Abstract
We propose an optimal radio resource allocation (RRA) scheme for scalable H.264/SVC multi-user video transmission over downlink orthogonal frequency division multiple Access (OFDMA)-based cognitive radio (CR) networks. Our framework adopts a new probabilistic approach to mitigate the total imposed interference by cognitive users on the licensed spectrum. We consider two fundamental network service objectives, i.e., the number of satisfied users and the video quality. We devise the 3-dimensional scalable quality of the H.264/SVC video transmission for an OFDMA-based CR network and develop efficient suboptimal algorithms to solve the probabilistic constrained mixed discrete-continuous non-linear programming (MDCNLP) problem. Simulation results indicate that the proposed quality-aware scheme can achieve up to 1.3 dB increase in the average peak signal-to-noise ratio (PSNR) per user over the conventional non-quality-aware RRA algorithms.
| Original language | English |
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| Title of host publication | IEEE International Conference on Communications |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Pages | 7564-7569 |
| Number of pages | 6 |
| Volume | 2015-September |
| ISBN (Print) | 9781467364324 |
| DOIs | |
| Publication status | Published - 9 Sept 2015 |
| Event | IEEE International Conference on Communications, ICC 2015 - London, United Kingdom Duration: 8 Jun 2015 → 12 Jun 2015 |
Conference
| Conference | IEEE International Conference on Communications, ICC 2015 |
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| Country/Territory | United Kingdom |
| City | London |
| Period | 8/06/2015 → 12/06/2015 |
Keywords
- Cognitive radio
- cross-layer design
- H.264/SVC
- imperfect CSI
- MQAM/OFDM
- resource allocation