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Resource Allocation for OFDMA Relay Networks With Fairness Constraints

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2 Author(s)
G. Li ; Commun. Technol. Lab., Intel Corp., Hillsboro, OR ; H. Liu

This paper studies the resource allocation for orthogonal frequency-division multiple-access relay network with multiple source nodes, multiple relay nodes, and a single destination node. The optimal source/relay/subcarrier allocation problem with fairness constraint on relay nodes is formulated as a binary integer programming problem. The problem is then tackled using a graph theoretical approach by transforming it into a linear optimal distribution problem in a directed graph. Upper bound of the solution is discussed and simulation results are studied to evaluate the algorithm performance

Published in:

IEEE Journal on Selected Areas in Communications  (Volume:24 ,  Issue: 11 )