Auction-Based Coopetition between LTE Unlicensed and Wi-Fi
Haoran Yu, George Iosifidis, Jianwei Huang, Leandros, Tassiulas

TL;DR
This paper proposes an auction-based framework for spectrum sharing between LTE and Wi-Fi in unlicensed bands, enabling efficient cooperation and competition to maximize data rates.
Contribution
It introduces a novel auction mechanism accounting for externalities in LTE-Wi-Fi spectrum sharing, with analysis of equilibrium strategies and optimal reserve rate.
Findings
The auction effectively facilitates LTE-Wi-Fi cooperation.
Equilibrium bidding strategies are uniquely characterized.
Optimal reserve rate improves spectrum utilization.
Abstract
Motivated by the recent efforts in extending LTE to the unlicensed spectrum, we propose a novel spectrum sharing framework for the coopetition (i.e., cooperation and competition) between LTE and Wi-Fi in the unlicensed band. Basically, the LTE network can choose to work in one of the two modes: in the competition mode, it randomly accesses an unlicensed channel, and interferes with the Wi-Fi access point using the same channel; in the cooperation mode, it delivers traffic for the Wi-Fi users in exchange for the exclusive access of the corresponding channel. Because the LTE network works in an interference-free manner in the cooperation mode, it can achieve a much larger data rate than that in the competition mode, which allows it to effectively serve both its own users and the Wi-Fi users. We design a second-price reverse auction mechanism, which enables the LTE provider and the Wi-Fi…
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Taxonomy
TopicsWireless Networks and Protocols · Advanced Wireless Network Optimization · Cooperative Communication and Network Coding
