Reflection Reduction on DDR3 High-Speed Bus by Improved PSO
Joint Authors
Li, Bo
Li, Huiyong
Jiang, Hongxu
Duan, Miyi
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-03-18
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Medicine
Information Technology and Computer Science
Abstract EN
The signal integrity of the circuit, as one of the important design issues in high-speed digital system, is usually seriously affected by the signal reflection due to impedance mismatch in the DDR3 bus.
In this paper, a novel optimization method is proposed to optimize impedance mismatch and reduce the signal refection.
Specifically, by applying the via parasitic, an equivalent model of DDR3 high-speed signal transmission, which bases on the match between the on-die-termination (ODT) value of DDR3 and the characteristic impedance of the transmission line, is established.
Additionally, an improved particle swarm optimization algorithm with adaptive perturbation is presented to solve the impedance mismatch problem (IPSO-IMp) based on the above model.
The algorithm dynamically judges particles’ state and introduces perturbation strategy for local aggregation, from which the local optimum is avoided and the ability of optimization-searching is activated.
IPSO-IMp achieves higher accuracy than the standard algorithm, and the speed increases nearly 33% as well.
Finally, the simulation results verify that the solution obviously decreases the signal reflection, with the signal transmission quality increasing by 1.3 dB compared with the existing method.
American Psychological Association (APA)
Li, Huiyong& Jiang, Hongxu& Li, Bo& Duan, Miyi. 2014. Reflection Reduction on DDR3 High-Speed Bus by Improved PSO. The Scientific World Journal،Vol. 2014, no. 2014, pp.1-11.
https://search.emarefa.net/detail/BIM-1048930
Modern Language Association (MLA)
Li, Huiyong…[et al.]. Reflection Reduction on DDR3 High-Speed Bus by Improved PSO. The Scientific World Journal No. 2014 (2014), pp.1-11.
https://search.emarefa.net/detail/BIM-1048930
American Medical Association (AMA)
Li, Huiyong& Jiang, Hongxu& Li, Bo& Duan, Miyi. Reflection Reduction on DDR3 High-Speed Bus by Improved PSO. The Scientific World Journal. 2014. Vol. 2014, no. 2014, pp.1-11.
https://search.emarefa.net/detail/BIM-1048930
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1048930