CROWDAnSDNApproachfor创新.PDFVIP

CROWD: An SDN Approach for DenseNets ¨ Hassan Ali-Ahmad , Claudio Cicconetti , Antonio de la Oliva , Martin Draxler , Rohit Gupta , Vincenzo Mancuso , Laurent Roullet , Vincenzo Sciancalepore Orange, France, Intecs, Italy, University Carlos III of Madrid, Spain, University of Paderborn, Germany, Signalion, German, Institute IMDEA Networks, Spain, Alcatel-Lucent Bell Labs, France corresponding author e-mail: claudio.cicconetti@intecs.it CROWD project: http://www.ict-crowd.eu/, @FP7CROWD Abstract—Traffic demands in mobile networks are expected to such densification cannot be done as a mere rescaling of grow substantially in the next years, both in terms of total traffic existing protocols/networks because of the following primary volume and of bit-rate required by individual users. It is generally reasons: agreed that the only possible solution to overcome the current limitations is to deploy very dense and heterogeneous wireless 1) Backhaul networks cannot be easily scaled down, since networks, which we call DenseNets . However, simply scaling the installation of new cabled infrastructure requires down existing networks by orders of magnitude, as required to more substantial investments than the deployment of fulfill traffic forecasts, is not possible because of the following wireless access points, especially indoor [6]. constraints: i) the