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 ...
Free Space Optics is the technology which implies the line-of-sight link for the transfer of data between two distant points. The beam of light is used to provide optical connection that can transmit ...
The demand for greater data throughput seems endless, and it is accelerating faster than many people expected, creating bottlenecks in fiber-optics networks. Digital transmissions of 100 Gbps, which ...
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 ...
Fig 1. A DP-QPSK transmitter and a coherent receiver with ADC and DSP are key analog components for long-distance transmission systems. Fig 2. Shown is the measured (blue, green) and simulated (red) ...
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 ...
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 ...
BS digital broadcasting has a high channel capacity, 52 Mbps per carrier, for transmission of two HDTV and variety of data programs in one carrier. One satellite transponder, which is assigned to one ...
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