Underwater sensor networks localization based on mobility-constrained beacon

Wireless Networks - Node localization is one of the key technologies of Underwater Sensor Networks (UWSN). Because of the unique ocean environment conditions, beacon nodes are difficult to deploy...     

A robust indoor localization method with calibration strategy based on joint distribution adaptation

Wireless Networks - Device-free localization (DFL) systems have aroused extensive attention because it is more convenient than device-enabled localization systems, and fingerprint-based...     

DE 2: localization based on the rotating RSS using a single beacon

Wireless Networks - Wireless localization technology has become an important research area of pervasive computing applications. This paper presents $$DE ^{2 }$$ (direction estimation and distance...     

An improved Cuckoo search localization algorithm for UWB sensor networks

Wireless Networks - Conventional Cuckoo search (CS) localization method can obtain good positioning results that are highly accurate and robust. However, its positioning performance is constrained...     

DR-NET: a novel mobile anchor-assisted localization method based on the density of nodes distribution

Wireless Networks - Considering the existing mobile anchor-assisted localization methods generally adopt a traverse strategy for the localization region, leading to an unnecessary increase in path...     

FISCP: fine-grained device-free positioning system for multiple targets working in sparse deployments

Wireless Networks - Device-free localization has long been playing a key role in the anti-intrusion applications. However, current multi-target localization solutions mainly use uneconomical...     

Correlating mobility with social encounters: distributed localization in sparse mobile networks

Wireless Networks - Most existing connectivity-based localization algorithms require high node density which is unavailable in many large-scale sparse mobile networks. By analyzing large datasets...     

A new patch and stitch algorithm for localization in wireless sensor networks

Wireless Networks - Patch and stitch is a technique used for localization in wireless sensor networks. It combines the accuracy of centralized schemes with the computational efficiency of...     

Non-coherent localization with geometric topology of wireless sensor network under target and anchor node perturbations

Wireless Networks - This paper investigates non coherent localization of an unknown target node in presence of a symmetrically opposite mirror node while the transmitter anchor node is perturbed...     

基于射频识别的室内定位技术综述

用于室内定位的技术主要包括红外传播技术、802.11 WLAN技术、无线传感器网络(WSNs)、超声波定位。而射频识别(RFID)技术依赖其合理的系统造价、良好的定位精确度、较强的抗干扰能力、无接触通信以及RFID射频标签的部署、携带便捷等诸多优点,正逐渐应用于室内追踪定位中。本文从用于室内定位的RFID标签的角度出发,将当前主要的RFID室内定位技术分为无源、有源和半无源RFID定位3类,并对每一类中涉及到的主要定位算法的当前发展状况及其优缺点做了详细分析。     

Precision of RSS-Based Localization in the IoT

International Journal of Wireless Information Networks - Currently, the most popular indoor geolocation technique used in smart device is the RSS-based Wi-Fi localization. The general accuracy of...     

Sparse recovery formulation for secure distance-based localization in the presence of cheating anchors

Wireless Networks - Secure localization in the presence of cheating anchors is a critical issue in wireless sensor networks, where compromised anchors attempt to falsify the measured distances in...     

Mobile beacon based range free localization method for wireless sensor networks

Wireless Networks - The existing mobile beacon based range free localization method has two basic problems: (1) the accuracy of position estimation depends on closer beacon broadcasting intervals...     

Optimal sensor placement for source localization based on RSSD

Wireless Networks - Source localization based on the received signal strength (RSS) has received great interest due to its low cost and simple implementation. In this paper we consider the source...     

Reducing the site survey using fingerprint refinement for cost-efficient indoor location

Wireless Networks - Recently, RSS fingerprint-based location has been considered as a low-complexity solution for indoor localization. However, constructing a fingerprint map requires a great...     

无线传感器网络中一种基于定向天线的节点定位算法

节点定位问题是无线传感器网络中的一个基本而非常重要的问题。已有的定位算法大致可以分为两类:基于测距的和无需测距的。基于测距的定位算法需要额外硬件的支持,成本较高,不适用于大规模的传感器网络;无需测距的定位算法不需要额外硬件的支持,是解决传感器网络节点定位问题的一个较为经济适用的方法。本文提出了一种新的基于定向天线的无需测距的分布式定位算法。其主要原理在于利用定向天线确定邻居节点之间的相对位置,然后判断未知节点是否在锚节点构成的三角形内。仿真研究表明,提出的算法是有效的,能够取得较好的定位精度。     

分布式交互方向拉格朗日乘子声源定位算法

如何实现高效的分布式声源定位是无线传感器网络研究的热点。通过一种基于声源信号能量的分布式声源定位算法,采用交互方向的拉格朗日乘子方法将最大似然声源定位问题拆分到单个传感器节点,通过桥接传感器节点实现传感器节点之间的信息融合。由于采用声源信号衰减模型,交互方向拉格朗日乘子方法中的最优化目标函数成为非凸函数,导致定位算法容易陷入局部最优,为此提出了多重网格搜索方法。仿真结果表明,新算法与现有的分布式声源定位算法相比,具有可并行实现,可应用于任意网络拓扑,不易陷于局部最优等优点。     

Self-heat controlling energy efficient OPOT routing protocol for WBAN

Wireless Networks - Recent technological advancements in miniaturization of sensor and wireless communication lead to development of Wireless Body Area Networks (WBAN). It is similar to Wireless...     

基于压缩感知的无线传感器网络多目标定位算法

目标定位是无线传感器网络的重要应用场景。该文提出了一种将压缩感知应用于无线传感器网络多目标定位的方法,把基于网格的多目标定位问题转化为压缩感知问题。应用多分辨率分析的思想,设计了迭代回溯的压缩感知算法,该方法的特点是可同时进行多目标定位,并且大大减少了网络通信的数据量从而延长网络寿命,代价是融合中心的算法复杂度的增加。仿真结果显示,采用迭代回溯算法定位精度提高了50%以上,具有较好的多目标定位效果。     

Machine learning-based approaches for user association and access point selection in heterogeneous fixed wireless networks

Wireless Networks - Fixed Wireless Networks (FWNs) provide an alternative means for internet connectivity in rural and harsh propagation environments. Intensive technical expertise is therefore...