Survey of outdoor and indoor architecture design in TVWS networks

To understand the utilizability of TV white spaces （TVWS）, a comprehensive overview of the outdoor and indoor network design over TVWS is given. The related challenges are analyzed. The potential approaches to overcoming these challenges are discussed. The open research issues are investigated. The result shows that： in the indoor scenario, the white space ratio is on average 18.4% higher than that in the outdoor scenario, which corresponds to 7.7 vacant TV channels. Both network design includes 7 key components： TV spectrum identification, access point （AP） discovery, AP association, spectrum allocation, band width adaptation, interface control and disruption handling. Due to building penetration loss, the indoor TVWS identification and AP placement should be carefully considered in the indoor scenario.

TVW儿童健康研究所

新建筑可容纳独立的儿童常见疾病研究部门，如哮喘、过敏、传染病、先天缺陷、遗传疾病、儿童死亡、残疾、白血病、癌症．青少年精神疾病和自杀等，并提供“有水的”的实验室环境和“无水的”的办公环境。现有的220位员工能够充分使用这些保证尖端研究的所有设施，包括办公室，实验室、技术支持区、专家研究区、会议室，小礼堂、公共诊所、展览区．调查中心、土著研究中心、员工餐厅以及阅览室所有这些设施都靠近玛格丽特公主儿童医院。