Distributed resource allocation for rate-constrained users in multi-cell OFDMA networks

This letter addresses resource allocation in multi-cell OFDMA networks. It describes a heuristic for distributed sum power minimization under target data rate requirements. The proposed method establishes a set of target SINR per user and subcarrier, determined to reach the target data rate of each...

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Bibliographic Details
Published in:IEEE communications letters 2008-04, Vol.12 (4), p.250-252
Main Authors: Pischella, M., Belfiore, J.-C.
Format: Article
Language:English
Subjects:
Applied sciences
Base stations
Divergence
Downlink
Equipments and installations
Exact sciences and technology
Frequency diversity
Heuristic
Information, signal and communications theory
Intelligent networks
Interference channels
Iterative methods
Mobile radiocommunication systems
Multiplexing
Networks
Optimization
Power control
Radio spectrum management
Radiocommunications
Rejection
Resource allocation
Resource management
Signal and communications theory
Signal to noise ratio
Subcarriers
Systems, networks and services of telecommunications
Telecommunications
Telecommunications and information theory
Transmission and modulation (techniques and equipments)
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Summary:This letter addresses resource allocation in multi-cell OFDMA networks. It describes a heuristic for distributed sum power minimization under target data rate requirements. The proposed method establishes a set of target SINR per user and subcarrier, determined to reach the target data rate of each user, while avoiding power divergence situations. Power control can then be performed independently over each subcarrier. Compared to iterative water-filling, this method proves to be very efficient at any load in terms of resource consumption and users' rejection.
ISSN:1089-7798
1558-2558
DOI:10.1109/LCOMM.2008.071972