【摘 要】
：
We are concerned with the optimal detector design for the all-bit-line MLC flash memory.We provide a channel model of the MLC flash memory,where the channel parameters are mathematically tractable.The
【机 构】
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Jinan University,GuangDong,China University of Ha
【出 处】
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中国电子学会第二十一届信息论学术年会
论文部分内容阅读
We are concerned with the optimal detector design for the all-bit-line MLC flash memory.We provide a channel model of the MLC flash memory,where the channel parameters are mathematically tractable.Then we present an optimal maximum a-posteriori sequence detector.The optimal detector can be executed over a trellis whose branch metrics can be computed by using Fourier transforms of analytically computable characteristic functions(corresponding to likelihood functions).The soft-output detectors for both simple one-dimensional channel models and more realistic page-orientated two-dimensional channel models are derived.Simulation results show not only that the soft-output detector has the same hard-output bit-error-rate performance as some previously known detectors did,but that the soft-output detector outperforms previously known detectors by a gain of 0.23 dB.
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