Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/117346
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Type: Conference paper
Title: User spectral efficiency: combining spectral efficiency with user experience
Author: Nguyen, H.
Northcote, B.
Citation: Proceedings of the 2016 IEEE International Conference on Communications (ICC): Communications for all things, 2016 / pp.1-6
Publisher: IEEE
Issue Date: 2016
Series/Report no.: IEEE International Conference on Communications
ISBN: 9781479966646
ISSN: 1550-3607
1938-1883
Conference Name: IEEE International Conference on Communications (ICC) (23 May 2016 - 27 May 2016 : Kuala Lumpur, Malaysia)
Statement of
Responsibility: 
Hung X. Nguyen, Bruce Northcote
Abstract: Electromagnetic spectrum is a scarce resource. Spectrum licensing is estimated to consume about 20% of cellular operators' capital expenditure (CAPEX). One important measure of spectrum use is “spectral efficiency” (SE), which is the amount of data bandwidth that a specific technology can extract from a certain amount of radio spectrum and is measured in bits per second per Hz (bps/Hz). Using data from 4 different mobile operators, we show that spectral efficiency as the measure of bits per second per Hz correlates poorly with users' performance on cellular networks. Applying spectral efficiency directly in network performance monitoring or in network planning can provide misleading diagnostics and poorly targeted expansion plans. We propose a new spectral efficiency metric that combines the raw bit per second per Hz measurement with user perceived performance. We show that this new metric correlates well with measured user throughput and is superior metric for network planning and performance monitoring in real networks. We present a number of applications of our new metric on network management and capacity planning tasks. Our implementation of this approach has been used in operational networks for over 8 years and has provided sound basis for CAPEX decision making.
Keywords: Quality of experience; capacity planning; spectral efficiency; key performance indicators
Rights: © 2016 IEEE
RMID: 0030054763
DOI: 10.1109/ICC.2016.7511204
Published version: http://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=7502491
Appears in Collections:Electrical and Electronic Engineering publications

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