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Bandwidth Management for SDN-enabled Wireless Networks

Abstract

This paper proposes a dynamic bandwidth management method for SDN-enabled wireless networks, where users join and leave a small cell frequently. The proposed mechanism takes the user group priority into account. A user of a high-priority group is always allocated more bandwidth than a user of a low-priority group. Under this criterion, the proposed mechanism addresses the issue on how to provide dynamic bandwidth management in an SDN-enabled wireless network while reducing control signaling for bandwidth management. Simulation results show that the proposed method reduces 60% of signaling overhead compared with the method in which every occurrence of user join or leave triggers a bandwidth adjustment operation. The experimental results verify the feasibility of the dynamic bandwidth management method and its correctness with respect to the intra-group and inter-group bandwidth management behavior.

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