NDLI: Stochastic geometry analysis of downlink energy efficiency for a relay deployment scheme in relay-assisted cellular networks

Content Provider	Springer Nature Link
Author	Chen, Hongbin Chen, Wangfeng Zhao, Feng Fan, Lisheng Zhang, Han
Copyright Year	2015
Abstract	Energy efficiency (EE) of cellular networks has received considerable attention recently. However, EE of relay-assisted cellular networks has not been thoroughly addressed, especially the tradeoff between EE and spectral efficiency (SE). In this paper, considering downlink transmission in a single cell of a relay-assisted cellular network with symmetric relay deployment, and modeling the locations of mobile users as a spatial Poisson point process, a simple geometric model is built to analyze the EE. A metric defined as the ratio of average area throughput to average area power consumption is used to measure the average EE and its analytical expression is derived. The tradeoff between the average EE and the average SE is formulated as an optimization problem to which the closed-form solution is difficult to obtain. Through numerical simulations, the impact of the number of relay stations (RSs) and the location parameter of RSs on the average EE are evaluated. The results show that in some cases the average EE is a quasi-concave function of the number of RSs or the location parameter of RSs.
Starting Page	263
Ending Page	273
Page Count	11
File Format	PDF
ISSN	10184864
Journal	Telecommunication Systems
Volume Number	63
Issue Number	2
e-ISSN	15729451
Language	English
Publisher	Springer US
Publisher Date	2015-11-24
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Relay-assisted cellular networks Spectral efficiency Energy efficiency Poisson point process IT in Business Computer Communication Networks Artificial Intelligence (incl. Robotics) Probability Theory and Stochastic Processes
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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