ICT Express (Apr 2023)

Cooperative space-time line code for relay-assisted internet of things

  • Janghyuk Youn,
  • Jeong Seon Yeom,
  • Jingon Joung,
  • Bang Chul Jung

Journal volume & issue
Vol. 9, no. 2
pp. 253 – 257

Abstract

Read online

We propose a novel cooperative space–time line code (C-STLC) scheme to improve performance of a relay-assisted internet of things (R-IoT). The proposed C-STLC operates with fully distributed manner, where each relay IoT device (RID) attempts to decode the received signal from a source IoT device at the first hop and the RIDs, that succeeded decoding, send the STLC encoded signal based on their local channel state information (CSI) to a single access point (AP) at the second hop. Then, the AP decodes the received signals without CSI. As a main result, we mathematically analyze the outage probability (OP) of the proposed C-STLC scheme. It is shown that the proposed C-STLC significantly outperforms conventional cooperative relaying techniques in terms of the OP.

Keywords