System Level Comparison of Relay and RF Repeater Based Technologies in WiMAX Systems

Author

Davydov, Alexei ; Papathanassiou, Apostolos ; Maltsev, Alexander

Author_Institution

Wireless Stand. & Technol. Group, Intel Corp., Nizhny Novgorod, Russia

fYear

2009

Firstpage

205

Lastpage

208

Abstract

Relay and RF repeater technologies are considered as an effective means to improve the system throughput and coverage performance of 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.

Keywords

OFDM modulation; WiMax; cellular radio; frequency division multiple access; interference suppression; radio repeaters; RF repeater; WiMAX systems; cellular OFDMA systems; intelligent interference avoidance; multiple antenna techniques; relay-based systems; Downlink; Interchannel interference; Power system relaying; Radio frequency; Receiving antennas; Relays; Repeaters; Throughput; Time frequency analysis; WiMAX; RF repeater; Relay; WiMAX; multi-hop; system level simulations;

fLanguage

English

Publisher

ieee

Conference_Titel

Mobile WiMAX Symposium, 2009. MWS '09. IEEE

Conference_Location

Napa Valley, CA

Print_ISBN

978-1-4244-3989-8

Electronic_ISBN

978-0-7695-3719-1

Type

conf

DOI

10.1109/MWS.2009.38

Filename

5277846