Edited by Ömer Bulakçı, Nokia, Germany | Xi Li, NEC Laboratories Europe, Germany | Marco Gramaglia, Universidad Carlos III de Madrid, Spain | Anastasius Gavras, Eurescom GmbH, Germany | Mikko Uusitalo, Nokia Bell Labs, Finland | Patrik Rugeland, Ericsson AB, Sweden | Mauro Boldi, TIM, Italy