Abstract: This paper addresses the energy consumption concern of LPWAN by proposing an extension for the LoRa modulation. Conventional LoRa encodes data in the frequency shift of a chirp, our ...

The advent of all‐optical modulation format conversion techniques has fundamentally reshaped modern optical communications. These techniques enable the direct manipulation of optical signals in their ...

Abstract: In this paper, coded user cooperation systems are integrated with combined frequency and phase modulation FSK/PSK. Bit error performance of the proposed ...

Binary FSK(Frequency Shift Keying) and PSK(Phase Shift keying) are extensively used in telecommunication for digital data transmission. FSK/PSK modulator circuits usually employ analogue components ...

MELVILLE, N.Y.--(BUSINESS WIRE)--January 22, 2020 -- Comtech Telecommunications Corp. (NASDAQ: CMTL) announced today that its Orlando, Florida-based subsidiary, Comtech Systems, Inc., which is part of ...

Telcoms operator Telstra will adopt a new modulation technique on its Endeavour subsea cable system, that links Australia and Hawaii. Telstra has tested the Advanced Coherent Toolkit (ACT) from ...