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Title: Design methods for time-domain equalizers in DMT transceivers
Authors: Behrouz, F.-B. 
Ding, M.
Keywords: Data communications
Discrete multitone
Subscriber loops
Issue Date: Mar-2001
Citation: Behrouz, F.-B., Ding, M. (2001-03). Design methods for time-domain equalizers in DMT transceivers. IEEE Transactions on Communications 49 (3) : 554-562. ScholarBank@NUS Repository.
Abstract: Time-domain equalizers (TEQ) are used in the discrete multitone (DMT) transceivers in order to reduce the duration of the overall response of the transmission system, so that a shorter-length cyclic prefix could be used. The optimum TEQ is the one that results in maximum bit allocation to each block of DMT. However, the optimum design of TEQs turns out to be a very difficult task. In this paper, we give the general guidelines that one should follow in the design of TEQ to achieve a good performance. Based on the suggested guidelines, we first propose an eigenapproach design method which results in TEQs with comparable performance to those of a previously reported method, but at a much lower computational cost. Further study of the proposed guidelines reveals that the choice of target-impulse response in the design of TEQ only weakly depends on the channel response. Noting this, we propose a second design method that is even simpler than our first method, but still results in comparable designs to those of our first method and also those obtained from the much more complex methods of the present literature.
Source Title: IEEE Transactions on Communications
ISSN: 00906778
DOI: 10.1109/26.911462
Appears in Collections:Staff Publications

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