Experimental Evaluation of Interference Rejection Combining for 5G small cells,

Dereje Assefa, Gilberto Berardinelli, Fernando Menezes Leitão Tavares, Oscar Tonelli, Troels Bundgaard Sørensen, Preben Mogensen

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

6 Citations (Scopus)

Abstract

The Interference Rejection Combining (IRC) receiver
can significantly boost the network throughput in scenarios
characterized by dense uncoordinated deployment of
small cells, as targeted by future 5th generation (5G) radio
access technology. This paper presents an experimental study
on the potential benefit of IRC receiver in real deployment
scenarios. The study is carried out using a software defined
radio (SDR) testbed network with four cells, each featuring
one Access Point (AP) and one User Equipment (UE) with
two antennas. The testbed network was placed in an indoor
office and open hall scenarios, respectively. In each scenario, the
cells were arranged to characterize the propagation in different
spatial configurations. Using the obtained propagation data, we
analysed the cases of closed and open subscriber group for the
respective scenarios, to compare the achievable throughput with
IRC and Maximum Ratio Combining (MRC) receivers. Different
frequency reuse schemes were also considered. The throughput
results confirm the effectiveness of the IRC receiver in improving
the network throughput with respect to the MRC receiver, under
the assumption of single stream (rank 1) transmission. Results
show average gains up to around 40% and outage gains up to
70% over the MRC receiver. The combination of the IRC receiver
and frequency reuse achieves a favourable trade-off between
the network throughput and fairness. Overall, due to the direct
propagation, the open hall open subscriber group scenario is
benefiting the most from the ability of the IRC receiver to cancel
a strong dominant interferer.
Original languageEnglish
Title of host publicationIEEE Wireless Communications and Networking Conference (WCNC), 2015
PublisherIEEE Press
Publication dateMar 2015
Pages652 - 657
ISBN (Electronic)978-1-4799-8406-0
DOIs
Publication statusPublished - Mar 2015
Event2015 IEEE Wireless Communications and Networking Conference (WCNC) - New Orleans, LA, United States
Duration: 9 Mar 201512 Mar 2015

Conference

Conference2015 IEEE Wireless Communications and Networking Conference (WCNC)
Country/TerritoryUnited States
CityNew Orleans, LA
Period09/03/201512/03/2015
SeriesI E E E Wireless Communications and Networking Conference. Proceedings
ISSN1525-3511

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