영문내용
(English Abstract) |
Bandwidth hungry video streaming has been a challenge in wireless networks. The proliferation of high-end user equipment (UE) have enabled the user to demand high quality of videos through wireless communication. The fifth generation of the cellular system (5G) has already been deployed and researchers are working on the sixth generation of the wireless system (6G). However, bandwidth improvement in the network system alone may not be able to cope with the users' demand-base for the higher quality of the video. Therefore, application-specific adaptation is also important. In this paper, we proposed proactively caching H.264/SVC encoded layered video in the aerial vehicle and delivering it to the requesting users. In the proposed mechanism, layers of the video, potentially to be requested by the users, are proactively cache in Unmanned Air Vehicle Small-cell Base Station (UAV-SBS). UAV-SBS delivers a layer of the segment to the user on request. The proposed optimization problem is combinatorial in nature and is NP-hard. We propose a heuristic algorithm to solve the problem. Our performance evaluation reveals the significance of the proposed mechanism. |
