unlike in conventional MIMO systems, the cooperative antennas belong to different relay nodes. Therefore, it is hard for the destination node to compensate multiple carrier frequency offsets (MCFOs) simultaneously and the conventional space-frequency decoding may not be suited here. In this paper, we consider the cooperative transmission with MCFOs when the channels from relay nodes to the destination node are frequency selective fading. The proposed strategy which takes cues from literature [9] combines two sets of separately synchronized signal to mitigate inter-carrier interference (ICI). Iterative interference cancellation is deployed to further improve performance and tolerance of MCFOs.
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