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1.
Analysis of the urban/rural broadband divide in Canada: Using GIS in planning terrestrial wireless deployment 总被引：3，自引：0，他引：3
M. Sawada Daniel Cossette Barry Wellar Tolga Kurt 《Government Information Quarterly》2006,23(3-4):454
Millions of Canadians residing in Canada's northern, isolated, rural, and remote communities do not have broadband Internet access. This situation has led to a national “broadband divide.” That is, the deployment of wireline broadband is very limited in Canada's northern, isolated, rural, and remote areas because of the significant expense of installation and maintenance of the wired infrastructure needed to reach dwellings in these locations.Terrestrial broadband wireless technology, on the other hand, does not entail the same kind of physical infrastructure. As a result, there are dramatic changes in how spatial considerations affect the provision of broadband Internet services (BIS) to areas beyond the urban zone. In particular, the spatial question is now focused on assessing the capacity for different technological solutions to reach profitable population bases, and brings to the forefront organizations that are developing non-line-of-sight (NLOS) technologies that would permit wireless Internet access over much greater distances than current solutions.We begin this paper by establishing the importance of broadband connectivity to Canada's northern, isolated, rural, and remote communities. This discussion comments on the role of the Government of Canada in the provision of broadband connectivity to residents of these communities, and outlines the current regulatory issues that govern wireless services and policy formulation.The second part of the paper illustrates the use of geographic information system (GIS) approaches in the study of wireless broadband planning and deployment. Case study findings suggest that GIS applications can make a significant contribution to the analysis of wireless deployment planning, to the understanding of the relationships between wireless signal sources and consumers, and to the spatial configuration of terrestrial wireless broadband networks. We conclude the paper by discussing how the GIS approach employed could be used to inform the public policy process with regard to increasing access to broadband Internet services in all regions of the country, and thereby providing the opportunity for all Canadians, regardless of location, to fully participate in the Information Society. 相似文献
2.
单音干扰是WiMAX通信系统中的一种常见干扰,在基带处理前引入单音干扰算法能有效抑制单音干扰,提高系统性能。本文提出了一种基于Notch滤波器的抑制固定单音干扰算法及其FPGA逻辑实现方法。文中首先阐述了设计思想,然后讨论Notch滤波器原理及设计方法,最后给出该算法在FPGA中的实现及滤波效果评估。评估测试结果表明该算法不仅可以有效抑制WiMAX通信系统的单音干扰而且易于FPGA逻辑实现。 相似文献
3.
曹路 《广东技术师范学院学报》2008,(6)
IEEE802.16在上行链路采用时分多址接入方式,并引入了按需分配多址接入方式用于资源竞争与预留,这使得各用户站(SS)之间存在冲突,导致系统性能下降。本文根据I EEE802.16协议推荐采用的冲突解决算法,利用二维马尔可夫链描述二进制退避算法,分析了吞吐量与延时,并通过归一化处理,定义了代价函数。通过仿真,获得了系统性能达到最优时,最佳初始退避窗口值与用户数的关系。 相似文献
4.
此文介绍了目前较热门的几种宽带无线接入,并比较分析了802．11b、802．16e与McWiLL技术优劣以及和3G的竞争互补关系,提出了在宽带无线接入基础上各种网络融合的前景。 相似文献
5.
随着全球通讯领域宽带业务的蓬勃发展,出现了具有4G象征的WiMAX宽带技术。介绍了WiMAx的概念、技术特点及支持的业务类型,并对其未来发展方向及应用进行了展望。 相似文献
6.
陈辉 《廊坊师范学院学报(自然科学版)》2012,12(4):43-45
介绍了基于LTE和WiMAX的4G网络技术的特点,从技术和市场两个角度分析了LTE和WiMAX两种技术之间的关系。 相似文献
7.
文章在分析ViMAX技术特点的基础上,结合现有的Wi-Fi和3G网络各自的特点,给出了相应的混合组网模式,融合三网各自的技术优势,将更有利于宽带无线业务的发展。 相似文献
8.
白绍光 《内蒙古科技与经济》2009,(15):95-96
文章分析了WiMAX技术及其优势,根据WiMAX本身的特点分析了WiMAX在无线通信领域的应用前景。 相似文献
9.
王敏奇 《宁德师专学报(自然科学版)》2006,18(4):421-423
通过对有线网络环境下的办公自动化的简单分析,指出由蓝牙技术、W iF i技术和W iMAX技术构建的无线网络与办公自动化相结合是办公自动化的发展趋势. 相似文献
10.
WiMAX Mesh网络中的3步握手时间影响数据包的延迟和带宽请求次数.固定3步握手参数会给网络带来扩展性问题,且不利于满足用户不同的QoS需求.针对上述问题提出具有QoS保障的动态握手参数调整方案QoSDx,综合节点自身和2跳邻居节点的数量、优先级和3步握手参数等动态调整节点的握手时间.仿真实验表明,QoSDx在不同规模网络下均能提高网络总体性能.IEEE 802.16标准中定义的4种业务流的吞吐率平均提升10%左右. 相似文献