Bringing Transmit Antenna Diversity to LPWANs: An Experimental Testbed Implementation

  • Felix Wunsch Karlsruhe Institute of Technology
  • Holger Jäkel Karlsruhe Institute of Technology
  • Friedrich K Jondral Karlsruhe Institute of Technology

Abstract

In this paper, we present a Software-Defined Radio (SDR) testbed implementation of an experimental waveform for Low Power Wide Area Networks (LPWANs) in GNU Radio. The code is made available on GitHub. Designed specifically for the uplink in LPWANs, the waveform is based on Differential Spatial Modulation (DSM) and Direct Sequence Spread Spectrum Code Division Multiple Access (DS-CDMA). We provide a detailed overview of the testbed implementation with an emphasis on the synchronization process as well as results from simulations and over-the-air measurements in a lab environment.

Published
2018-09-18
How to Cite
WUNSCH, Felix; JÄKEL, Holger; JONDRAL, Friedrich K. Bringing Transmit Antenna Diversity to LPWANs: An Experimental Testbed Implementation. Proceedings of the GNU Radio Conference, [S.l.], v. 3, n. 1, sep. 2018. Available at: <https://pubs.gnuradio.org/index.php/grcon/article/view/47>. Date accessed: 11 dec. 2018.