Design of Hybrid Wireless and Power Line Sensor Networks with Dual-Interface Relay in IoT

Yuwen Qian, Jiahui Yan, Haibing Guan, Jun Li, Xiangwei Zhou, Shengjie Guo, Dushantha Nalin K. Jayakody

Research output: Contribution to journalArticlepeer-review

25 Citations (Scopus)


The hybrid wireless and power line communication (HWPLC) networks address the problem that mobile wireless sensors and power line communication (PLC) sensors can not communicate with each other within an Internet of Things (IoT) network. In this paper, we design a relay equipped with a dual wireless and PLC interface, which connects both the PLC and wireless sensors into an IoT network. Furthermore, the dual-interface relay forwards messages by adaptively selecting a interface according to the channel state. A general mathematical probability model of the dual-interface relaying system is presented. The probability density function of the output signal-to-noise ratio (SNR) is developed, which is based on explicit closed-form expressions derived from the statistics character of the PLC and wireless channel. Furthermore, the average capacity, bit-error rate (BER) expressions, and the outage probability formulas are derived. Numerical results show that the HPLWC relaying system with the dual-interface can significantly improve the performance of capacity, BER, and outage probability by adaptively selecting the interface with the optimal received SNR.

Original languageEnglish
JournalIEEE Internet of Things Journal
Publication statusAccepted/In press - 10 Jul 2017


  • Ad hoc networks
  • capacity.
  • Internet of Things
  • Internet of things
  • outage probability
  • Power line communications
  • power line communications
  • Relays
  • sensor networks
  • Signal to noise ratio
  • Wireless communication
  • wireless networks
  • Wireless sensor networks

ASJC Scopus subject areas

  • Signal Processing
  • Information Systems
  • Hardware and Architecture
  • Computer Science Applications
  • Computer Networks and Communications
  • Information Systems and Management

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