For the QPSK modulator shown in the figure above, construct the truth table, phasor diagram, and constellation diagram. In Figure 2, it can be seen that with QPSK, each of the four possible output ...
This demodulator is suitable for the quadrature phase-shift keying (QPSK) modulator previously published by the same author, "Novel Low-Cost QPSK Modulator Needs No Adjustments" (electronic design, ...
This paper is the study of the QPSK (Quadrature Phase Shift keying) modulation technique using AWGN (Additive White Gaussian Noise) and Multipath Rayleigh fading channel. In QPSK scheme the authors ...
Eliminating software adjustments in circuits based on digital logic improves robustness and reduces cost for small-production-run series. This circuit is a cost-improved version of classical QPSK ...
The built-in carrier chip in the electric meter (such as the PL3201 SOC architecture) first collects data such as user electricity consumption, voltage, and current, converting the digital signals ...
In this paper, performance analysis for different combining technique for receiver diversity in a MIMO system is presented. A general framework for diversity combining techniques in cooperative ...
Bandwidth variable transmitter (BVT) is one of the key enabling technologies for future EONs. In the University of Bristol's lab, transmitters are designed to generate optical signals with variable ...
SAN JOSE, Calif.--(BUSINESS WIRE)--GigOptix, Inc. (NYSE MKT: GIG), a leading supplier of advanced semiconductor and optical communications components, today announced that it will be showcasing its ...
This series is excerpted from “3G Evolution, HSPA and LTE for Mobile Broadband, 2e.” Order this book today and receive an additional 20% discount. www.elsevierdirect.com and make sure to type in 92839 ...
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