Stochastic Evaluation of the Behaviour of 5 GHz Radio LAN Devices and the Impact on Future Radio Communication Regulations

5 GHz 无线电 LAN 设备行为的随机评估以及对未来无线电通信法规的影响

• 批准号: 514507-2017
• 负责人: Gohary, Ramy
• 金额: $ 1.82万
• 依托单位: Carleton University
• 依托单位国家: 加拿大
• 项目类别: Engage Grants Program
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=640087
• 关键词: Stochastic; Evaluation; Behaviour; GHz; Radio

Current wireless communications of data rely on two competing technologies: Long-Term-Evolution (LTE),which is used in today's cellular networks, and Wi-Fi which is used in home Internet routers. LTE cellularsystems are characterized by dedicated controlled spectrum access leading to Quality-of-Service~(QoS)guarantees such as data throughput and ubiquitous connectivity; these are, however, at a premium fee to theuser. Wi-Fi, on the other hand, relies on random access of freely-available radio spectrum, but with no QoSguarantees. Hence, while Wi-Fi deployment at large will enable cost-effective communication, it willpotentially result in considerable interference with existing LTE infrastructure, leading to compromisedperformance. From a complementary perspective, LTE service cellular providers have been progressivelycognizant of the ample spectrum available in the unlicensed bands. An LTE variant that will use such bands isthe license-assisted access (LAA); LAA uses downlink transmissions in the unlicensed band and uplinktransmissions in the licensed ones. Hence, LTE and Wi-Fi will co-exist within the same frequency bands.The objective of the current project is to focus on co-existence from the Wi-Fi side. In particular, this projectwill examine different Wi-Fi product implementations by various manufacturers. This will enable optimizingdeployment and management of Wi-Fi networks. This research will generate insight into how real Wi-Fiproducts deviate from theoretical requirements described in the 802.11 standard. In foresight, our research planwill contribute to establishing recommendations for forthcoming Wi-Fi and LAA co-existence. To achieve thisgoal, we will rely on real-time flexible wireless hardware that can be used to realize the Wi-Fi standard. Such ahardware is provided by Universal Software-Defined Radio Peripherals (USRPs), which can be configured viasoftware suites that enable the developer/researcher to control the key parameters that govern performanceand interference.

目前的无线数据通信依赖于两种相互竞争的技术：用于当今蜂窝网络的长期演进（LTE）和用于家庭互联网路由器的Wi-Fi。LTE蜂窝系统的特征在于专用的受控频谱接入，从而导致诸如数据吞吐量和无处不在的连接的服务质量（QoS）保证;然而，这些对用户来说是额外的费用。另一方面，Wi-Fi依赖于免费无线电频谱的随机接入，但没有QoS保证。因此，虽然Wi-Fi部署将实现具有成本效益的通信，但它可能会对现有的LTE基础设施造成相当大的干扰，从而导致性能受损。从补充的角度来看，LTE服务蜂窝提供商已经逐渐认识到非授权频带中可用的充足频谱。将使用这些频带的LTE变体是许可辅助接入（LAA）; LAA在未许可频带中使用下行链路传输，在许可频带中使用上行链路传输。因此，LTE和Wi-Fi将在同一频段内共存。本项目的目标是从Wi-Fi方面关注共存。特别是，该项目将研究不同制造商的不同Wi-Fi产品实现。这将有助于优化Wi-Fi网络的部署和管理。这项研究将深入了解真实的Wi-Fi产品如何偏离802.11标准中描述的理论要求。展望未来，我们的研究计划将有助于为即将到来的Wi-Fi和LAA共存制定建议。为了实现这一目标，我们将依靠可用于实现Wi-Fi标准的实时灵活的无线硬件。这种硬件由通用软件定义无线电外设（USRP）提供，它可以通过软件套件进行配置，使开发人员/研究人员能够控制控制性能和干扰的关键参数。