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DVB-T2 defines an optional MISO processing in its transmission chain to increase the diversity of the system with linear decoding methods such as ZF and MMSE. In this paper we propose to adapt the decoding process to choose between the simple low performance ZF decoder for non-frequency selective channels and an Adaptive K-Best Sphere Decoder (AKBSD) for frequency selective channels. We propose CIR-based...
The authors present a new family of spreading sequences called Manchester-coded modified-Legendre codes. The new sequences are suitable for both single and multi-rate optical code-division multiplexing/multiple-access (OCDM/A) systems. Also, the implementation of proposed sequences on spectral-amplitude coding-based OCDM system is presented. The encoders use complementary encoding and common zero-code...
Turbo codes are one of the best coding schemes for error correction because of their highest coding gain achievements. Number of iterations totally affects the turbo decoding process; it has an impact on the decoder performance, latency and power consumption. Dealing with battery-based devices requires paying attention to the battery life-time, consumed power, and hence the importance of a power efficient...
We present the design of a reconfigurable VLSI architecture suitable for multirate LDPC decoding. The basic decoder fabric is a square matrix of processing elements which communicate with each other through an interconnection network. The interconnection network consists of links and switches. The connectivity between processing elements is completely defined by scheduling the interconnection network;...
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