@inproceedings{4c0c48ebd0544eaaa80cd717233e8b60,
title = "DFT-based channel estimation performance analysis and a robust estimation algorithm in MIMO OFDM systems with virtual carriers",
abstract = "MIMO-OFDM systems can effectively improve system capacity without increasing channel bandwidth and transmit power. However, they need more accurate channel estimation. Conventional DFT-based channel estimation(CE) suffers from the dispersive distortion due to virtual carriers(VCs). In this paper, the performance of time domain filtering Least Square (LS) CE algorithm for MIMO-OFDM systems with VCs is analyzed. A concise expression which reveals the relationship between the maximal estimation error variance among all the carriers and the design parameters is provided. Then a robust CE method is presented. Simulation results show that this method can improve estimation performance significantly even when the channel length information is overestimated.",
author = "Ngyu Li and Chenyang Yang",
year = "2006",
doi = "10.1109/ICOSP.2006.345877",
language = "英语",
isbn = "0780397371",
series = "International Conference on Signal Processing Proceedings, ICSP",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
booktitle = "8th International Conference on Signal Processing, ICSP 2006",
address = "美国",
note = "8th International Conference on Signal Processing, ICSP 2006 ; Conference date: 16-11-2006 Through 20-11-2006",
}