Self-Organizing Fractional Power Control for Interference Coordination in OFDMA Networks

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Executive Summary

This paper shows a Self-Organizing Networks (SON) algorithm for interference coordination in downlink Orthogonal Frequency-Division Multiple Access (OFDMA) networks. A distributed algorithm is introduced with a proof of convergence for a static user population. The algorithm uses closed-form formulas for the transmit powers update, and is therefore computationally light. The proposed algorithm is applied to a 39 cells dynamic network simulator with an File Transfer Protocol (FTP) service, showing significant performance gains over a Reuse 1. The Quality of Service (QoS) of cell-edge users improves without degrading the QoS of other users.

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