ISBN: 978-981-11-0008-6 DOI: 10.18178/wcse.2016.06.067
A Noise Predictive Maximum Likelihood Equalization and Its Application in High Speed Serial Link Systems
Abstract— This paper presents noise predictive maximum likelihood (NPML) detection for high-speed
electrical backplane channels. Different from the partial response maximum likelihood (PRML) whose
optimum coefficients are obtained from optimal decision feedback equalization (DFE), NPML achieves its
coefficients by a noise prediction method which can be further incorporated with the computation of branch
metrics in Viterbi algorithm, resulting in the removing of extra DFE and the simplification of hardware
realization. The simulation results show that NPML detection can obtain better detection gain over
conventional DFE when compared with PRML detection.
Index Terms— backplane; noise predictive; decision feedback equalization
Yinhang Zhang, Qingsheng Hu, Jun Feng
Institute of RF- & OE-ICs Southeast University, CHINA
Cite: Yinhang Zhang, Qingsheng Hu, Jun Feng, "A Noise Predictive Maximum Likelihood Equalization and Its Application in High Speed Serial Link Systems," Proceedings of 2016 6th International Workshop on Computer Science and Engineering, pp. 411-414, Tokyo, 17-19 June, 2016.