Abstract: After a long period of development, Wireless Sensor Network（WSN） has made great progress and has been widely used in many fields. But the researches of WSN encounter some challenges which affect the effectiveness of the application. Software-Defined Network（SDN） is a new paradigm of network architecture, the main idea of which is decoupling control plane from the data plane. SDN provides a new direction for the development of network infrastructure. In order to enhance the technical effectiveness of WSN, the SDN architecture is introduced into the WSN, so Software-Defined Wireless Sensor Network（SDWSN） is formed. Based on the current researches of software-defined wireless sensor network, this paper expounds the current status of WSN and SDN firstly. Then, the paper summarizes the current research progress and feasible technical solutions in SDWSN. Finally, it discusses future trends of technological development and gives out some research direction in this field.

Key words: Software-Defined Network（SDN）, Wireless Sensor Network（WSN）, Software-Defined Wireless Sensor Network（SDWSN）

摘要： 无线传感器网络（Wireless Sensor Network, WSN）经过长时间的发展，技术上已经有了很大进步，并广泛应用于很多领域，但其仍存在一些技术难点，影响应用效果。软件定义网络（Software-Defined Network, SDN）是一种新的网络架构，它采用了数据平面与控制平面解耦的思路，提供了网络架构发展的新方向。为了提升WSN的技术有效性，SDN架构被引入到WSN领域中，形成了新的软件定义无线传感器网络（Software-Defined Wireless Sensor Networks, SDWSN）。在分析软件定义无线传感器网络现有研究成果的基础上，阐述了WSN及SDN的发展现状；结合目前的研究进展，综述了SDWSN可行的技术方案；探讨了SDWSN未来的研究方向及发展趋势。

关键词: 软件定义网络, 无线传感器网络, 软件定义无线传感器网络