NDLI: Performance evaluation of LTE-Advanced downlink adopting higher order modulation in small cells

Content Provider	IEEE Xplore Digital Library
Author	Ohseki, T. Yamamoto, T. Suegara, Y.
Copyright Year	2015
Description	Author affiliation: KDDI R&D Labs., Inc., Fujimino, Japan (Ohseki, T.; Yamamoto, T.; Suegara, Y.)
Abstract	In 3GPP Release 12, 256QAM (Quadrature amplitude modulation) is expected to be adopted in downlinks of the LTE-Advanced standard as a new modulation order for the purpose of further enhancement in frequency efficiency. However, if a UE (user equipment) is configured to be able to select 256QAM in downlink transmission, the UE cannot select several MCSs (modulation and coding schemes), which was possible in the previous standard. This point is one of the performance deterioration factors associated with 256QAM. Evaluating and clarifying the impact which this deterioration factor has on system performance is of commercial significance because it leads to the development of an effective application method for 256QAM, which will be required in the deployment phase after standardization completion. Therefore, this paper presents some actual methods by which 256QAM is configured to UEs in LTE-Advanced heterogeneous networks, and evaluates their performance by computer simulation, so as to clarify the above-mentioned impact. The results of the simulation make it clear that it is desirable to configure UEs in small cells so that 256QAM can always be selected.
Starting Page	120
Ending Page	122
File Size	125130
Page Count	3
File Format	PDF
ISBN	9781479955077
DOI	10.1109/RWS.2015.7129725
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-01-25
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Throughput Modulation Long Term Evolution Downlink Signal to noise ratio Interference Indexes dual connectivity LTE-Advanced 256QAM heterogeneous networks small cell
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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