M3dfe detector wrrh improved path selection

Krachkovsky, V.Yu.; Lee, Yuan Xing; Indukumar, K.C.

doi:10.1109/intmag.1999.837143

Cited by 2 publications

(3 citation statements)

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“…M3DFE improves the bit error rate (BER) by nearly 2 orders over MDFE at user density 3.0. The key to this is the path selection mechanism [1]. Selecting between top and bottom paths is done by comparing the slicer inputs 's and associated error signals 's with fixed thresholds, in addition to comparing the error energies of M3DFE.…”

Section: Path Selection and Detection/suppression Of Error Propagmentioning

confidence: 99%

“…Recent studies show that multi-path DFE detectors give much better bit-error-rates compared to single-path DFE detectors, comparable to partial response detectors [1], [2]. A serious drawback of DFE type approaches is the phenomenon of error propagation (EP).…”

Section: Introductionmentioning

confidence: 99%

“…Since EP is caused by past decision errors, correcting these errors in an optimal manner would effectively prevent further errors. Based on this principle, in this paper, we propose novel techniques for improving EP performance of multi-path DFE schemes, in particular, the coded M3DFE [1].…”

Section: Introductionmentioning

confidence: 99%

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Conditional ML and MAP techniques for error propagation suppression in multi-path DFE detectors

Lin

Krachkovsky²,

Mathew³

2000

IEEE Trans. Magn.

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Simple and effective Error Propagation (EP) suppression techniques were reported earlier for decision feedback equalization (DFE) detectors. However, these techniques are not well suited for multi-path DFE detectors because EP suppression and path selection mechanisms interfere with each other. In this paper, we propose novel techniques for improving the EP performance of multi-path DFE schemes, in particular, the (1 7) coded M3DFE (advanced multi-level DFE). The effectiveness of the proposed techniques is quantified by evaluating the sector failure rate (SFR) improvement. Simulation and calculation results show that after applying the proposed EP suppression techniques, M3DFE achieves almost the same SFR as that caused by random errors.Index Terms-Decision feedback equalization, multi-level DFE, error propagation suppression, multi-path detectors.

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Section: Path Selection and Detection/suppression Of Error Propagmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%