文件列表:

+Channel (0, 2018-07-03)
+Channel\FastFading.m (30623, 2018-07-03)
+ChannelEstimation (0, 2018-07-03)
+ChannelEstimation\ImaginaryInterferenceCancellationAtPilotPosition.m (14496, 2018-07-03)
+ChannelEstimation\PilotSymbolAidedChannelEstimation.m (10998, 2018-07-03)
+Modulation (0, 2018-07-03)
+Modulation\FBMC.m (41490, 2018-07-03)
+Modulation\OFDM.m (19749, 2018-07-03)
+Modulation\SignalConstellation.m (14169, 2018-07-03)
DoublySelectiveChannelEstimation.m (43977, 2018-07-03)
LICENSE (35147, 2018-07-03)
SimpleVersion_DoublyFlat.m (12431, 2018-07-03)
Theory (0, 2018-07-03)
Theory\BitErrorProbabilityDoublyFlatRayleigh.m (5433, 2018-07-03)
png (0, 2018-07-03)
png\Figure3.png (208132, 2018-07-03)
png\Figure5.png (138556, 2018-07-03)

# Channel Estimation This repository simulates an FBMC and OFDM transmission over a doubly-selective channel, including doubly-selective MMSE channel estimation in combination with interference cancellation. All figures from R. Nissel et al. [“Doubly-Selective Channel Estimation in FBMC-OQAM and OFDM Systems”](https://publik.tuwien.ac.at/files/publik_270559.pdf), IEEE VTC Fall, 2018, can be reproduced. Supported Waveforms: - OFDM - FBMC, channel estimation: auxiliary symbols - FBMC, channel estimation: data spreading Note that I use a matrix based system model. This makes the derivation of the correlation matrices relatively easy but also requires a large memory. If one wants to simulate over a higher bandwidth, either the system model must be split into smaller chunks, or the matrices must be explicitly expressed by summations. ## Requirements We used Windows 7 (***bit) and Matlab R2013b/2016a, but newer versions (and some older) should also work. ## Basic Properties ### Our doubly-selective channel estimation method performs close to perfect channel knowledge: ### The first iteration step greatly improves the BER, which soon saturates: ## Reproducible Figures All figure from [“Doubly-Selective Channel Estimation in FBMC-OQAM and OFDM Systems”](https://publik.tuwien.ac.at/files/publik_270559.pdf) can be reproduced. The figure numbers are the same as in the paper. * **Figure 1**: Just an illustration. * **Figure 2**: Please run [`DoublySelectiveChannelEstimation.m`](DoublySelectiveChannelEstimation.m). To truly reproduce Figure 2, the lines 42-46 must be uncommented (increases the simulation time). * **Figure 3**: Please run [`DoublySelectiveChannelEstimation.m`](DoublySelectiveChannelEstimation.m). To truly reproduce Figure 3, the lines 42-46 must be uncommented (increases the simulation time). * **Figure 4**: Please run [`DoublySelectiveChannelEstimation.m`](DoublySelectiveChannelEstimation.m). To truly reproduce Figure 4, the lines 42-46 must be uncommented (increases the simulation time). * **Figure 5**: Please run [`DoublySelectiveChannelEstimation.m`](DoublySelectiveChannelEstimation.m). To truly reproduce Figure 5, the lines 42-46 must be uncommented (increases the simulation time). ## Additional Explanations for Channel Estimation in FBMC The Matlab code [`SimpleVersion_DoublyFlat.m`](SimpleVersion_DoublyFlat.m) simulates an FBMC and OFDM transmission over a doubly-flat channel, including channel estimation. In particular, it illustrates the auxiliary symbol method and the data spreading approach, with much less overhead than for the doubly-selective channel estimation method. The script is based on my paper [“On pilot-symbol aided channel estimation in FBMC-OQAM”](https://publik.tuwien.ac.at/files/PubDat_248707.pdf). ## Please Cite Our Paper @inproceedings{Nissel2018VTC, author = {R. Nissel and F. Ademaj and M. Rupp}, booktitle = {IEEE Vehicular Technology Conference (VTC Fall)}, title = {Doubly-Selective Channel Estimation in {FBMC-OQAM} and {OFDM} Systems}, year = {2018}, pages = {1-5}, month = {Aug}, } ## References - R. Nissel, F. Ademaj and M. Rupp, [“Doubly-Selective Channel Estimation in FBMC-OQAM and OFDM Systems”](https://publik.tuwien.ac.at/files/publik_270559.pdf), IEEE Vehicular Technology Conference (VTC Fall), Chicago, August, 2018 - R. Nissel, and M. Rupp, [“On pilot-symbol aided channel estimation in FBMC-OQAM”](https://publik.tuwien.ac.at/files/PubDat_248707.pdf), IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), Shanghai, ***, March 2016. - R. Nissel, M. Rupp, and R. Marsalek, [“FBMC-OQAM in Doubly-Selective Channels: A New Perspective on MMSE Equalization”](https://publik.tuwien.ac.at/files/publik_259771.pdf), IEEE International Workshop on Signal Processing Advances in Wireless Communications (SPAWC), Sapporo, Japan, July 2017. - R. Nissel, S. Schwarz, and M. Rupp, [“Filter bank multicarrier modulation schemes for future mobile communications”](https://publik.tuwien.ac.at/files/publik_260162.pdf), IEEE Journal on Selected Areas in Communications, vol. 35, no. 8, pp. 1768–1782, 2017. - R. Nissel, [“Filter bank multicarrier modulation for future wireless systems”](http://publik.tuwien.ac.at/files/publik_265168.pdf), Dissertation, TU Wien, 2017.

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