| Session: | Poster Session |
| Location: | Poster Area |
| Session Time: | Tuesday, June 26, 15:40 - 17:00 |
| Presentation Time: | Tuesday, June 26, 15:40 - 16:40 |
| Presentation: |
Poster
|
| Paper Title: |
JOINT ENERGY OPTIMIZATION OF VIDEO ENCODING AND TRANSMISSION |
| Authors: |
Ziyu Ye; University of California, San Diego, China | | |
| | Rana Hegazy; University of California, San Diego, Egypt | | |
| | Wei Zhou; Northwestern Polytechnical University, China | | |
| | Pamela Cosman; University of California, San Diego, United States | | |
| | Larry Milstein; University of California, San Diego, United States | | |
| Abstract: |
Disposable wireless video sensors have many potential applications but are subject to stringent energy constraints. We studied the minimization of end-to-end distortion under an total energy constraint, by means of optimizing FEC code rate, number of source bits, and energy allocation between video encoding and wireless transmission. A two-step approach is employed. First, the FEC rate is optimized by exhaustive search. Then a binary-search-based algorithm is proposed to optimize the energy allocation and number of source bits. Experiments show that the algorithm achieves a PSNR gain up to 1dB over some reasonable baselines. A simpler suboptimal algorithm is also tested and exhibits similar performance. |