An Interest Control Method in SVC-based Adaptive Streaming over Named Data Networking

In adaptive streaming, consumers set video segment quality levels based on the estimated throughput. However, in named data networking (NDN), the consumer 's throughput estimation is not always accurate due to cache segments. As a result, in situations where bottlenecks exist between the consumer and the router, requested -higher quality segments arrive at the consumer after their designated playback time, which means the downloaded data cannot be used for playback. In this paper, we propose an interest packet control method to reduce unused data packets in scalable video coding (SVC)-based adaptive streaming in NDN. In our proposed method, when receiving an interest packet, the router determines if the requested data packet can be expected to arrive at the consumer in time for playback. If the router determines that the data requested will not arrive in time, it discards the interest packet. Through computer simulation-based performance evaluations, we show that our proposed method reduces the transmission of unused data packets.