On the Potential of Full Duplex Performance in 5G Ultra-Dense Small Cell Networks

Marta Gatnau, Marko Fleischer, Gilberto Berardinelli, Nurul Huda Mahmood, Preben Elgaard Mogensen, Helmut Heinz

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

10 Citations (Scopus)
502 Downloads (Pure)

Abstract

Full duplex allows a device to transmit and receive simultaneously in the same frequency band, theoretically doubling the throughput compared to traditional half duplex systems. However, several limitations restrict the promised full duplex gain: non-ideal self-interference cancellation, increased inter-cell interference and traffic constraints. In this paper, we first study the self-interference cancellation capabilities by using a real demonstrator. Results show that achieving ~110 dB of cancellation is already possible with the current available technology, thus providing the required level of isolation to build an operational full duplex node. Secondly, we investigate the inter-cell interference and traffic constraints impact on the full duplex performance in 5th generation systems. System level results show that both the traffic and the inter-cell interference can significantly reduce the potential gain of full duplex with respect to half duplex. However, for large traffic asymmetry, full duplex can boost the performance of the lightly loaded link.
Original languageEnglish
Title of host publicationSignal Processing Conference (EUSIPCO), 2016 24th European
Number of pages5
PublisherIEEE
Publication date2016
DOIs
Publication statusPublished - 2016
Event24th European Signal Processing Conference - Hilton Budapest, Budapest, Hungary
Duration: 29 Aug 20162 Sept 2016
Conference number: 24

Conference

Conference24th European Signal Processing Conference
Number24
LocationHilton Budapest
Country/TerritoryHungary
CityBudapest
Period29/08/201602/09/2016
SeriesEuropean Signal Processing Conference (EUSIPCO)
ISSN2076-1465

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