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Coordinated Power Allocation for Generalized Multi-Cluster Distributed Antenna Systems
Wei FENG Yanmin WANG Yunzhou LI Xibin XU Jing WANG
IEICE TRANSACTIONS on Communications
Publication Date: 2011/09/01
Online ISSN: 1745-1345
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Wireless Communication Technologies
distributed antenna system (DAS), coordinated power allocation (PA), upper bound (UB), Geometric Programming (GP),
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In this letter, coordinated power allocation (PA) is investigated for the downlink of a generalized multi-cluster distributed antenna system (DAS). Motivated by practical applications, we assume only the global large-scale channel state information is known at the transmitter. First, an upper bound (UB) for the ergodic sum capacity of the system is derived and used as a simplified optimization target. Then, a coordinated PA scheme is proposed based on Geometric Programming (GP), which is demonstrated to be nearly optimal by Monte Carlo simulations.