TY - GEN
T1 - Optimal stochastic power control with compressive CSI acquisition for Cloud-RAN
AU - Suya,
AU - Shi, Yuanming
AU - Bai, Bo
AU - Chen, Wei
AU - Zhang, Jun
AU - Letaief, Khaled B.
AU - Zhou, Shidong
PY - 2017/4/19
Y1 - 2017/4/19
N2 - This paper considers the channel state information (CSI) acquisition and exploitation problem in cloud radio access networks (Cloud-RAN). A novel CSI acquisition method, called compressive CSI acquisition, is adopted to effectively reduce the CSI signaling overhead by obtaining instantaneous coefficients of only a subset of all the channel links. To deal with the uncertainty in available CSI, we propose a stochastic power control (SPC) framework, which is a highly intractable joint chance constrained program (JCCP). In contrast to conventional works, which can only find sub-optimal solutions, we propose a novel stochastic power control algorithm with optimality guarantee. Simulation results will show that the proposed compressive CSI acquisition method can reduce the overhead significantly. Moreover, the proposed SPC algorithm provides performance close to the full CSI case while only partial CSI is required.
AB - This paper considers the channel state information (CSI) acquisition and exploitation problem in cloud radio access networks (Cloud-RAN). A novel CSI acquisition method, called compressive CSI acquisition, is adopted to effectively reduce the CSI signaling overhead by obtaining instantaneous coefficients of only a subset of all the channel links. To deal with the uncertainty in available CSI, we propose a stochastic power control (SPC) framework, which is a highly intractable joint chance constrained program (JCCP). In contrast to conventional works, which can only find sub-optimal solutions, we propose a novel stochastic power control algorithm with optimality guarantee. Simulation results will show that the proposed compressive CSI acquisition method can reduce the overhead significantly. Moreover, the proposed SPC algorithm provides performance close to the full CSI case while only partial CSI is required.
KW - Cloud-RAN
KW - Compressive CSI acquisition
KW - Stochastic power control
KW - Successive convex approximation
UR - http://www.scopus.com/inward/record.url?scp=85019180401&partnerID=8YFLogxK
U2 - 10.1109/GlobalSIP.2016.7906068
DO - 10.1109/GlobalSIP.2016.7906068
M3 - Conference article published in proceeding or book
AN - SCOPUS:85019180401
T3 - 2016 IEEE Global Conference on Signal and Information Processing, GlobalSIP 2016 - Proceedings
SP - 1383
EP - 1387
BT - 2016 IEEE Global Conference on Signal and Information Processing, GlobalSIP 2016 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2016 IEEE Global Conference on Signal and Information Processing, GlobalSIP 2016
Y2 - 7 December 2016 through 9 December 2016
ER -