TY - GEN
T1 - Fast trade-off evaluation for digital signal processing systems during wordlength optimization
AU - Zhang, Linsheng
AU - Zhang, Yan
AU - Zhou, Wenbiao
PY - 2009
Y1 - 2009
N2 - This paper presents a novel precision analysis approach, which optimizes the fractional wordlengths of signals in digital signal processing systems. Quantization-Operation-Error model is proposed to formulate the quantization error bound propagations through modules. Based on that, explicit relationship between output accuracy and hardware cost is built up, and a greedy search algorithm is proposed to find the minimum implementation cost while meeting output error constraint. Moreover, the greedy search steps can form a near pareto-optimal front, which can be used for a fast trade-off evaluation between output accuracy and implementation cost, such as area, power and latency. Experimental results and comparisons with existing state-of-the-art methods demonstrate the efficiency of proposed approach.
AB - This paper presents a novel precision analysis approach, which optimizes the fractional wordlengths of signals in digital signal processing systems. Quantization-Operation-Error model is proposed to formulate the quantization error bound propagations through modules. Based on that, explicit relationship between output accuracy and hardware cost is built up, and a greedy search algorithm is proposed to find the minimum implementation cost while meeting output error constraint. Moreover, the greedy search steps can form a near pareto-optimal front, which can be used for a fast trade-off evaluation between output accuracy and implementation cost, such as area, power and latency. Experimental results and comparisons with existing state-of-the-art methods demonstrate the efficiency of proposed approach.
KW - High level synthesis
KW - Pareto-optimal front
KW - Precision analysis
KW - Quantization-Operation-Error
KW - Wordlength optimization
UR - https://www.scopus.com/pages/publications/76349115342
U2 - 10.1145/1687399.1687535
DO - 10.1145/1687399.1687535
M3 - 会议稿件
AN - SCOPUS:76349115342
SN - 9781605588001
T3 - IEEE/ACM International Conference on Computer-Aided Design, Digest of Technical Papers, ICCAD
SP - 731
EP - 738
BT - Proceedings of the 2009 IEEE/ACM International Conference on Computer-Aided Design - Digest of Technical Papers, ICCAD 2009
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2009 IEEE/ACM International Conference on Computer-Aided Design, ICCAD 2009
Y2 - 2 November 2009 through 5 November 2009
ER -