[1] Heinrich Hertz Inst Nachrichtentech Berlin GmbH, Berlin, Germany
[2] Heinrich Hertz Inst Nachrichtentech Berlin GmbH, Fraunhofer Inst Telecommun, Berlin, Germany
[3] Heinrich Hertz Inst Nachrichtentech Berlin GmbH, Dept Photon Networks & Syst, Berlin, Germany
[4] Heinrich Hertz Inst Nachrichtentech Berlin GmbH, Dept Photon Networks & Syst, Fraunhofer Inst Telecommun, Berlin, Germany
[5] Heinrich Hertz Inst Nachrichtentech Berlin GmbH, Berlin, Germany