This paper proposes a new sub-threshold low power 9T static random-access memory (SRAM) cell compatible with bit interleaving structure in which the effective sizing adjustment of access transistors in write mode is provided  by isolating writing and reading paths. In the proposed cell, we consider a weak inverter to make better write mode operation. Moreover applying boosted word line feature ...

The diversity order is crucial for the performance of communication systems over Fading Channels. It has been shown by Zehavi that the diversity and hence performance of coded modulation over fading channels can be improved by bitwise interleaving at the encoder output, and by using an appropriate soft decision metric as an input t o the Viterbi decoder. A related approach is coordinate interle...

1999, Efficient Channel Coding, Inc. Helical Interleaving for Burst Error Correction Enhancement of Turbo Product Codes ECC has developed a helical interleaving technique that increases the burst error correction capability of TPCs. The burst error correction capabilities of the resulting TPCs is quite dramatic. In this note, we provide some simulation results to quantify this for the (4096,32...

This paper proposes application-specific instructions and their bit manipulation unit (BMU), which efficiently support scrambling, convolutional encoding, puncturing, interleaving, and bit stream multiplexing. The proposed DSP employs the BMU supporting parallel shift and XOR (exclusive-OR) operations and bit insertion/extraction operations on multiple data. The proposed architecture has been m...

The performance of Reed-Solomon codes over two classes of binary channels with memory, the queue-based channel (QBC) and the Gilbert-Elliott channel (GEC) is analyzed under the assumption of bounded distance decoding. In particular, we examine two interleaving strategies encountered when dealing with non-binary codes over a binary channel; namely, symbol interleaving and bit interleaving. An an...

There are several ways to use iterative decoding techniques with coded continuous phase modulation (CPM). This paper presents a method using parallel concatenation of convolutionally-coded CPM. All CPM schemes can be decomposed into a ring convolutional code and a memoryless signal mapper. This allows a properly designed convolutional code trellis to be combined with the CPM trellis, producing ...