Power Control in Wireless Cellular Networks
Foundations and Trends® in
Networking
Volume 2 Issue 4
DOI: 10.1561/1300000009
Power Control in Wireless Cellular Networks
Mung Chiang
Department of Electrical Engineering, Princeton University, USA, chiangm@princeton.edu
Prashanth Hande
Department of Electrical Engineering, Princeton University, USA
Tian Lan
Department of Electrical Engineering, Princeton University, USA
Chee Wei Tan
Department of Electrical Engineering, Princeton University, USA
SUGGESTED CITATION:
Mung
Chiang
and
Prashanth
Hande
and
Tian
Lan
and
Chee Wei
Tan
(2008)
"Power Control in Wireless Cellular Networks",
Foundations and Trends® in Networking: Vol. 2: No 4, pp 381-533.
http:/dx.doi.org/10.1561/1300000009
Abstract
Transmit power in wireless cellular networks is a key degree of freedom in the management of interference, energy, and connectivity.
Power control in both the uplink and downlink of a cellular network has been extensively studied, especially over the last
15 years, and some of the results have enabled the continuous evolution and significant impact of the digital cellular technology.
This survey provides a comprehensive discussion of the models, algorithms, analysis, and methodologies in this vast and
growing literature. It starts with a taxonomy of the wide range of power control problem formulations, and progresses from
the basic formulation to more sophisticated ones. When transmit power is the only set of optimization variables, algorithms
for fixed SIR are presented first, before turning to their robust versions and joint SIR and power optimization. This is followed
by opportunistic and non-cooperative power control. Then joint control of power together with beamforming pattern, base station
assignment, spectrum allocation, and transmit schedule is surveyed one-by-one.
Throughout the survey, we highlight the use of mathematical language and tools in the study of power control, including
optimization theory, control theory, game theory, and linear algebra. Practical implementations of some of the algorithms
in operational networks are discussed in the concluding section. As illustrated by the open problems presented at the end
of most chapters, in the area of power control in cellular networks, there are still many under-explored directions and unresolved
issues that remain theoretically challenging and practically important.