论文标题
与LTE-U和WiFi的价格竞争
Price Competition with LTE-U and WiFi
论文作者
论文摘要
LTE-U是在未经许可频谱中运行的长期演化（LTE）标准的扩展。 LTE-U不同于WiFi，WiFi是无牌频谱中使用的主要技术，因为它利用占空比模式访问频谱，并允许在许可频谱中与LTE部署更加无缝集成。在本文中，有许多关于LTE-U和WiFi在无牌频谱中共存的技术研究，而是从经济角度研究了这种技术的影响。我们考虑了一个模型，在该模型中，现任服务提供商（SP）在无执照的乐队中部署了基于占空比的LTE-U，并在执照频段中运行，并与仅使用WiFi等不同技术在未经许可的频段中运行的一个或多个参赛者竞争。我们表征了像LTE-U这样的技术对市场结果的影响，并表明该技术的福利影响是微妙的，部分取决于未经许可的频谱和参赛者数量。 LTE和WiFi之间光谱效率的差异也在SP之间的竞争中起作用。最后，我们研究了该技术使用的占空比和无牌光谱的一部分的影响。
LTE-U is an extension of the Long Term Evolution (LTE) standard for operation in unlicensed spectrum. LTE-U differs from WiFi, the predominant technology used in unlicensed spectrum in that it utilizes a duty cycle mode for accessing the spectrum and allows for a more seamless integration with LTE deployments in licensed spectrum. There have been a number of technical studies on the co-existence of LTE-U and WiFi in unlicensed spectrum In this paper, we instead investigate the impact of such a technology from an economic perspective. We consider a model in which an incumbent service provider (SP) deploys a duty cycle-based technology like LTE-U in an unlicensed band along with operating in a licensed band and competes with one or more entrants that only operate in the unlicensed band using a different technology like WiFi. We characterize the impact of a technology like LTE-U on the market outcome and show that the welfare impacts of this technology are subtle, depending in part on the amount of unlicensed spectrum and number of entrants. The difference in spectral efficiency between LTE and WiFi also plays a role in the competition among SPs. Finally, we investigate the impact of the duty cycle and the portion of unlicensed spectrum used by the technology.
