Uplink One-tone Filtered Multitone Modulation Transmission for Machine Type Communications

TL;DR

This paper proposes a novel uplink waveform for machine type communications that uses one-tone filtered multitone modulation, reducing hardware complexity and synchronization requirements, with analysis of interference and complexity compared to OFDM.

Contribution

It introduces a one-tone filtered multitone modulation scheme for uplink MTC that simplifies hardware and relaxes synchronization, with comprehensive interference and complexity analysis.

Findings

Reduced hardware complexity for MTC nodes

Loosened synchronization requirements

Interference and complexity analysis shows advantages over OFDM

Abstract

To accommodate current machine type communications (MTC), an uplink waveform is proposed where MTC nodes use one carrier to transmit signal, and central nodes demodulate different nodes' signal jointly. Furthermore, the carrier bandwidth is variable to fit for the channels of nodes. This waveform may reduce the hardware complexity of low cost MTC nodes, and loose the time and frequency domain synchronization requirements of the entire system. This paper also provides the interference analysis and complexity comparisons of proposed scheme and orthogonal frequency division multiplexing (OFDM).