TY - JOUR
T1 - A New Relation Between Energy Efficiency and Spectral Efficiency in Wireless Communications Systems
AU - Sboui, Lokman
AU - Rezki, Zouheir
AU - Salem, Ahmed Sultan
AU - Alouini, Mohamed-Slim
N1 - KAUST Repository Item: Exported on 2020-10-01
PY - 2019/4/25
Y1 - 2019/4/25
N2 - When designing wireless communication systems (WCS), the spectral efficiency (SE) has been the main design performance metric. Recently, the energy efficiency (EE) is attracting a huge interest due to the massive deployment of power limited WCS such as IoT devices, and stringent environmental concerns. For this reason, many works in the literature focused on optimizing the EE and highlighted the EE-SE relationship as a trade-off (meaning that increasing one decreases the other). In this article, after introducing the EE metric, we highlight a new perspective of the EE-SE relationship based on energy-efficient power control. In particular, we give insights about the EE-based performance of various transmission technologies and its impact on 5G future design. Via numerical results, we show that the corresponding power scheme allows an increase of both the SE and EE with no trade-off. Finally, we present relevant open research problems.
AB - When designing wireless communication systems (WCS), the spectral efficiency (SE) has been the main design performance metric. Recently, the energy efficiency (EE) is attracting a huge interest due to the massive deployment of power limited WCS such as IoT devices, and stringent environmental concerns. For this reason, many works in the literature focused on optimizing the EE and highlighted the EE-SE relationship as a trade-off (meaning that increasing one decreases the other). In this article, after introducing the EE metric, we highlight a new perspective of the EE-SE relationship based on energy-efficient power control. In particular, we give insights about the EE-based performance of various transmission technologies and its impact on 5G future design. Via numerical results, we show that the corresponding power scheme allows an increase of both the SE and EE with no trade-off. Finally, we present relevant open research problems.
UR - http://hdl.handle.net/10754/656302
UR - https://ieeexplore.ieee.org/document/8694789/
UR - http://www.scopus.com/inward/record.url?scp=85065124578&partnerID=8YFLogxK
U2 - 10.1109/MWC.2019.1800161
DO - 10.1109/MWC.2019.1800161
M3 - Article
SN - 1536-1284
VL - 26
SP - 168
EP - 174
JO - IEEE Wireless Communications
JF - IEEE Wireless Communications
IS - 3
ER -
