System level comparison of relay and RF repeater based technologies in WiMAX systems

  • Authors:

  • Alexei Davydov;Apostolos Papathanassiou;Alexander Maltsev

  • Affiliations:

  • Intel Corporation, Nizhny Novgorod, Russia;Intel Corporation, Nizhny Novgorod, Russia;Intel Corporation, Nizhny Novgorod, Russia

  • Venue:
  • MWS'09 Proceedings of the 2009 IEEE conference on Mobile WiMAX
  • Year:
  • 2009

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Abstract

Relay and RF repeater technologies are considered as an effective means to improve the system throughput and coverage performance or cellular OFDMA systems. IN this paper, we provide a comprehensive system level comparison of relay and RF repeater based systems utilizing multiple antenna techniques. For relay-based systems we consider a novel relay mode selection procedure that allows intelligent interference avoidance within the same cell. The results show that for both downlink (DL) and uplink (UL) transmission the relay-based system can offer both average throughput and coverage enhancements, while the repeater-based system is capable of coverage extension only. The geographical areas that are most suitable for relay or RF repeater modes are also calculated through system level analysis.