Name
Abstract | ||
|---|---|---|
In many DSP applications (image and voice processing, baseband symbol decoding in high quality communication channels) several dBs of SNR loss can be tolerated without noticeable impact on system level performance. For power optimization in such applications, voltage overscaling can be used to operate the arithmetic circuitry slower than the critical circuit path delay while incurring tolerable SNR loss due to the resulting periodic errors in computation. In this paper, the use of checksum codes along with low precision shadow latches for compensating errors induced by voltage overscaling in digital filters is investigated. A PID controller is used for voltage overscaling while keeping the error rate in the system within acceptable range. It is shown that significant power savings can be achieved by the proposed technique. |
Year | DOI | Venue |
|---|---|---|
2008 | 10.1109/IOLTS.2008.50 | IOLTS |
Keywords | Field | DocType |
arithmetic circuitry,snr loss,dsp application,acceptable range,low power digital-filters,significant power saving,pid controller,error control,system level performance,voltage overscaling,power optimization,guided probabilistic checksums,tolerable snr loss,adaptive control,testing,digital filter,probability,adders,computer languages,encoding,arithmetic,decoding,image processing,minimization,signal to noise ratio,digital circuits,system performance,mobile communication,communication channels,registers,error rate,noise,time frequency analysis,signal processing,circuits,limiting,accuracy,algorithm design and analysis,baseband,digital signal processing,redundancy,fault tolerance,low pass filters,mathematical model,radiation detectors,checksums,low power electronics,error correction,gain,wireless communication,quantization,digital filters,voltage,optimization,computational modeling,process control,reliability engineering,demodulation,computer architecture,distributed databases,multiplexing | Signal processing,Checksum,Digital signal processing,Baseband,Power optimization,Computer science,Signal-to-noise ratio,Electronic engineering,Error detection and correction,Real-time computing,Low-power electronics | Conference |
ISSN | Citations | PageRank |
1942-9398 | 1 | 0.40 |
References | Authors | |
14 | 2 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Muhammad Mudassar Nisar | 1 | 17 | 2.58 |
| Abhijit Chatterjee | 2 | 1949 | 269.99 |