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NAND Flash memories, due to their several desirable characteristics, have recently dominated the storage technology and its global market. Multi-level cell (MLC) Flash memories, which have higher storage capacities as each cell contains more than one bit of data, have gained considerable amount of attention and researches to build smaller and denser memory cells continue. Studies have shown that,...
NAND Flash memories are currently the most popular non-volatile memory elements. Multi-level memory cells and the technologic possibility of producing very small memory cells lead their storage capacity to increase enormously, and yet the aim of the next-generation Flash memory producers is to build smaller and denser memory cells. On the other hand, these improvements make the performance of these...
In this paper, we study the error performance of programming architectures for Flash memories. Specifically, we propose an advanced programming architecture and evaluate its performance via computer simulations. We show that the proposed method can improve the error performance under severe interfering effects, which is the case for the next-generation Flash memories with very small cells employing...
The newest family of low-density parity-check (LDPC) codes, spatially-coupled (SC) codes, is shown to have several desirable characteristics including low implementation complexity and close-to-optimal performance over a range of channels. Furthermore, because of their ribbon-shaped parity-check matrices, window decoding can be used to decode these codes, which leads to low-delay implementations....
Spatially-coupled LDPC codes have recently gained considerable amount of research interest because of their implementation advantages. In addition to their superior error performance over several communication channels, they are capable of low-delay decoding, achieved via a sliding window decoding architecture. On the other hand, window decoding is highly vulnerable against data transmission over...
Desirable characteristics of spatially-coupled low-density parity-check (LDPC) codes including low implementation complexity, low-delay, and close-to-optimal performance over a wide variety of channels make them a noticeable candidate for the next-generation wireless communication standards. However, error performance of the sliding window decoding scheme used to decode these codes is considerably...
Low implementation complexity, low-delay, and close-to-optimal performance of spatially-coupled LDPC codes over a wide variety of channels make them a very good candidate for upcoming wireless communication standards. However, due to the nature of the sliding window decoding architecture that is used to decode these codes, the associated error performance is considerably degraded over channels with...
Spatially-coupled codes have low-complexity structures and a low-delay decoding architecture, which nominate them as a very desirable candidate for communication standards. In this paper, a study on the asymptotic performance of spatially-coupled ensembles over the binary erasure channel (BEC) with density evolution analysis based on the belief-propagation algorithm is conducted. We identify all possible...
The spatially coupled code family was recently introduced in the error correction coding literature. In this paper, we provide a summary of the spatially coupled codes and the window based decoder that is used to decode these codes. We design spatially coupled codes that benefit from low decoding complexity and delay and present their error performance over the additive white Gaussian channel via...
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