Multiuser simultaneous two-way ranging

Ryan Keating, Dongning Guo

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Location awareness will be crucial for many future wireless network applications, such as the Internet of Things and vehicular networks. Existing localization works typically propose sequential signaling schemes, where one pair of nodes communicates to range their distance at a time. This implies high ranging overhead for large networks, where many nodes are within range of each node. In this paper, a novel scheme is proposed which takes merely two frames of transmissions. In the first frame, all nodes transmit their respective signatures. In the second frame, all nodes basically repeat what they have received in the first frame multiplied by a scrambling sequence (assuming full duplexing). By the end of the second frame, every node can estimate not only its distance to all nodes within range, but also the distances between neighboring nodes which are within range of each other. It is shown that in a half-duplex setting the scheme can still be utilized to perform two-way ranging. Successive interference cancellation can also be leveraged with the scheme in order to improve performance for subsequent estimates in interference heavy scenarios. The proposed scheme is highly scalable, and is validated using simulation.

Original languageEnglish (US)
Article number8368093
Pages (from-to)5107-5119
Number of pages13
JournalIEEE Transactions on Wireless Communications
Volume17
Issue number8
DOIs
StatePublished - Aug 2018

Keywords

  • Ad hoc network
  • Full duplex
  • Internet of Things
  • Multiuser detection
  • Round trip time
  • Successive interference cancellation
  • Time of arrival

ASJC Scopus subject areas

  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Applied Mathematics

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