Statistical analysis of CQI reporting and MIMO utilization for downlink scheduling in live LTE mobile network

Author:

Tomić Igor,Lukić Đorđe,Davidović Milutin,Drajić DejanORCID,Ivaniš PredragORCID

Abstract

This paper considers a Multiple Input Multiple Output (MIMO) downlink scheduling procedure in Long Term Evolution (LTE) cellular networks. In particular, the relationship between Channel Quality Indicator (CQI) and MIMO utilization in LTE Frequency Division Duplex (FDD) systems was examined using the statistical analysis. Data was collected from a mature mobile network deployed in typical frequency bands for LTE FDD used in Europe - Band 3, Band 7 and Band 20. Obtained numerical results showed a significant correlation between reported CQI value and MIMO utilization.

Publisher

Centre for Evaluation in Education and Science (CEON/CEES)

Subject

Computer Networks and Communications,Media Technology,Radiation,Signal Processing,Software

Reference10 articles.

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3. M. Davidović, I. Tomić, D. Drajić, and Z. Čiča, "On the Impact of NB-IoT on LTE MBB Downlink Performance," TELFOR Journal, Vol.11, No.1, pp. 20-24, Belgrade 2019;

4. M.Davidović, S.Bjekovic and I.Tomic, "On the impact of network load on LTE network downlink performance", 59 th International Conference IcETRAN 2015, Srebrno Jezero 2015;

5. I.A.Tomić, M.S.Davidović and S.M.Bjeković, "On the downlink capacity of LTE cell," 23 rd Telecommunications Forum TELFOR 2015, pp. 181-185, Belgrade 2015;

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