NeTS: Small: Collaborative Research: Reliable 60 GHz WLANs through Coordination: Measurement, Modeling and Optimization

尽管无线网络在过去几年中取得了显着进步，但新兴的应用，如增强/虚拟现实和超高清视频流，以及移动和可穿戴设备的持续增长，正在导致比以往更高的移动流量需求。很明显，今天的无线网络（如2.4/5 GHz Wi-Fi）正在努力满足需求，有必要设计下一代无线网络，以可靠的方式提供更高的数据速率。使用60 GHz无授权毫米波频谱的无线通信已经显示出通过提供每秒千兆比特的数据速率来弥合这一差距的潜力。设计企业级60ghz毫米波无线网络具有挑战性，因为在存在人为阻塞的情况下会观察到方向性和严重的性能下降。该项目的主要目标是设计基于网络协调的主动阻塞缓解技术，以实现高数据速率无线链路，同时确保存在移动性和阻塞的可靠性。该项目将对高速毫米波移动无线网络的研究和开发产生直接影响。它将为本科生和研究生提供实际的无线网络研究经验。该项目的目的是研究一类基于60 GHz无线局域网接入点之间协调的新型主动阻塞缓解技术。拟议的研究利用从多个接入点到移动设备的联合传输。通过智能选择接入点和天线扇区，这种联合传输可以提供足够的空间分集和到达角分离，从而在存在自体阻塞的情况下实现稳健的通信。该项目将使用测量、建模和优化来设计、分析和评估联合传动。首先，将使用测量开发链路阻塞的多状态性能退化模型。这些模型将用于设计新的可靠性指标，以评估联合变速器提供的鲁棒性。其次，基于测量驱动模型，在考虑可靠性和空间复用权衡的情况下，研究了以最大化网络吞吐量为目标的联合接入点选择和链路调度问题。第三，通过对60 GHz链路上360度实时视频流的测量，研究联合传输对链路层延迟的影响，并研究延迟敏感调度策略。拟议的研究将使用60 GHz现成设备和带有相控天线阵列的软件无线电平台进行评估。该奖项反映了美国国家科学基金会的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。

Although wireless networks have advanced significantly over the last few years, newly emerging applications such as augmented/virtual reality and ultra high-definition video streaming and the continuous growth of mobile and wearable devices are leading to higher than ever mobile traffic demand. It is becoming apparent that today's wireless networks (such as 2.4/5 GHz Wi-Fi) are struggling to satisfy the demand and there is a need for designing the next generation of wireless networks that can provide significantly higher data rates in a reliable manner. Wireless communication using the 60 GHz unlicensed millimeter-wave spectrum has shown the potential to bridge this gap by providing multi-gigabit per second data rates. Designing enterprise-grade 60 GHz millimeter-wave wireless networks is challenging due to directionality and severe performance degradations observed in presence of human blockages. The main objective of this project is to design proactive blockage mitigation techniques based on network coordination that can enable high data rate wireless links while ensuring reliability in presence of mobility and blockages. The project will have immediate impact on research and development of high-speed millimeter-wave mobile wireless networks. It will result in hands-on wireless networking research experience for undergraduate and graduate students. The aim of this project is to investigate a novel class of proactive blockage mitigation techniques based on coordination between the access points of 60 GHz WLANs. The proposed research exploits joint transmissions from multiple access points to mobile devices. With intelligent selection of access points and antenna sectors, such joint transmissions can provide adequate spatial diversity and separation of angle-of-arrival, resulting in robust communication in presence of self-body blockages. The project will use measurements, modeling and optimization to design, analyze and evaluate joint transmissions. First, multi-state performance degradation models for link blockages will be developed using measurements. The models will be used to design novel reliability metrics for assessing the robustness provided by joint transmissions. Second, based on the measurement-driven models, a joint access point selection and link scheduling problem will be studied with the aim of maximizing network throughput taking into account reliability-spatial reuse trade-offs. Third, the impact of joint transmissions on link layer delay will be studied using measurements on 360-degree live video streaming over 60 GHz links, and delay sensitive scheduling strategies will be investigated. The proposed research will be evaluated using 60 GHz off-the-shelf devices and a software-radio platform with phased antenna arrays.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.