NDLI: Effects of SINR estimation errors on the DL cell throughput of an LTE system in different environments

Content Provider	IEEE Xplore Digital Library
Author	Ostermayer, G. Neumeier, R. Eder, S.
Copyright Year	2013
Description	Author affiliation: RG Mobile Radio Networks, UAS Upper Austria, Hagenberg, Austria (Neumeier, R.) \|\| Network Optimization & Simulation, Siemens CVC GmbH, Vienna, Austria (Eder, S.) \|\| Dept. Mobile Comput., UAS Upper Austria, Hagenberg, Austria (Ostermayer, G.)
Abstract	In this paper we analyze the influence of errors in SINR estimation on the system level performance of an LTE system. Additionally we investigate the effect of the selection of the SINR/CQI mapping curve on the cell throughput and error resistance. We focus on downlink scenarios in a macro-cell (57 cells deployed in a hexagonal grid) and a micro-cell environment (Manhattan grid deployment with 72 cells). Up to 20 users are simultaneously active in the observed cell. For that we use a Best CQI scheduling algorithm. Our investigations are done using a simulation environment based on two tools with different modeling accuracy. With that approach the simulation runtime can be kept short enough in order to produce results efficiently. Simulations have shown that the LTE system is very resistant to SINR estimation errors, but it does not always achieve the best cell throughput performance when operating with the parameters for the SINR-to-modulation-and-coding curves recommended in the LTE-standard documents [1]. However, by increasing cell throughput performance, the resistance to SINR estimation errors decreases.
Sponsorship	IEEE Malaysia ComSoc/VTS Joint Chapt.
Starting Page	196
Ending Page	201
File Size	370932
Page Count	6
File Format	PDF
ISBN	9781479915323
DOI	10.1109/MICC.2013.6805824
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-11-26
Publisher Place	Malaysia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Estimation error SINR estimation error Cell throughput Channel estimation Interference Receivers Throughput Mobile communication CQI LTE Performance Signal to noise ratio
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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