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Abstract: A low-complexity mobile fronthaul architecture via digital code-division multiplexing (CDM) is proposed to enable channel aggregation of 4G-LTE signals. In comparison with traditional ...

Orthogonal time frequency and space (OTFS) modulation is a promising technology that satisfies high Doppler requirements for future mobile systems. OTFS modulation encodes information symbols and ...

In most business environments, telephone calls are typically handled by a receptionist or directed to specific extensions using an internal intercom system. The technology enabling this seamless ...

Abstract: In this paper, orthogonal frequency-division multiplexing-code-division multiplexing (OFDM-CDM) is presented and investigated as alternative to conventional OFDM for high rate data ...

With the aim of improving the quality and expanding the functions of digital terrestrial television broadcasting services, we have been developing an advanced transmission system that inherits key ...

GLONASS satellites traditionally use L1 and L2 frequency division multiple access (FDMA) signals. FDMA is characterized by a different transmit frequency for each satellite. Newer satellite ...

-A record-breaking transmission capacity of 22.9 petabits per second in a single optical fiber was demonstrated. -Large-scale space-division multiplexing technology was successfully combined with ...