TY - GEN
T1 - Optimal power control for energy harvesting transmitters in an interference channel
AU - Tutuncuoglu, Kaya
AU - Yener, Aylin
PY - 2011
Y1 - 2011
N2 - In this paper, optimal power control policies for an interference channel with two energy harvesting transmitters and two corresponding receivers are considered. Energy harvesting transmitters have strict power constraints due to the harvesting process as well as battery capacity constraints. The derived optimal power policies maximize the sum-throughput of a deadline constrained system under such energy and data arrival constraints by utilizing the limited available energy and managing the interference in the channel simultaneously. It is shown that an alternating maximization approach that individually optimizes the power policies for each transmitter in a cyclic manner converges to the optimal policy. The single-user subproblems with data constraints are solved using a generalized directional water-filling algorithm. A practical distributed algorithm requiring only local energy harvesting information is presented, and its near-optimal performance is demonstrated through simulations.
AB - In this paper, optimal power control policies for an interference channel with two energy harvesting transmitters and two corresponding receivers are considered. Energy harvesting transmitters have strict power constraints due to the harvesting process as well as battery capacity constraints. The derived optimal power policies maximize the sum-throughput of a deadline constrained system under such energy and data arrival constraints by utilizing the limited available energy and managing the interference in the channel simultaneously. It is shown that an alternating maximization approach that individually optimizes the power policies for each transmitter in a cyclic manner converges to the optimal policy. The single-user subproblems with data constraints are solved using a generalized directional water-filling algorithm. A practical distributed algorithm requiring only local energy harvesting information is presented, and its near-optimal performance is demonstrated through simulations.
UR - http://www.scopus.com/inward/record.url?scp=84861322543&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84861322543&partnerID=8YFLogxK
U2 - 10.1109/ACSSC.2011.6190023
DO - 10.1109/ACSSC.2011.6190023
M3 - Conference contribution
AN - SCOPUS:84861322543
SN - 9781467303231
T3 - Conference Record - Asilomar Conference on Signals, Systems and Computers
SP - 378
EP - 382
BT - Conference Record of the 45th Asilomar Conference on Signals, Systems and Computers, ASILOMAR 2011
T2 - 45th Asilomar Conference on Signals, Systems and Computers, ASILOMAR 2011
Y2 - 6 November 2011 through 9 November 2011
ER -