After about a decade of intense research, spurred by both economic and operational considerations, and by environmental concerns, energy efficiency has now become a key …
Non-orthogonal multiple access (NOMA) is a promising technique for the fifth generation mobile communication due to its high spectral efficiency. By applying superposition coding …
This monograph presents a unified framework for energy efficiency maximization in wireless networks via fractional programming theory. The definition of energy efficiency is introduced …
X Kang, R Zhang, M Motani - IEEE Journal on Selected areas …, 2012 - ieeexplore.ieee.org
This paper investigates price-based resource allocation strategies for two-tier femtocell networks, in which a central macrocell is underlaid with distributed femtocells, all operating …
R Xie, FR Yu, H Ji, Y Li - IEEE Transactions on Wireless …, 2012 - ieeexplore.ieee.org
Both cognitive radio and femtocell have been considered as promising techniques in wireless networks. However, most of previous works are focused on spectrum sharing and …
A major challenge in the operation of wireless communications systems is the efficient use of radio resources. One important component of radio resource management is power control …
M Chiang, CW Tan, DP Palomar… - IEEE transactions on …, 2007 - ieeexplore.ieee.org
In wireless cellular or ad hoc networks where Quality of Service (QoS) is interference-limited, a variety of power control problems can be formulated as nonlinear optimization with a …