无线基站信号覆盖问题分析与解决方案

随着改革开放,社会不断发展进步,移动通信技术也在快速地发展。移动通信网络规模和容量不断扩大,手机用户数量发展惊人。但是受限于通信基站选址困难和无线通信环境的复杂性,经常有用户抱怨手机信号覆盖差。如何解决无线基站信号覆盖问题,提升用户感知度,成为通信运营商的首要任务。文章主要是分析无线基站信号覆盖差的原因,并提供相应的解决方案,为今后无线网络优化提供一些参考。     

刍议无线基站的选址原则与优化措施

无线基站的站址的选定是基站建设和无线基站网络覆盖的重要环节之一。而无线基站选址的好坏,将直接影响到无线网络的性能和普及。基站的选址可以分为三种类型:网络需求、话务需求、覆盖需求。而选址也应该根据不同的要求来进行。     

无线寻呼基站场强覆盖的分析

简述无线寻呼基站场强覆盖及影响场强覆盖的因素，通过布灵顿模型和奥村模型进行场强覆盖范围的计算。     

打造美化天线构建绿色和谐移动通信环境

随着3G建设的全面启动,为了提供高质量的网络服务,国内三大移动通信运营商提出了全覆盖、无缝覆盖的概念,不断加大网络建设的投入,以此来吸引用户。但随着无线基站、天线的增多,市区建筑物上天线林立,天线裸露在建筑物顶部。给附近的居民带来了一种不安全感,导致他们对基站产生很强的抵触情绪。大大增加了无线网络基站的选址及建设的难度。     

CDMA网络海域覆盖解决方案

简述海域覆盖的特点和必要性,并探讨了海域无线传播模型和链路预算,提出海域覆盖基站解决方案,重点分析了站址选择、天线选型、改善海域超远覆盖的技术手段、海岛基站配套建设方案等.     

CDMA基站站址获取原则与实践分析

文章主要介绍在移动网络CDMA无线基站选址过程中的原则以及问题,针对CDMA2000无线基站的站址获取进行探讨分析。以汕头地区的CDMA基站选址作为案例分析,包括典型区域无线基站选址技术,无线基站选址技术要求,表明网络结构的要求是技术上的首要考虑因素。     

基于Voronoi图的应急通信系统基站选址方法研究

根据Voronoi图的最大空心圆策略,从应急通信系统基站选址的基本原则着手,借助小区通信理想化覆盖模型确定了基站覆盖半径,在平面区域上构建出一种应急通信基站的优化选址方法。最后分析了该方法的理论意义与实际不足。     

450MHz／800MHz CDMA网络融合分析

就中国电信目前运营的两张基于cdma 2000的网络的覆盖优化来看,双网融合是大势所趋,450MHz／800MHz CDMA网络双网融合初期,在无线侧覆盖方面可主要考虑对450MHz覆盖范围内的道路及可与800MHz覆盖区相连的区域进行800MHz基站补网,不必要对450MHz覆盖区域进行800MHz基站整体补网。     

基站信号覆盖测试与问题分析

随着社会科技不断发展,移动通信技术发展一日千里,移动通信网络承载量也不断提高。但由于移动通信用户数量的不断增加,使用移动通信终端的时间和频次也不断增加,通信信号覆盖地势复杂等多种原因,影响通信信号覆盖范围。通过理论分析和实地测试,得出影响基站信号覆盖的主要因素,为基站架设选址提供参考。     

新建无线基站的若干应对具体措施

文章主要结合城市建设对无线基站覆盖的影响,从无线基站的建设因地域差异而导致选址方案不同,以及美化天线两个方面介绍了新时代条件下无线基站建设的有效应对措施。从而解决了室外建设天线影响环境美感、因辐射大而影响居民生活等等业主反对建站,以及大规模建设如何控制进度、质量等问题。     

Designing robust routing protocols to protect base stations in wireless sensor networks

A base station is the controller and the data‐receiving center of a wireless sensor network. Hence, a reliable and secure base station is critical to the network. Once an attacker locates the base station, he or she can do many damages to the network. In this paper, we examine the base station location privacy problem from both the attack and defense sides. First, we present a new attack on base station: parent‐based attack scheme (PAS). PAS can locate a base station within one radio (wireless transmission) range of sensors in high‐density sensor networks. Different from existing methods, PAS determines the base station location on the basis of parent–child relationship of sensor nodes. Existing base station protection schemes cannot defend against PAS. Second, on the basis of PAS, we propose a two‐phase parent‐based attack scheme (TP‐PAS). Our simulation results demonstrate that TP‐PAS is able to determine the base station successfully in both low‐density and high‐density sensor networks. Then, to defend against PAS and TP‐PAS, we design a child‐based routing protocol and a parent‐free routing protocol for sensor networks. Our theory analysis and experiment results show that the parent‐free routing protocol has more communication cost and less end‐to‐end latency compared with the child‐based routing protocol. Copyright © 2012 John Wiley & Sons, Ltd.     

浅析新建无线基站的几方面应对措施

随着移动通信的快速发展和人们对天线辐射抗拒心理的不断增强,无线基站的选址和建设难度越来越大,本文从天线的外观美化、射频拉远技术的应用以及联合建站三个方面详细介绍了新时期无线基站建设的有效应对措施,从而达到提高建站效率和质量,降低建站成本的目的.     

无线基站选址原则与实践

本文主要介绍了在无线基站选址过程中的总体原则以及实践经验分析.     

全球移动通信基站设备及器件市场现状和发展分析

从全球无线通信市场需求出发,通过产业链上下游细分行业的关联分析法,分析了全球通信基站设备的现状和发展趋势以及对应相关器件市场的规模和投资空间（针对射频金属元器件）,识别出其中的细分市场并预测其规模,为移动通信产业链方面的投资和市场分析提供了一定的参考模型和依据。     

Optimal base station selection based on dynamic programming for reprogramming in mine wireless network

The nodes of large-scale wireless network which widely used in safety-critical systems often update new code,the way of wireless reprogramming is efficiency and flexibility.The problem of selecting the optimal base station when nodes uniformly distributed in mine wireless network environment and all other nodes were reprogrammed efficiency.Firstly,the model of base station selecting was established by covering process of reprogramming.Then the problem was transformed into solving the minimum of longest non-cyclic path between node and base station in undirected circulant graph.Finally,the optimal algorithm based on dynamic programming which included optimal substructure and overlapping subproblems was proposed.Numerical analysis and experimental results show that the time consumption of proposed algorithm is more stable than other optimal algorithm when the complexity of network is increased sharply.     

一种基于C/S架构的基站选址工具

为满足无线通信网络中选站工作的需要,提出一种基于C/S 架构的基站选址工具.该工具可对当前地点周围六邻站的距离和场强进行自动测量和计算,可有效提高基站选址的准确度和工作效率.     

基于四旋翼无人机的人员体征监测系统

研究了一种全新的生命体征监测系统,为野外活动人员提供快速的救援保障。系统整合四旋翼无人机、摄像头、无线基站、测控站、监控终端和生命体征检测设备,在四旋翼无人机上安装无线基站,实现无线监测所有队员的生命体征信息和现场情况。基站安装在无人机上,不受地形的影响,解决了传统地面安装基站的局限性,并提高了无线信号的覆盖范围。     

基于电磁环境大数据的智能基站布设方法

基站选址优化问题是移动通信中的研究热点,一个好的基站选址方案不仅能够节约资源,而且可以提高用户的通信体验。然而,基站布设常面对的是一个多参数、多约束、非线性的复杂问题,难以通过传统的优化方法进行求解。本文提出一种基于大数据的智能基站布设方法,根据实测电磁环境大数据构建基于深度学习的电波传播模型,使传播模型更加精确;采用空间自适应学习方法,在传播模型的基础上构建基站选址优化模型。通过在每次迭代过程中以较小概率选择性能较差的基站布设点,从而避免算法陷入局部最优。     

Methods for optimizing the location of base stations for indoor wireless communications

When designing wireless communication systems, it is very important to know the optimum locations for the base station antennas. In this paper, a model has been developed to set up an optimization problem, the solution of which provides the information for the optimum location of the base station antennas particularly for an indoor environment. Several methods for the optimization of the cost function are presented and the final results are compared with each other. This methodology can be applied for the design and planning of the location of base station antennas for indoor wireless communication systems. Two numerical examples have been presented to illustrate the application of this methodology.     

BSLPSDN: Base station location privacy via software-defined networking (SDN) in wireless sensor networks

Base station's location privacy in a wireless sensor network (WSN) is critical for information security and operational availability of the network. A key part of securing the base station from potential compromise is to secure the information about its physical location. This paper proposes a technique called base station location privacy via software-defined networking (SDN) in wireless sensor networks (BSLPSDN). The inspiration comes from the architecture of SDN, where the control plane is separated from the data plane, and where control plane decides the policy for the data plane. BSLPSDN uses three categories of nodes, namely, a main controller to instruct the overall operations, a dedicated node to buffer and forward data, and lastly, a common node to sense and forward the packet. We employ three kinds of nodes to collaborate and achieve stealth for the base station and thus protecting it against the traffic-analysis attacks. Different traits of the WSN including energy status and traffic density can actively be monitored by BSLPSDN, which positively affects the energy goals, expected life of the network, load on common nodes, and the possibility of creating diversion in the wake of an attack on the base station. We incorporated multiple experiments to analyze and evaluate the performance of our proposed algorithm. We use single controller with multiple sensor nodes and multiple controllers with multiple sensor nodes to show the level of anonymity of BS. Experiments show that providing BS anonymity via multiple controllers is the best method both in terms of energy and privacy.