SpecEES: Efficient Monitoring and Spectrum Utilization of Multi-Layer Wireless Networks
Do Young Eun
Project runs from 10/01/2018 to 09/30/2021
The practice and experience in more than a decade have demonstrated that spectrum sharing is difficult: opportunistic spectrum access by secondary systems has a major technical hurdle it is difficult to
accurately sense the spectrum band status and detect a new primary signal while the secondary communication is ongoing. At the same time, it is factual that we have many existing and upcoming wireless access technologies, which have an acute demand for spectrum sharing and better utilization than today. We believe that the current difficulty to realize the full potential of radio spectrum is due to the binding of a wireless service to a specific radio spectrum. In other words, most of the prior studies focused on algorithms and protocols to improve spectrum efficiency, but paid less attentions to how these solutions will eventually benefit the users. With today’s huge number of wireless devices and ever-increasing new wireless services, we need a new paradigm to separate wireless services from radio spectrum, so that the radio spectrum is abstracted and mapped to a wireless service only when it is needed, rather than a static binding for years. Therefore, we propose to study a Multi-Layer wireless networks in the sense that each access technology being a radio layer, and each wireless device being able to user multiple wireless interfaces for opportunistic access. Our objective is to build a theoretical framework that stemming from detecting and identifying radio spectrum in a geographical region, to selecting an optimal access band or channel from an individual device’s perspective, and further to achieve rendezvous with common channels for pair-wise communications, and eventually building device-to-device communications via single-hop and multi-hop networking architecture.