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Reducing Complexity of TVWS Operation: Complying with European Regulations

机译：降低TVWS操作的复杂性：符合欧洲法规

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摘要

License-exempt operation is considered to be a promising solution for spectrum-resource scarcity. Incumbent protection and coexistence management constitute two fundamental aspects of the successful operation. Under regulations for TV white space (TVWS), WS devices (WSDs) are required to access a WS database (WSDB) every time their individual location changes by >50 m. If the aggregate-interference effect is considered, one WSD's location change can incur frequent adjustment of the available spectrum for other WSDs. In this article, we present a practical low-complexity WSDB-assisted TVWS operation complying with the current regulatory progress in Europe. First, we propose a new procedure of setting emission limits for WSDs. By modeling the WSD distribution as the Poisson point process (PPP), we obtain a percentage emission limit valid for a WSD mobility region. By using the proposed procedure with the percentage emission limit in an example scenario, we reduce the complexity by 90% compared to the exiting procedure. Second, we present a succinct scheme to achieve the efficient coexistence of WSDs by deducing an upper bound on the number of cochannel WSDs over a given region.
机译：免许可证操作被认为是解决频谱资源短缺的有希望的解决方案。现有的保护和共存管理是成功运营的两个基本方面。根据电视空白（TVWS）的规定，每当WS设备（WSD）的单个位置变化> 50 m时，便要求它们访问WS数据库（WSDB）。如果考虑到总干扰效应，一个WSD的位置变化可能会导致对其他WSD可用频谱的频繁调整。在本文中，我们提出了一种实用的低复杂度WSDB辅助的TVWS操作，该操作符合欧洲当前的监管进展。首先，我们提出了一种新的方法来为水安全部门设定排放限值。通过将WSD分布建模为泊松点过程（PPP），我们获得了对WSD流动区域有效的排放百分比限制。通过在示例场景中使用建议的排放百分比限制程序，与现有程序相比，我们将复杂性降低了90％。其次，我们提出一种简洁的方案，通过推导给定区域内同信道WSD数量的上限来实现WSD的有效共存。

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