Equalisation with adaptive time lag
In an adaptive equaliser, the time lag is an important parameter that significantly influences the performance. Only with the optimum time lag that corresponds to the best minimum-mean-square-error (MMSE) performance, can there be best use of the available resources. Many designs, however, choose the time lag either based on preassumption of the channel or simply based on average experience. The relation between the MMSE performance and the time lag is investigated using a new interpretation of the MMSE equaliser, and then a novel adaptive time lag algorithm is proposed based on gradient search. The proposed algorithm can converge to the optimum time lag in the mean and is verified by the numerical simulations provided.
Funding
This research was sponsored by the UK Engineering and Physical Sciences Research Council under grant GR/S00217/01.
History
School
- Mechanical, Electrical and Manufacturing Engineering
Published in
IEE Proceedings - CommunicationsVolume
152Issue
5Pages
661 - 667Citation
GONG, Y. and COWAN, C.F., 2005. Equalisation with adaptive time lag. IEE Proceedings - Communications, 152 (5), pp. 661-667.Publisher
© IEEEVersion
- AM (Accepted Manuscript)
Publication date
2005Notes
(c) 2005 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works.ISSN
1350-2425Publisher version
Language
- en
