@inproceedings{1079faa6e5f149d9b4eaa046682051ac,
title = "Correlation-based adaptive pilot pattern in control/data separation architecture",
abstract = "Most of the wireless systems such as the long term evolution (LTE) adopt a pilot symbol-aided channel estimation approach for data detection purposes. In this technique, some of the transmission resources are allocated to common pilot signals which constitute a significant overhead in current standards. This can be traced to the worst-case design approach adopted in these systems where the pilot spacing is chosen based on extreme condition assumptions. This suggests extending the set of the parameters that can be adaptively adjusted to include the pilot density. In this paper, we propose an adaptive pilot pattern scheme that depends on estimating the channel correlation. A new system architecture with a logical separation between control and data planes is considered and orthogonal frequency division multiplexing (OFDM) is chosen as the access technique. Simulation results show that the proposed scheme can provide a significant saving of the LTE pilot overhead with a marginal performance penalty.",
keywords = "Base station, LTE, OFDM, channel estimation, control data separation architecture, correlation, physical layer, pilot, signalling overhead",
author = "Abdelrahim Mohamed and Oluwakayode Onireti and Muhammad Imran and Ali Imrany and Rahim Tafazolli",
note = "Publisher Copyright: {\textcopyright} 2015 IEEE.; IEEE International Conference on Communications, ICC 2015 ; Conference date: 08-06-2015 Through 12-06-2015",
year = "2015",
month = sep,
day = "9",
doi = "10.1109/ICC.2015.7248657",
language = "English",
series = "IEEE International Conference on Communications",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "2233--2238",
booktitle = "2015 IEEE International Conference on Communications, ICC 2015",
address = "United States",
}