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Experimental Demonstration of Spectrally Efficient Frequency Division Multiplexing Transmissions at E-Band
Abstract
This paper presents the design and the experimental demonstration of transmission of spectrally efficient frequency division multiplexing (SEFDM) signals, using a single 5-GHz channel, from 81 to 86 CHz in the E-hand frequency allocation. A purpose-built E-band SEFDM experimental demonstrator, consisting of transmitter and receiver GaAs microwave integrated circuits, along with a complete chain of digital signal processing is explained. Solutions are proposed to solve the channel and phase offset estimation and equalization issues, which arise from the well-known intercarrier interference between the SEFDM signal subcarriers. This paper shows the highest transmission rate of 12 Gb/s over a bandwidth varying between 2.67 to 4 CHz depending on the compression level of the SEFDM signals, which results in a spectral efficiency improvement by up to 50%, compared to the conventional orthogonal frequency division multiplexing modulation format- Telecommunications
- Signal Processing
- Other Electrical Engineering, Electronic Engineering, Information Engineering
- E-band transceiver
- orthogonal frequency division multiplexing (OFDM)
- E-band
- millimeter wave
- spectral efficiency
- intercarrier interference (ICI)
- multicarrier
- spectrally efficient frequency division multiplexing (SEFDM)