Softwarized LTE self-backhauling solution and its evaluation
Document typeConference report
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Rights accessRestricted access - publisher's policy
Long Term Evolution (LTE) is projected to be the mostly used mobile technology before 2020, thanks to the high data rates, all IP-based and simplified architecture it brings compared to previous mobile network technologies. To address the exponential data requirements of the future, a targeted solution for LTE is network densification, i.e., deploying small cells (cells with reduced radius compared to macro cells), which will enable better frequency reuse. However, a challenge here is the backhauling of the evolved-NodeBs (eNBs) used for small cells, since the fiber-based backhauling is costly and is not always feasible given the physical environment. For this, a recent idea is to use LTE self-backhauling, where an eNB can relay its data to another eNB through the use of LTE technology. In this paper, we develop and evaluate an implementation of LTE Self-Backhauling building on an open-source software and commodity hardware (specifically, regular PCs and low-cost software-defined radios) for the LTE system. For this, we implement a self-backhauled eNodeB, which connects to another eNB through an LTE connection. Through physical experimentation using off-the-shelf user equipments (UEs), we show that the method proposed is viable and can improve the network coverage and the throughput of the network.
CitationGamboa, G., Demirkol, I. Softwarized LTE self-backhauling solution and its evaluation. A: IEEE Wireless Communications and Networking Conference. "2018 IEEE Wireless Communications and Networking Conference (WCNC 2018): Barcelona, Spain: 15-18 April 2018". Institute of Electrical and Electronics Engineers (IEEE), 2018, p. 1-6.