Proceedings of the 2015 2nd International Forum on Electrical Engineering and Automation (IFEEA 2015)

Influence of Modulation Rate on Energy Efficiency for Relay-aided Transmission: Amplify-and-forward Protocol

Authors
Fangfang Chen, Tao Wang, Xuping Zhai, YanZan Sun
Corresponding Author
Fangfang Chen
Available Online January 2016.
DOI
https://doi.org/10.2991/ifeea-15.2016.9How to use a DOI?
Keywords
Energy efficiency, modulation rate, quasiconcavity, Amplify-and-forward relay
Abstract
This paper describes a general relay system on the condition of a given bit-error-rate(BER). The message bits are transmitted with the assistance of a relay node using one-way amplify-and-forward(AF) relaying protocols, and the effect of modulation rate on energy efficiency (EE) is studied. First, we calculate the transmission power consumption, then the total power consumption can be obtained when circuit power consumption is taken into account. Finally, the expression of EE is derived. The theoretical analysis shows that the energy efficiency is the quasiconcave function of the modulation rate. Through the simulation results we know that when the modulation rate increases, the energy efficiency first increases and then decreases.
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This is an open access article distributed under the CC BY-NC license.

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Proceedings
2015 2nd International Forum on Electrical Engineering and Automation (IFEEA 2015)
Part of series
Advances in Engineering Research
Publication Date
January 2016
ISBN
978-94-6252-153-7
ISSN
2352-5401
DOI
https://doi.org/10.2991/ifeea-15.2016.9How to use a DOI?
Open Access
This is an open access article distributed under the CC BY-NC license.

Cite this article

TY  - CONF
AU  - Fangfang Chen
AU  - Tao Wang
AU  - Xuping Zhai
AU  - YanZan Sun
PY  - 2016/01
DA  - 2016/01
TI  - Influence of Modulation Rate on Energy Efficiency for Relay-aided Transmission: Amplify-and-forward Protocol
BT  - 2015 2nd International Forum on Electrical Engineering and Automation (IFEEA 2015)
PB  - Atlantis Press
SN  - 2352-5401
UR  - https://doi.org/10.2991/ifeea-15.2016.9
DO  - https://doi.org/10.2991/ifeea-15.2016.9
ID  - Chen2016/01
ER  -