METHOD AND APPARATUS FOR ENERGY EFFICIENT MULTICAST WITH SCALABLE VIDEO CODING BASED SELECTIVE LAYER FORWARDING

摘要

Disclosed are a method and an apparatus for energy-efficient SVC-based data communications for a video service differentiated by distances. According to an embodiment of the present invention, a method for SVC-based data communications comprises the steps of transmitting an SVC type of video layer from a base station to a plurality of terminals; and transmitting, from the base station to the terminals, a reception acknowledgment packet for checking whether the video layer is received. According to another embodiment of the present invention, a method for SVC-based data communications comprises the steps of receiving, from a base station, an SVC type of a video layer, and a reception acknowledgment packet for checking whether the SVC type of the video layer is received; determining whether a video layer corresponding to the reception acknowledgment packet is received when the reception acknowledgment packet is received; and transmitting, to another terminal, an NAC packet that the video layer corresponding to the reception acknowledgment packet has not been received when the video layer is not received.