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| Content Provider | ACM Digital Library |
|---|---|
| Author | Wang, Zibin Steinbach, Eckehard Zhou, Liang El essaili, Ali |
| Copyright Year | 2015 |
| Abstract | We study the problem of resource-efficient uplink distribution of user-generated video content over fourth-generation mobile networks. This is challenged by (1) the capacity-limited and time-variant uplink channel, (2) the resource-hungry upstreamed videos and their dynamically changing complexity, and (3) the different playout times of the video consumers. To address these issues, we propose a systematic approach for quality-of-experience (QoE)-based resource optimization and uplink transmission of multiuser generated video content. More specifically, we present an analytical model for distributed scalable video transmission at the mobile producers which considers these constraints. This is complemented by a multiuser cross-layer optimizer in the mobile network which determines the transmission capacity for each mobile terminal under current cell load and radio conditions. Both optimal and low-complexity solutions are presented. Simulation results for LTE uplink transmission show that significant gains in perceived video quality can be achieved by our cross-layer resource optimization scheme. In addition, the distributed optimization at the mobile producers can further improve the user experience across the different types of video consumers. |
| Starting Page | 1 |
| Ending Page | 22 |
| Page Count | 22 |
| File Format | |
| ISSN | 15516857 |
| e-ISSN | 15516865 |
| DOI | 10.1145/2801124 |
| Volume Number | 12 |
| Issue Number | 1 |
| Journal | ACM Transactions on Multimedia Computing, Communications, and Applications (TOMM) |
| Language | English |
| Publisher | Association for Computing Machinery (ACM) |
| Publisher Date | 2015-08-24 |
| Publisher Place | New York |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | LTE uplink Quality of Experience Live and VoD Resource allocation Scalable video transmission |
| Content Type | Text |
| Resource Type | Article |
| Subject | Hardware and Architecture Computer Networks and Communications |
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