EARS: Toward Harmonious Coexistence of Heterogeneous Wireless Services

可用于无线通信的无线电频谱是有限但极其宝贵的资源。 随着新的无线应用的激增，无线电频谱的使用已经加剧到迫切需要新的频谱共享机制和改进的频谱政策的程度。在最近的NSF研讨会报告增强无线电频谱（EARS），几个重大挑战概述了研究界实现提高未来频谱使用效率的愿景。 巨大挑战之一是异构无线技术的和谐共存，其目标是适应将在相同无线电频谱带中操作的多种无线接入技术。拟议的研究通过调查以下三个紧密耦合的研究领域来解决共存的大挑战：（1）Wi-Fi和蜂窝在未经许可的频段上的共存;（2）雷达和蜂窝在雷达频段上的共存;以及（3）新的共存软件和硬件测试平台。 拟议的研究活动将在多个方面促进更广泛的影响活动：（1）改善和影响政府未来的频谱政策;（2）将技术过渡到行业;（3）开发新的教学材料和软件工具用于课堂;（4）吸引和吸引学生，特别是女性和代表性不足的学生参与频谱共享研究活动。 拟议的研究通过解决无线电频段上两种最流行的无线服务（Wi-Fi和蜂窝）来解决共存的大挑战。拟议的关于Wi-Fi和蜂窝网络在未授权频段上共存的研究采用了一种新方法，通过将焦点转移到用户侧并最大限度地提高用户总体满意度来解决这两种技术之间的潜在冲突。雷达和蜂窝在雷达波段上共存的研究探索了政府正在考虑共存的大部分未开发的雷达频谱。所提出的架构远远超出了目前的频谱接入服务器的概念，考虑到一些独特的特点和挑战与雷达系统。将开发新的软件和硬件测试平台，为研究界提供急需的设施，以验证和试验新的共存方法。 研究结果将与政府和监管机构分享，以帮助改善频谱政策，这对于使拟议的新共存技术在真实的世界中产生影响至关重要。

The radio frequency spectrum that can be used for wireless communications is a finite but extremely valuable resource. With the proliferation of new wireless applications, the use of the radio spectrum has intensified to the point that there is a critical need of new spectrum-sharing mechanisms and improved spectrum policies. In the recent NSF workshop report on Enhancing Access to the Radio Spectrum (EARS), several Grand Challenges are outlined for the research community to realize the vision of enhancing the efficiency of future spectrum use. One of the Grand Challenges is harmonious co-existence of heterogeneous wireless technologies, with the goal of accommodating multiple wireless access technologies that would operate in the same radio spectrum band. The proposed research addresses the co-existence Grand Challenge by investigating the following three tightly-coupled research areas: (1) Coexistence between Wi-Fi and cellular on unlicensed bands; (2) Coexistence of radar and cellular on radar bands; and (3) New software and hardware testbeds for coexistence. The proposed research activities will catalyze broader impact activities in multiple dimensions: (1) improving and influencing future spectrum policies by the government; (2) transitioning technologies to industry; (3) developing new education materials and software tools to be used in classroom; and (4) attracting and engaging students, particularly female and under-represented students in spectrum-sharing research activities. The proposed research addresses the coexistence Grand Challenge by tackling two of the most popular wireless services (Wi-Fi and cellular) on radio spectrum bands. The proposed research on coexistence between Wi-Fi and cellular on unlicensed bands takes a new approach to resolve the potential conflict between the two technologies by shifting focus to the user side and maximizing total user satisfaction. The research on coexistence between radar and cellular on the radar bands explores the largely untapped radar spectrum that the government is considering for coexistence. The proposed architecture goes well beyond the current Spectrum Access Server concept by considering some unique characteristics and challenges associated with radar systems. New software and hardware testbeds will be developed to offer the much-needed facility for the research community for validation and experimentation of new approaches for coexistence. The outcomes of the research will be shared with government and regulatory agencies to help improve spectrum policies, which are crucial to enable the proposed new coexistence technologies to make impacts in the real world.