CQS3:a Server Selection Scheme for Mobile Multimedia Delivery
With the popularization of mobile Internet,more and more users get access to Internet applications through mobile terminal equipment.Although traditional content delivery network can improve the mobile service quality to a certain extent,it still can′t adapt to the mobility of users and meet the demand of higher experience of service.To this end,this paper puts forward a Mobility-Aware Multimedia System(MAMS),and on this basis further proposes a Client-Driven QoS-Oriented Server Selection Scheme(CQS3),in which mobile terminals measure service quality of mobile multimedia periodically,and take both the loads and comprehensive service quality grades of edge servers into consideration when selecting the best edge servers.Simulation results show that compared with closest surrogate scheme,this scheme could ensure a similar delay performance while significantly improves PSNR,and it is also well adapt to user mobility.