MAC Design for 5G Dense Networks Based on FBMC Modulation
The fifth generation (5G) of wireless networks is currently under investigation in order to address the well-known challenges of the high capacity demands and traffic volume. The promising solutions to meet these targets can be achieved through ultra-densification, efficient use of spectrum and advanced filtered modulation techniques. In this paper, we present an enhanced MAC protocol for 5G small cells operating at 5 GHz and assuming an FBMC physical layer. The proposed MAC design consists of scheduled-based and contention-based access schemes and involves a listen before talk (LBT) procedure to comply with ETSI regulations. The performance of the proposed FBMC-MAC design is then evaluated in dense deployment scenarios under different PHY/MAC parameter settings. Moreover, we study the performance of FBMC-MAC systems in the context of coexistence with WiFi systems.
Keywords5G FBMC Multiple access MAC design LBT LBE Dense small cell networks Contention access Scheduled access CSMA/CA
The research leading to these results received funding from the European Commission H2020 program under grant agreement n671705 (SPEED-5G project).
- 1.NGMN: 5G White Paper (2015). http://www.ngmn.org/home.html
- 2.Bellanger, M., et al.: FBMC physical layer: a primer (2010). http://www.ict-phydyas.org
- 3.ECMA 392 standard: MAC and PHY for operation in TV white space. 2nd Ed., June 2012Google Scholar
- 4.IEEE 1900.7-2015 standard: radio interface for white space dynamic spectrum access radio systems supporting fixed and mobile operation, December 2015Google Scholar
- 5.ETSI EN 301 893 V1.7.2, Broadband Radio Access Networks (BRAN): 5 GHz high performance RLAN; Harmonized EN covering the essential requirements of article 3.2 of the R&TTE Directive, July 2014Google Scholar
- 6.3GPP TS 36.213: Evolved Universal Terrestrial Radio Access (E-UTRA), physical layer procedures. Version 14.2.0, March 2017Google Scholar
- 8.Gerzaguet, R., et al.: Comparative study of 5G waveform candidates for below 6GHz air interface. In: ETSI Workshop on Future Radio Technologies, Air interfaces, Sophia Antipolis, February 2016Google Scholar
- 11.Filo, M., Edgar, R., Vahid, S., Tafazolli, R.: Implications of wrap-around for TGax Scenario 3 and Scenario 4, September 2015Google Scholar
- 12.3GPP TS 36.814: Evolved Universal Terrestrial Radio Access (E-UTRA), further advancements for E-UTRA physical layer aspects. Version 9.2.0, March 2017Google Scholar