On the orchestration of robust virtual LTE-U networks from hybrid half/full-duplex Wi-Fi APs

Mohammad J. Abdel-Rahman, Mohamed Abdelraheem, Allen MacKenzie, Kleber Cardoso, Marwan M Krunz

Research output: Chapter in Book/Report/Conference proceedingConference contribution

15 Scopus citations

Abstract

Two promising solutions have been recently proposed to address the massive growth in mobile traffic and wireless devices: LTE-U and in-band full-duplex (FD) wireless. LTE-U extends the benefits of LTE-A to the unlicensed 5 GHz band, used mainly by Wi-Fi users. However, the uncertainty in Wi-Fi user activities makes provisioning QoS guarantees to LTE-U users challenging. On the other hand, FD wireless can double spectrum efficiency by enabling simultaneous transmission and reception over the same frequency band. Our objective in this paper is to exploit excess capacity of deployed Wi-Fi networks (operating in the 5 GHz band) to orchestrate a 'robust' virtual LTE-U network from a hybrid set of half-duplex (HD) and FD Wi-Fi access points (APs). Although the orchestrated LTE-U network does not support deterministic QoS guarantees, it is designed to provide prespecified probabilistic QoS guarantees (hence, it is robust). Towards achieving our goal, we develop novel stochastic resource allocation formulations that optimally orchestrate a virtual LTE-U network from a hybrid set of HD/FD APs with the minimum cost. We first consider the single small-cell problem and propose a stochastic formulation, which we refer to as CCLTEUsingle. Then, we study the multi-cell stochastic allocation problem and develop another formulation, which we refer to as CCLTEUmulti. Our formulations adopt a 'chance-constrained stochastic programming' approach. We derive the deterministic equivalent programs of CCLTEUsingle and CCLTEUmulti and evaluate them numerically under various system parameters.

Original languageEnglish (US)
Title of host publication2016 IEEE Wireless Communications and Networking Conference, WCNC 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
Volume2016-September
ISBN (Electronic)9781467398145
DOIs
StatePublished - Sep 12 2016
Event2016 IEEE Wireless Communications and Networking Conference, WCNC 2016 - Doha, Qatar
Duration: Apr 3 2016Apr 7 2016

Other

Other2016 IEEE Wireless Communications and Networking Conference, WCNC 2016
CountryQatar
CityDoha
Period4/3/164/7/16

ASJC Scopus subject areas

  • Engineering(all)

Fingerprint Dive into the research topics of 'On the orchestration of robust virtual LTE-U networks from hybrid half/full-duplex Wi-Fi APs'. Together they form a unique fingerprint.

  • Cite this

    Abdel-Rahman, M. J., Abdelraheem, M., MacKenzie, A., Cardoso, K., & Krunz, M. M. (2016). On the orchestration of robust virtual LTE-U networks from hybrid half/full-duplex Wi-Fi APs. In 2016 IEEE Wireless Communications and Networking Conference, WCNC 2016 (Vol. 2016-September). [7564876] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/WCNC.2016.7564876