Device-to-Device Communications in LTE-Unlicensed Heterogeneous Network

Yuan, H;Guo, WS;Wang, SY

[Yuan, Hu; Guo, Weisi] Univ Warwick, Sch Engn, Coventry CV4 7AL, W Midlands, England.
[Wang, Siyi] Xian Jiaotong Univ Liverpool Univ, Dept Elect & Elect Engn, Xian, Peoples R China.

2016 IEEE 17TH INTERNATIONAL WORKSHOP ON SIGNAL PROCESSING ADVANCES IN WIRELESS COMMUNICATIONS (SPAWC)

Volume:2016-August

DOI:10.1109/SPAWC.2016.7536872

Publication Year:2016

Document Type:Conference Paper

Identifier:http://hdl.handle.net/20.500.12791/000821

Abstract

In this paper, the authors examine how the envisaged Device-to-Device (D2D) networks can efficiently scale its capacity by utilizing the unlicensed spectrum with appropriately designed LTE-Unlicensed (LTE-U) protocols. The LTE-U Listen Before Talk (LBT) algorithm is adapted for collision avoidance between traditional unlicensed user equipment (UEs), e.g. Wi-Fi UEs, and the LTE-U enabled D2D UEs. By considering different traffic loads, the analysis found that whilst the D2D UEs reduce the unlicensed network capacity, it increases the combined licensed and unlicensed network capacity by 63%%.

Keywords

Terms LTE-Unlicensed spectrum Heterogeneous Network Device-to-Device (D2D) Listen-before-talk (LBT) LTE-Unlicensed spectrum

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