Energy-aware mobile video transmission utilizing mobility

摘要

Mobile network operators and users are already experiencing the dreaded impact of multimedia content consumption over wireless networks not only in terms of traffic overload that affects system performance (associated also with perceived user experience), but further in terms of the energy consumption drain on both the infrastructure nodes and the terminals?? batteries. Mobile video has become the dominant aggregate traffic contributor in today??s cellular networks. In this work energy-efficient content forwarding strategies are devised for video streaming consumption over cellular networks utilizing mobility information. While intrinsically such services necessitate stringent real-time constraints, communicating fragments of data can deliberately be postponed (always under the real-time constraints as set by the playback time requirement) at future time instances that experience favorable transmit channel link gains. By doing so, many-fold savings in energy consumption can be achieved for both the mobile user terminals and the infrastructure nodes at no cost to the perceivable quality of experience.