Competition with shared spectrum
Competition with shared spectrum
复制标题
与共享频谱的竞争
DOI：
10.1109/dyspan.2014.6817833
复制
发表时间：
2014
期刊：
影响因子：
--
通讯作者：
R. Berry
中科院分区：
文献类型：
--
作者：
Chang Liu;R. Berry
共享频谱已成为满足对无线数据服务爆炸式增长需求的一种有前景的方式。在本文中，我们考虑这样一种情形：一个主服务提供商和多个辅服务提供商之间共享频谱，它们都在争夺同一群客户。我们采用一个与早期研究无授权频谱竞争时所使用的类似模型，在该模型中，用户根据拥塞成本和服务提供商公布的价格之和来选择服务提供商。无授权频谱竞争已被证明可能会降低社会福利。相比之下，对于共享频谱，我们在此表明社会福利总是不会降低的，尽管主服务提供商的福利可能会减少。我们考虑了各种用户需求和拥塞成本模型。
Sharing spectrum has emerged as a promising way to meet the exploding demand for wireless data services. In this paper, we consider a scenario in which spectrum is shared between a primary and multiple secondary service providers, all of which are competing for a common pool of customers. We adopt a similar model to one used in earlier work to study competition with unlicensed spectrum, in which users select service providers based on the sum of a congestion cost and the price announce by the service provider. Competition with unlicensed spectrum was shown to potentially decrease social welfare. In contrast, with shared spectrum, we show here that social welfare is always non-decreasing, although the welfare of the primary provider can decrease. Various models of user demand and congestion costs are considered.