Open AccessEnergy‐efficiency region for multiple access channels
Author(s) -
Yu Guanding,
Jiang Yuhuan
Publication year - 2014
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
ISSN - 1350-911X
DOI - 10.1049/el.2013.3798
Subject(s) - constraint (computer aided design) , efficient energy use , spectral efficiency , gaussian , energy (signal processing) , pareto principle , computer science , mathematical optimization , topology (electrical circuits) , physics , mathematics , computer network , combinatorics , statistics , engineering , channel (broadcasting) , electrical engineering , geometry , quantum mechanics
To investigate the trade‐off between energy efficiency (EE) and spectral efficiency (SE) for Gaussian multiple access channels (MACs), a novel concept of the EE region is developed. The EE region for the time division multiple access system is also derived and compared. The SE–EE trade‐off order is introduced to explicitly describe how fast the EE decays with SE in the high SE region. For a symmetric MAC, a constraint on SE–EE trade‐off orders is derived and the Pareto optimum can be achieved by the corner points on the EE region.