RLS-based initialization for per-tone equalizers in DMT receivers
نویسندگان
چکیده
منابع مشابه
Rls-based Initialization for per Tone Equalizers in Dmt-receivers Rls-based Initialization for per Tone Equalizers in Dmt-receivers
Per tone equalization has been proposed in 6] 7] as an alternative to time domain equalization for DMT-based systems. In this paper, an iterative initialization scheme based on so-called RLS with inverse updating is presented for these equalizers. Simulation results show convergence with an acceptably small number of training symbols. Complexity calculations are made for per tone equalization a...
متن کاملSplit SR-RLS for the Joint Initialization of the Per-Tone Equalizers and Per-Tone Echo Cancelers in DMT-Based Receivers
In asymmetric digital subscriber lines (ADSL), the available bandwidth is divided in subcarriers or tones which are assigned to the upstream and/or downstream transmission direction. To allow efficient bidirectional communication over one twisted pair, echo cancellation is required to separate upstream and downstream channels. In addition, intersymbol interference and intercarrier interference ...
متن کاملOn the relation between time-domain equalizers and per-tone equalizers for DMT-based systems
We reconsider MMSE-based time-domain equalizer (TEQ), bitrate maximizing TEQ and per-tone equalizer design for DMT transmission. It is shown that they can all be formulated either as a constrained linear or a separable nonlinear least-squares problem. These least-squares formulations are then turned into generalized eigenvalue problems that allow to establish a remarkably close relationship bet...
متن کاملPer tone equalization for DMT-based systems
An alternative receiver structure is presented for discrete multitone-based systems. The usual structure consisting of a (real) time-domain equalizer in combination with a (complex) 1-tap frequency-domain equalizer (FEQ) per tone, is modified into a structure with a (complex) multitap FEQ per tone. By solving a minimum mean-square-error problem, the signal-to-noise ratio is maximized for each i...
متن کاملDmt-based Systems with per Tone Equalization 1 Dmt-based Systems with per Tone Equalization
An alternative receiver structure is presented for discrete multitone (DMT)-based systems. The usual structure consisting of a (real) time domain equalizer (TEQ) with a (complex) 1-taps frequency domain equalizer (FEQ) per tone, is modiied into a structure with a (complex) multitaps FEQ per tone. By solving an MMSE problem, the SNR is maximized for each individual tone. This always results in a...
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ژورنال
عنوان ژورنال: IEEE Transactions on Communications
سال: 2003
ISSN: 0090-6778
DOI: 10.1109/tcomm.2003.813176