An energy-efficient FDCT/IDCT configurable IP core for mobile multimedia platforms
| Autor: | Brunno A. Machado, Bruno George de Moraes, Vinicius Livramento, Jose Luis Guntzel |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
Multimedia
business.industry Computer science Process (computing) Context (language use) computer.software_genre Power (physics) Embedded system Datapath Discrete cosine transform business Hardware_REGISTER-TRANSFER-LEVELIMPLEMENTATION Mobile device Throughput (business) computer Efficient energy use |
| Zdroj: | SBCCI |
| DOI: | 10.1145/2020876.2020911 |
| Popis: | The development of mobile multimedia devices follows the platform-based design methodology in which IP cores are the building blocks. In the context of mobile devices there is a concern of battery lifetime which leads to the need of energy-efficient IP cores. This paper presents an energy-efficient FDCT/IDCT configurable IP core. Synthesis for 90 nm resulted in 50 MHz as maximum frequency and 1.66 mW as total power, achieving a throughput of 188.2 Mpixels/s, which is enough to process two HDTV@1080p videos in real time. The IP core architecture is based on Massimino's algorithm, which was chosen for its accuracy and parallelism. The exploration of its parallelism resulted in a fully-combinational 1-D FDCT/IDCT configurable datapath. In addition, the IP core is IEEE-1180 compliant. Comparisons with related work, in terms of energy efficiency (mJ/Mpixel), revealed that our architecture is at least 64% more efficient than other DCT architectures. |
| Databáze: | OpenAIRE |
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