We propose an optimization framework to perform resource allocation in virtual sensor networks. Sensor network virtualization is a promising paradigm to improve flexibility of wireless sensor networks which allows to dynamically assign physical resources to multiple stakeholder applications. The proposed optimization framework aims at maximizing the total number of applications which can share a common physical network, while accounting for the distinguishing characteristics and limitations of the wireless sensor environment (limited storage, limited processing power, limited bandwidth, tight energy consumption requirements). The proposed framework is finally applied to realistic network topologies to assess the gain involved in letting multiple applications share a common physical network with respect to one-application, one-network vertical design approaches.
翻译:本文提出了一种用于虚拟传感器网络中资源分配的优化框架。传感器网络虚拟化是一种有前景的范式,能够提升无线传感器网络的灵活性,允许将物理资源动态分配给多个利益相关方应用。所提出的优化框架旨在最大化可共享同一物理网络的应用总数,同时考虑无线传感器环境的独特特征和限制(有限的存储空间、有限的处理能力、有限的带宽以及严格的能耗要求)。最后,该框架被应用于真实的网络拓扑,以评估让多个应用共享同一物理网络相较于“一个应用一个网络”的垂直设计方法所带来的增益。