Monte Carlo FEXT cancellers for DSL channels
| Autor: | R. Hormis, Xiaodong Wang, Dong Guo |
|---|---|
| Rok vydání: | 2005 |
| Předmět: |
Engineering
biology business.industry Turbo MIMO Data_CODINGANDINFORMATIONTHEORY biology.organism_classification Coding gain Digital subscriber line Electronic engineering Fext Electrical and Electronic Engineering Particle filter business Decoding methods Computer Science::Information Theory Communication channel |
| Zdroj: | IEEE Transactions on Circuits and Systems I: Regular Papers. 52:1894-1908 |
| ISSN: | 1057-7122 |
| DOI: | 10.1109/tcsi.2005.852207 |
| Popis: | Crosstalk coupling is a severe impairment to transmission on twisted-pair copper cables such as digital subscriber telephone loops (DSLs). In this paper, we investigate the problem of far-end crosstalk (FEXT) cancellation for DSL. We propose a new soft interference canceller for coordinated self-FEXT cancellation across multiple twisted-pairs. The proposed receiver treats the FEXT-impaired channel as a multiple-input multiple-output (MIMO) channel; it uses the sequential Monte Carlo (SMC) technique to exploit the sequential structure inherent in iterative cancellation techniques for MIMO decoding. On telephone loops with strong FEXT, the proposed algorithm shows 0.5-dB coding gain with respect to previously proposed techniques. Furthermore, being soft-input-soft-output in nature, the proposed SMC receiver can iteratively exchange extrinsic information with a MAP decoder to successively cancel FEXT, leading to a turbo FEXT canceller. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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