Relay selection for efficient HARQ-IR protocols in relay-assisted multisource multicast networks

Vien Q., Nguyen H. X., Shah P., EVER E., To D.

2014 79th IEEE Vehicular Technology Conference, VTC 2014-Spring, Seoul, South Korea, 18 - 21 May 2014, vol.2015-January, (Full Text) identifier

  • Publication Type: Conference Paper / Full Text
  • Volume: 2015-January
  • Doi Number: 10.1109/vtcspring.2014.7023073
  • City: Seoul
  • Country: South Korea
  • Middle East Technical University Northern Cyprus Campus Affiliated: Yes

Abstract

This paper investigates relay selection for reliable data transmission in relay-assisted multisource multicast networks (RMMNs) where multiple source nodes distribute information to a set of destination nodes with the assistance of multiple relay nodes. Hybrid automatic repeat request with incremental redundancy (HARQ-IR) is used and supported by either a physical-layer network coding (PNC) or an analog network coding (ANC) technique employed at the relays. By deriving efficiency metrics of the HARQ-IR protocols, we propose relay selection schemes for RMMNs to minimize the transmission delay and energy consumption. Simulation results are provided to analyse each relay selection scheme.