@InProceedings{8081502,
  author = {M. A. Sedaghat and B. Gade and R. R. Müller and G. Fischer},
  booktitle = {2017 25th European Signal Processing Conference (EUSIPCO)},
  title = {A novel hybrid analog-digital transmitter for multi-antenna base stations},
  year = {2017},
  pages = {1714-1718},
  abstract = {A new hybrid Analog-Digital (hybrid A-D) precoder is proposed for multi-antenna base stations in massive Multiple-Input Multiple-Output (MIMO) which allows a trade-off between the number of required RF-chains and the update rate of the analog part. It is shown that the number of RF-chains can be reduced even below the number of eigenmodes of the channel, thereby closing the gap between the standard hybrid A-D and the single-RF MIMO. This is achieved by dividing the input data streams into blocks and jointly optimizing the digital and the analog precoder parts for each block. The analog part of the precoder needs to be updated once per block and remains static over each block interval. Out of band radiation due to switching is resolved by inserting a short guard interval between blocks. It is shown the number of RF-chains can be any arbitrary positive integer to obtain zero distortion at the user terminals if the update rate is high enough. The proposed precoder offers a significant performance gain at the expenses of data dependent precoding and higher update rates of the analog part.},
  keywords = {antenna arrays;MIMO communication;optimisation;precoding;radio transmitters;novel hybrid analog-digital transmitter;multiantenna base stations;block interval;data dependent precoding;higher update rates;analog precoder;massive Multiple-Input Multiple-Output system;MIMO system;MIMO;Base stations;Distortion;Precoding;Radio frequency;Antennas;Baseband},
  doi = {10.23919/EUSIPCO.2017.8081502},
  issn = {2076-1465},
  month = {Aug},
  url = {https://www.eurasip.org/proceedings/eusipco/eusipco2017/papers/1570345863.pdf},
}

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R.","Fischer, G."],"bibdata":{"bibtype":"inproceedings","type":"inproceedings","author":[{"firstnames":["M.","A."],"propositions":[],"lastnames":["Sedaghat"],"suffixes":[]},{"firstnames":["B."],"propositions":[],"lastnames":["Gade"],"suffixes":[]},{"firstnames":["R.","R."],"propositions":[],"lastnames":["Müller"],"suffixes":[]},{"firstnames":["G."],"propositions":[],"lastnames":["Fischer"],"suffixes":[]}],"booktitle":"2017 25th European Signal Processing Conference (EUSIPCO)","title":"A novel hybrid analog-digital transmitter for multi-antenna base stations","year":"2017","pages":"1714-1718","abstract":"A new hybrid Analog-Digital (hybrid A-D) precoder is proposed for multi-antenna base stations in massive Multiple-Input Multiple-Output (MIMO) which allows a trade-off between the number of required RF-chains and the update rate of the analog part. It is shown that the number of RF-chains can be reduced even below the number of eigenmodes of the channel, thereby closing the gap between the standard hybrid A-D and the single-RF MIMO. This is achieved by dividing the input data streams into blocks and jointly optimizing the digital and the analog precoder parts for each block. The analog part of the precoder needs to be updated once per block and remains static over each block interval. Out of band radiation due to switching is resolved by inserting a short guard interval between blocks. It is shown the number of RF-chains can be any arbitrary positive integer to obtain zero distortion at the user terminals if the update rate is high enough. 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Fischer},\n booktitle = {2017 25th European Signal Processing Conference (EUSIPCO)},\n title = {A novel hybrid analog-digital transmitter for multi-antenna base stations},\n year = {2017},\n pages = {1714-1718},\n abstract = {A new hybrid Analog-Digital (hybrid A-D) precoder is proposed for multi-antenna base stations in massive Multiple-Input Multiple-Output (MIMO) which allows a trade-off between the number of required RF-chains and the update rate of the analog part. It is shown that the number of RF-chains can be reduced even below the number of eigenmodes of the channel, thereby closing the gap between the standard hybrid A-D and the single-RF MIMO. This is achieved by dividing the input data streams into blocks and jointly optimizing the digital and the analog precoder parts for each block. The analog part of the precoder needs to be updated once per block and remains static over each block interval. Out of band radiation due to switching is resolved by inserting a short guard interval between blocks. It is shown the number of RF-chains can be any arbitrary positive integer to obtain zero distortion at the user terminals if the update rate is high enough. The proposed precoder offers a significant performance gain at the expenses of data dependent precoding and higher update rates of the analog part.},\n keywords = {antenna arrays;MIMO communication;optimisation;precoding;radio transmitters;novel hybrid analog-digital transmitter;multiantenna base stations;block interval;data dependent precoding;higher update rates;analog precoder;massive Multiple-Input Multiple-Output system;MIMO system;MIMO;Base stations;Distortion;Precoding;Radio frequency;Antennas;Baseband},\n doi = {10.23919/EUSIPCO.2017.8081502},\n issn = {2076-1465},\n month = {Aug},\n url = {https://www.eurasip.org/proceedings/eusipco/eusipco2017/papers/1570345863.pdf},\n}\n\n","author_short":["Sedaghat, M. 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