用户诱导手机定位的球概率分布模型
A Spherical Probability Distribution Model of the User-Induced Mobile Phone Orientation
摘要：
本文提出了一种统计建模方法的现实生活中的用户引起的随机性，由于手机的方向不同的手机使用类型。众所周知，无线设备的辐射性能取决于其相对于用户的取向和位置。因此，现实的手机使用模型将导致更准确的天线和无线设备的空中特性测量。我们引入了基于网络接入模式的电话使用分类，例如，语音（电路交换）或非语音（分组交换）服务，以及在网络接入会话期间使用诸如有线或蓝牙手持机或扬声器电话的附件。随机电话方向，然后建模的球形冯Mises-Fisher分布为每个识别的电话使用类型。提出了一种基于个体概率分布函数和启发式权重的有限混合模型。这些模型基于从内置加速度计测量中收集的数据。我们的方法提供了一个简单的建模的用户引起的随机取向不同的手机使用类型。该模型可用于更好的手机和天线系统的设计，以及无线网络的设计和优化。
英文摘要：
This paper presents a statistical modeling approach of the real-life user-induced randomness due to mobile phone orientations for different phone usage types. As well-known, the radiated performance of a wireless device depends on its orientation and position relative to the user. Therefore, realistic handset usage models will lead to more accurate Over-The-Air characterization measurements for antennas and wireless devices in general. We introduce a phone usage classification based on the network access modes, e.g., voice (circuit switched) or nonvoice (packet switched) services, and the use of accessories such as wired or Bluetooth handsets, or a speaker-phone during the network access session. The random phone orientation is then modelled by the spherical von Mises-Fisher distribution for each of the identified phone usage types. A finite mixture model based on the individual probability distribution functions and heuristic weights is also presented. The models are based on data collected from built-in accelerometer measurements. Our approach offers a straightforward modeling of the user-induced random orientation for different phone usage types. The models can be used in the design of better handsets and antenna systems as well as for the design and optimization of wireless networks.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
