EARS: Efficient Spectrum Allocation Auctions in Secondary Markets with Dynamic Random Supply and Demand

现有的固定频谱分配技术不能满足无线应用日益增长的频谱需求。为了提供动态的频谱接入，基于拍卖的频谱交易受到了相当大的关注。在频谱交易中，获得许可的用户将其未使用的频谱出租给未获得许可的用户，以换取金钱。未使用频谱的可用性取决于许可用户的使用模式，并随时间、频率和空间域而变化。未经许可的用户可以根据他们的需求竞标这一频谱，这同样会随着时间和地点的不同而变化。因此，拍卖场景必须处理动态的用户需求和动态的频谱供应。现有的频谱交易研究要么考虑静态的拍卖环境，要么最多考虑动态拍卖环境的一个方面。因此，考虑具有不同需求的竞拍者动态到达并竞标动态可用的频谱单元的拍卖场景对于提高频谱单元的利用率至关重要。本项目研究了一个动态拍卖框架，并致力于制定拍卖规则和规则以实现高效的频谱分配。这项研究包括四个主要部分。(1)开发了具有可变寿命和动态频谱供应的动态到达用户的动态拍卖框架。(2)解决与供求在单位和期限方面的多样性有关的设计挑战，并设计一个真实的拍卖机制。(3)设计了一个符合拍卖规则和规则的通用拍卖框架，并使用安全通信协议定义了通信方式。(4)开发了一个测试平台来实现、实验和验证拍卖框架。这项研究将加强无线电频谱的共享和利用，为现有和新的应用提供更多的频谱机会。该项目为从事拟议研究的研究生提供跨学科的研究机会。该项目将研究成果纳入课程，并招收来自代表性不足背景的学生。

The increasing spectrum demand from wireless applications cannot be satisfied with existing fixed spectrum allocation techniques. To provide dynamic spectrum access, auction based spectrum trading has received considerable attention. In spectrum trading, licensed users rent their unused spectrum to unlicensed users in exchange for money. The availability of unused spectrum depends on the usage pattern of licensed users and varies over time, frequency, and spatial domain. Unlicensed users can bid for this spectrum according to their needs which again vary by time and location. Thus, the auction scenario has to deal with the dynamic user demand and dynamic spectrum supply. Existing research on spectrum trading consider either a static auction environment or at most one side of the dynamics of the auction environment. Therefore, for improving spectrum unitization, it is critical to consider an auction scenario where bidders with heterogeneous demand arrive dynamically and bid for dynamically available spectrum units.This project studies a dynamic auction framework and undertakes the development of auction rules and regulations designed to achieve an efficient spectrum allocation. The study consists of four major components. (1) Developing the dynamic auction framework with dynamic arrival of users with variable lifetime and dynamic spectrum supply. (2) Tackling the design challenges associated with the diversity in demand and supply in terms of units and duration and devising a truthful auction mechanism. (3) Designing a generic auction framework to fit the auction rules and regulations and define the communication method using a secure communication protocol. (4) Developing a testbed to implement, experiment and validate the auction framework. This research will enhance radio spectrum sharing and utilization, providing more spectrum opportunities for existing and new applications. This project provides interdisciplinary research opportunities for graduate students working on the proposed research. This project incorporates research results into courses and to recruit students from underrepresented backgrounds.