DESIGN OF ANALOG CIRCUITS USING PSEUDO FLOATING GATE

In this paper we present pseudo floating gate and its bidirectional property. Inverter also can be implemented using bidirectional property. The inverter can be made bidirectional simply by interchanging vdd and gnd and no need to add any circuitry or any amplifier. We are using this inverter to implement the differentiator and integrator. We are first implementing inverter using pseudo floating gate. The bidirectionality of the gate is further evolved to be able to control signal flow conditions. And finally using this inverter we are implementing differentiator and integrator. Typical applications are in filter design and IO ports in ICs. Linearity and AC simulations are presented to show the good properties and versatility suited for Bi-directional analog circuit design

Algorithms and Architectures for Reduced Complexity LDPC Decoding: A survey

Abstract — Low-density parity-check (LDPC) code, have become most popular, promising near-optimal error correction code (ECC). Trade off between the performance and complexity of LDPC decoders is of paramount interest to communication engineers and researchers. The VLSI implementation of LDPC decoder is a big challenge. VLSI implementations has many difficulties to achieve as lower error floors, reduced interconnect complexities, small chip areas, lower power dissipation to support multiple code lengths and code rates. This Paper provides an overview of LDPC codes structure and different decoding algorithms. Index Terms — VLSI implementation, low complexity, LDPC, Min sum, etc. I