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

DOI

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.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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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  - Proceedings of the 2015 2nd International Forum on Electrical Engineering and Automation (IFEEA 2015)
PB  - Atlantis Press
SP  - 41
EP  - 48
SN  - 2352-5401
UR  - https://doi.org/10.2991/ifeea-15.2016.9
DO  - 10.2991/ifeea-15.2016.9
ID  - Chen2016/01
ER  -