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ICC
2007
IEEE
14 years 1 months ago
Transmit Optimization for Relay-Based Cellular OFDMA Systems
Abstract—This paper considers a broadband cellular orthogonal frequency-division multiple-access (OFDMA) system with relay nodes operating in decode-and-forward and half-duplex m...
Wooseok Nam, Woohyuk Chang, Sae-Young Chung, Yong ...
GLOBECOM
2009
IEEE
14 years 2 months ago
Downlink Mobile OFDMA Resource Allocation with Minimum User Rate Requests
— The problem of resource allocation (RA) in a downlink OFDMA system with minimum user rate requests is examined under the realistic scenario of partial (imperfect) channel state...
Stelios Stefanatos, Christos Papathanasiou, Nikos ...
INFOCOM
2008
IEEE
14 years 1 months ago
Self-Organizing Dynamic Fractional Frequency Reuse in OFDMA Systems
—We describe an algorithm for sub-carrier and power allocation that achieves out-of-cell interference avoidance through dynamic fractional frequency reuse (FFR) in downlink of ce...
Alexander L. Stolyar, Harish Viswanathan
GLOBECOM
2008
IEEE
14 years 1 months ago
A Low-Signalling Scheme for Distributed Resource Allocation in Multi-Cellular OFDMA Systems
—This paper considers distributed protocol design for joint sub-carrier, transmission scheduling and power management in uplink/downlink multi-cellular OFDMA wireless networks. T...
Pablo Soldati, Mikael Johansson
GLOBECOM
2007
IEEE
13 years 9 months ago
Optimal Downlink OFDMA Subcarrier, Rate, and Power Allocation with Linear Complexity to Maximize Ergodic Weighted-Sum Rates
Abstract— In this paper, we propose a resource allocation algorithm for ergodic weighted-sum rate maximization in downlink OFDMA systems. In contrast to most previous research tha...
Ian C. Wong, Brian L. Evans