This paper proposes a Quadrature Phase Shift Keying (QPSK) using two different methods.
QPSK is one of the forms of Phase Shift Keying (PSK) modulation scheme. Generally a …

Modern systems rely on wireless communication for data transmission and system control.
Power dissipation and circuit area are crucial factors for such communication systems in …

Low power modulators are most efficient for wireless communication; the conventional
OQPSK modulator consumes more power and area. In this work, OQPSK modulator is …

An all-digital voltage-controlled oscillator (VCO)-based second-order multi-stage noise-
shaping (MASH) ΔΣ time-to-digital converter (TDC) is presented in this paper. The prototype …

For wireless communication, low-power modulators are Widely used because of their
efficiency. Quadrature Amplitude Modulation (QAM) is one of the popularly employed …

The modulators are the basic requirement of communication systems they are designed to
reduce the channel distortion & to use in RF communication hence many type of carrier …

Quadrature Phase Shift Keying (QPSK) modulation is a popular digital modulation
technique. Though it consumes less power and is quite compact as compared to other …

One of the prerequisites of Electronic Warfare (EW) is to have the means to provide secure
point-to-point wireless data and voice communications with other ground stations. New …

This paper describes FPGA implementation of a high-order continuous-time multi-stage
noise-shaping (MASH) time-to-digital converter (TDC). The TDC is based on Gated …

As one of the primary objectives of this work is to design a frequency-hopping spread-
spectrum (FH-SS) modulator using the DDFS architecture, this chapter investigates the …