移动与固定融合网络环境下位置业务运营探讨

LBS已经成为当今移动和互联网领域的热点应用,本文在分析移动LBS关键问题的基础上,提出了移动与固定融合网络环境下的LBS业务运营基本架构及其功能要求,为LBS业务推广提供发展思路和技术解决方案.     

LBS定位技术分析比较及其系统设计

LBS服务已成为移动运营商的一个新的利润增长点。定位技术是LBS中的关键技术,不同的定位技术决定了不同的定位精度,对现有网络的适应能力以及运营投入成本,同时这些定位技术对网络的要求也有一定的限制。本文从定位性能,方式等方面对目前主要的定位技术作了分析比较,并针对目前主流的浊给 定位技术提出了其在CDMA网络里实现的体系结构。     

3G网络中LBS的分析与发展思路

文章首先简单介绍了LBS和定位技术,并根据LBS的现状分析了影响LBS开展的几个因素。最后对LBS在3G网络中的发展进行分析并给出了一些建议。     

网络中心企业服务的安全体系结构研究

论文分析了支持网络协同、分布联网和动态资源调整能力的网络中心企业服务所面临的安全挑战,并在初步探讨的基础上,提出了一种安全体系结构,并对其能够提供的重要利益进行了阐述。     

提供端到端QoS的带宽代理体系结构

随着Internet规模的不断增大。各种各样的网络服务争相涌现，IP QoS正成为业界关注和研究的热点。为集中管理和控制IP网络的带宽资源，引入了带宽代理(BB)体系结构。在深入研究TEQUILA项目成果的基础上，扩展了BB的体系结构，增加了域间交互、计费、安全管理和在线约束选路等功能，使之能够满足端到端的QoS需求.     

3G网络中LBS的分析与发展思路

章首先简单介绍了LBS和定位技术，并根据LBS的现状分析了影响LBS开展的几个因素。最后对LBS在3G网络中的发展进行分析并给出了一些建议。     

移动社会网络中基于位置的个性化餐馆推荐建模研究

移动网络中基于位置的服务(Location-Based Service,LBS)是用于移动设备的典型服务。文章总结了LBS推荐系统的主要特点及其应用,融合情景信息提出分阶段的LBS推荐系统模型。在冷启动阶段,根据用户历史数据基于规则推荐,预测新用户兴趣。当获得大量的历史用户反馈和交互数据,采用基于用户和情景的协同过滤推荐算法来提高推荐系统的精度,并修改规则库。实验表明该推荐模型能提高推荐精度并实时推荐。     

第三代移动通信网络的SLM体系结构及实现

基于第三代移动通信网络的业务管理特性，提出了第三代移动通信网络的SLM的功能体系结构和物理体系结构，设计并实现了一个第三代移动通信网络的SLM原型系统。     

从SMS、MMS到LBS--移动增值服务的发展趋势

文章首先对移动增值服务(VAS)及其现状进行了简介,并预测位置服务(LBS)是未来最具 吸引力的VAS业务;然后阐述了LBS的起源、价值链结构和应用类型。第三部分剖析LBS的层次体系 结构,第四部分论述了LBS的计算模式。最后指出LBS规模化发展需要解决的几个关键问题和对策。     

基于SOA的信息资源集成研究

研究了SOA模型,基于SOA构建了一种通用信息资源集成体系结构,重点讨论了该体系结构的服务管理实现,本文所构建的信息资源集成体系结构具有资源共享、信息检索强等特点且具有通用性。     

Towards a Mobile Multimedia Age – Location-Based Services: A Case Study

Japan has been at the leading edge of location-based services (LBS) deployment using wireless assisted GPS technology. These services, which include personal security, navigation, gaming, security and fleet management, have experienced tremendous growth over the last few years. By looking at the factors contributing to this successful growth, LBS can be deployed in Europe with equal success. In addition to success factors, it is important to look at the underlying wireless network technology and its deployment impact, since Japanese deployments are based on synchronous 3G whereas Europe's likely deployments will be based on asynchronous UMTS. Recognizing the implication of both these items in accordance with SnapTrack's vision of UMTS LBS deployment affords a service provider a better opportunity to successfully introduce LBS and drive service revenue. This revised version was published online in August 2006 with corrections to the Cover Date.     

移动环境中数据分析与挖掘新技术的研究

数据分析与挖掘技术是构建经营分析系统的关键技术,本文主要介绍了三种新的数据分析与挖掘技术:数据流技术、移动对象技术和基于位置服务的技术,数据流技术能够解决经营分析系统在实时处理动态产生的海量数据上的不足;移动对象技术可以使得经营分析系统对移动用户的时空数据加以利用,从而提供多种新业务及更好的决策支持;而基于位置服务技术将使得经营分析系统对开展定位相关业务提供决策支持.     

位置服务信息安全防护

随着无线通信技术和智能移动终端的快速发展,基于位置的服务(LBS)在军事、交通、物流等诸多领域得到了广泛应用,它能够根据移动对象的位置信息提供个性化服务。在人们享受各种位置服务的同时,移动对象个人信息泄露的隐私威胁也渐渐成为一个严重的问题。为移动用户提供位置服务的同时,保护移动用户的位置隐私也至关重要。本文就位置业务隐私保护技术和位置业务隐私管控手段进行了探讨。     

移动位置服务应用发展研究

3G时代的到来为移动增值业务提供了广阔的发展空间,移动位置服务以其移动性、实用性、随时性和个性化的特点,成为最具发展潜力的移动增值业务之一。本文从国内外移动位置服务应用模式及发展历程出发,对位置服务的应用特点、产业发展趋势以及发展中的若干问题进行分析,给出针对国内电信运营商位置服务业务的发展建议。     

移动互联网定位业务与技术研究

分析了几种重要的移动定位技术,包括卫星辅助定位技术、基于网络的定位技术和位置信息匹配式定位技术,分析了现阶段移动互联网定位业务的业务形态和商业模式,最后提出了未来的发展方向和监管建议。     

cdma2000 1x网络中引入新的智能业务——定位业务

本文介绍了定位业务的起源和发展、网络结构、相关技术，以及基于定位系统提供的相关服务。     

Applications of location–based services: a selected review

This article reviews a selected set of location–based services (LBS) that have been published in the research literature, focussing on mobile guides, transport support, gaming, assistive technology and health. The research needs and opportunities in each area are evaluated and the connections between each category of LBS are discussed. The review illustrates the enormous diversity of forms in which LBS are appearing and the wide range of application sectors that are represented. However, very few of these applications are implemented pervasively on a commercial basis as this is still challenging technically and economically.     

A survey of ‘young social’ and ‘professional’ users of location-based services in the UK

The objective of this study was to assess the response to location-based services (LBS) by three key demographic groups within the United Kingdom. This study took the form of a survey of relevant demographics, attitudes and consumer behaviour undertaken via a web-based survey. Results are based on over 1200 respondents, filtered and segmented into three demographic groups who are typically early adopters of new technology. There were positive attitudes towards a range of LBS, with the major exception being location-based advertising. There were mixed views towards location-based gaming and safety camera information. There were low levels of awareness of many services. The levels of use were typically under 20% for all types of LBS.     

Irreplaceable: the role of place information in a location based service

Location is no longer only a backdrop of mobile device usage, as current location-based services (LBS) can customise content based on a user's geographic position. The application Foursquare has emerged as a leading commercial LBS. One of the first LBS to reach a large, global audience, Foursquare features geosocial networking, place listings, user reviews and recommendations. With physical place as the organising concept of the application, Foursquare combines locative technology with social media features to give users the ability to interact with place by writing place reviews, uploading photos or creating place listings into its database. The application enables users to access, create and share geographically relevant information in ways that would have been difficult before the advent of locative media. To explore how people were using LBS in relation to their places, a small-scale ethnographic study of Foursquare users was conducted using interviews, remote observation and contextual inquiry. The findings of the study indicate that Foursquare users sought, appreciated and made creative use of the application's geographically relevant place information.     

Identification of preconditions for an emerging mobile LBS market

Location information has become a very important horizontal service component for a wide range of vertical mobile applications. This enabled multiple innovative mobile location-based services (LBS) that range from conventional mapping and navigation services featuring millions of points of interest (POI) to location-aware content delivery and mobile social networking. Providing a whole new world of opportunities for device and application vendors, network operators, content providers and prospective consumers, mobile LBS have potential to become one of the core businesses in today's mobile arena. However, the future of this market is not fully transparent due to several uncertainties associated with a mixture of technologies, service demand, consumer attitude, privacy aspects of using LBS and a complex value network. In this study, we identify and analyse a set of preconditions for an emerging mobile LBS market in its present evolution phase. The history of LBS motivates us to take a closer look at this emerging market and try to understand what the main reasons for LBS initial failure have been and what is still missing in this market today to emerge successfully. To focus on the most relevant issues, we construct our own research framework containing three main dimensions: technological advance and standardisation, value network and value proposition. Within these dimensions, we compare the early state of mobile LBS with the present situation and analyse the key factors presently crucial for LBS proliferation.