An Economic Welfare Analysis of Shared Spectrum Use: A Case Study of LTE-U/LAA
An Economic Welfare Analysis of Shared Spectrum Use: A Case Study of LTE-U/LAA
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共享频谱使用的经济福利分析：LTE-U/LAA 案例研究
DOI：
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发表时间：
2016
期刊：
影响因子：
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通讯作者：
W. Sharkey
中科院分区：
文献类型：
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作者：
Mark M. Bykowsky;W. Sharkey
LTE - U是频谱共享的一个有趣案例，因为它是不对称的。无线服务提供商可以利用授权频谱和非授权频谱，而非用户只能利用非授权频谱。此外，一方对频谱的使用可能会给另一方带来成本，并且由于服务提供商有时会从产生这种成本中获益，它可能会有错误的动机去接入非授权频段的频谱。此外，在某些情况下，非授权频谱目前可能被过度使用，因此可能使用效率低下。最后，由于非授权频段作为一种公共资源池，价格并不能完全用于引导用户在授权频谱和非授权频谱之间的分配。无线市场的这些独特特征共同引发了相关各方关于无线服务提供商采用LTE - U的福利效应的激烈争论。本文运用标准的经济技术，提出了一组经济模型，旨在评估在不同经济和技术条件下LTE - U的福利效应。
LTE-U is an interesting case of spectrum sharing in that it is asymmetric, since the wireless service provider can utilize licensed and unlicensed spectrum, while non-subscribers can only utilize unlicensed spectrum. Furthermore, the use of spectrum by one party can impose a cost upon another party and, because the service provider can at times benefit from imposing such a cost, it can have the wrong incentive to access spectrum in the unlicensed band. In addition, unlicensed spectrum may currently be over-consumed in certain situations and, thus, may be inefficiently used. Finally, prices are not fully relied upon to guide the assignment of users to licensed and unlicensed spectrum since the unlicensed band serves as a common pool resource. Together these unique features of the wireless market contribute to the lively debate among interested parties regarding the welfare effects of a wireless service provider’s decision to adopt LTE-U. Using standard economic techniques, this paper presents a set of economic models designed to assess the welfare effects of LTE-U under different economic and technical conditions.