移动IPv6中QoS的实现

现有的网络服务质量(QoS)有两大模型:集成服务(Intserv)和区分服务(D iffserv)。这两种服务都是针对静态环境(固定主机和固定路由)设计的,对于移动通信网络都不能完全适用。本文结合集成服务和区分服务的优点,提出了一种新的双平面的三重QoS体系,并描述了这一体系对端到端QoS的实现。最后通过实例概述了QoS体系的整体流程,扩展了移动IPv6(M IPv6)信令中的绑定升级(BU)、绑定请求(BR)、绑定确认(BA)三个选项。     

移动互联网资源管理中的接纳控制

文章围绕移动性问题探讨了移动互联网中的资源管理，包括网络层的资源管理和无线资源管理，详细讨论了两种资源管理中的接纳控制技术。     

移动IPv6环境中集成RSVP信令机制

本文针对在移动无线IP网络中运行RSVP信令协议存在的问题，提出了一种把RSVP信令集成于Ipv6数据包头扩展字段的方案，以减少切换过程中资源预留路径建立的时间，为移动节点提供了服务质量保障。并将此方案和原始RSVP方案在资源预留时间和信令负荷方面进行了性能比较。     

移动互联网时代电信运营商的商业模式——能力开放

首先介绍移动互联网的主要业务形式,其次从电信运营商的产业实践和企业基因模型的理论分析两个层面,探讨了在移动互联网时代电信运营商的产业定位和商业模式选择问题,最后,就能力开放的商业模式的实施提出了相关建议。     

IPv6将进一步推动移动Internet的发展

介绍了目前Internet中采用的IP地址的局限性，说明为了促进移动Internet的发展，必须尽快采用IPv6地址，展望了IPv6的新进展及其发展中亟待解决的问题。     

Fast RSVP: Efficient RSVP Mobility Support for Mobile IPv6

In recent years, with the development of mobile communication technologies and the increase of available wireless transmission bandwidth, deploying multimedia services in next generation mobile IPv6 networks has become an inevitable trend. RSVP (resource reservation protocol) proposed by the IETF is designed for hardwired and fixed networks and can not be used in mobile environments. This paper proposes a protocol, called Fast RSVP, to reserve resources for mobile IPv6. The protocol adopts a cross-layer design approach where two modules (RSVP module and Mobile IPv6 module) at different layers cooperate with each other. Fast RSVP divides a handover process with QoS guarantees into two stages: (1) setup of the resource reservation neighbor tunnel and (2) resource reservation on the optimized route. It can help a mobile node realize fast handover with QoS guarantees as well as avoid resource wasting by triangular routes, advanced reservations and duplicate reservations. In addition, fast RSVP reserves “guard channels” for handover sessions, thus greatly reducing the handover session forced termination rate while maintaining high performance of the network. Based on extensive performance analysis and simulations, Fast RSVP, compared with existing methods of resource reservation in mobile environments, performs better in terms of packet delay and throughput during handover, QoS recovery time after handover, resource reservation cost, handover session forced termination rate and overall session completion rate.     

移动互联网发展分析

介绍移动互联网的发展历程,深入分析影响移动互联网发展的主要因素和发展移动互联网的意义,提出移动互联网发展中面临的问题和建议。     

面向移动互联网的业务能力开放技术标准综述

移动互联网时代,创新能力和技术尤为重要。为满足用户业务使用需求,互联网商和电信运营商均聚焦业务能力开放技术,将典型业务能力对外开放,实现该领域商业模式的创新。文章针对面向移动互联网的业务能力开放技术国际国内标准进行系统地研究,尤其对开放接口进行了详尽的分析阐述,从而为电信运营商业务开展提供技术参考。     

从固定互联网到移动互联网

介绍互联网的体系架构及所面临的移动性支持等挑战,阐述了为应对移动性的挑战,互联网目前所做的一些工作,最后介绍了移动互联网对互联网架构和应用的影响。     

谈谈上海大唐移动网络优化服务

介绍了大唐公司为改善移动通信网络服务质量而提供的移动网络优化服务。     

基于IPv6的新型移动协议研究

首先介绍基于IPv6的新型位置无关移动协议LIN6，重点讨论LIN6支持节点移动通信的原理，然后讨论LIN6与Mobile IPv6的区别，最后给出对LIN6的改进建议。     

移动互联网业务在LTE时代的发展分析及业务建模

LTE时代的到来为移动互联网业务的发展提供了新的平台,也给运营商带来巨大的挑战。文章探讨了移动互联网业务在LTE时代的发展趋势,并且针对不同类型业务的业务特征进行分析和理论建模。通过对LTE网络的业务构成、用户行为、业务特征等方面的研究,构建LTE业务总体模型,为LTE网络部署提供有效支撑。     

移动互联网中的资源管理和服务质量控制

文章分析了移动互联网面临的挑战，着眼于宽带、超高速、可移动的多媒体网络技术，从两个方面探讨了移动互联网中的资源分配与服务质量控制问题，即无线传输过程中的服务质量保证和越区切换过程中的服务质量控制。     

Analysis and Evaluation of Mobile IPv6 Handovers over Wireless LAN

In this paper, we analyze the IPv6 handover over wireless LANs. Mobile IPv6 is designed to manage mobile nodes movements between wireless IPv6 networks. Nevertheless, a mobile node cannot receive IP packets on its new point of attachment until the handover completes. Therefore, a number of extensions to Mobile IPv6 have been proposed to reduce the handover latency and the number of lost packets. We focus on Fast Mobile IPv6 which is an extension of Mobile IPv6 that allows the use of L2 triggers to anticipate the handover. We compare the handover latency in four specific cases: basic Mobile IPv6, the forwarding method of Mobile IPv6, the Anticipated method, and the Tunnel-Based Handover. The results of the handover latency are calculated with the L2 properties of IEEE 802.11b. In particular, we take into account the L2 handover for different configurations of the wireless network.     

移动互联网业务无线特征识别及优化方法研究

首先分析了移动互联网业务特征及对无线网络的影响,并依据业务模型对无线小区进行分类。首次提出了以无线网络性能统计指标进行小区业务分类识别的方法,结合现网实例进行了验证,并给出了移动互联网应用中典型的小数据业务优化解决方案。     

Internet综合业务模型和资源预留协议RSVP

简要介绍了 Ｉｎｔｅｒｎｅｔ 综合业务模型的基本组成和实现机制， 并对 Ｉｎｔｅｒｎｅｔ 综合业务模型中提出的资源预留协议 Ｒ Ｓ Ｖ Ｐ 进行了简要说明和分析。     

面向移动互联网的下一代综合业务平台

移动互联网增值业务快速发展,对传统的业务定义方式提出了挑战,3GPP等标准组织从业务定义转向了业务能力的定义,并通过业务能力的标准接口开放支撑第三方移动互联网增值业务的发展。对3GPP、SDP、OMA等标准组织对业务网络架构体系分析入手,阐述了为何引入业务网络的概念,并结合标准的分析,对业务网络的体系架构进行了研究。     

DSP:移动互联网的动力核心

本文介绍DSP的技术发展和DSP对移动互联网的建设发展、完善的强大推进作用。     

移动互联技术助力博物馆社会化服务

移动互联网技术和智能手机发展给博物馆带来了新的契机,同时也给观众带来了新颖独特的体验,利用移动互联网延伸博物馆的社会教育服务功能,科技与文化相结合,将文化送到公众手上,科技助力文化传播可以让文化更亲民,让文化服务更惠民。借助移动互联网技术,利用3G/4G手机、PAD等各类移动终端,运用最新的掌上微游、数字导览、知识图谱、社交互动等方式打造可以随身携带的博物馆。     

RSVP Extensions for Real-Time Services in Hierarchical Mobile IPv6

The Mobile IPv6 (MIPv6) provides many great features, such as sufficient addressing space, mobility, and security; MIPv6 is one of the most important protocols for next generation mobile Internet. Simultaneously, with the rapid improvement of wireless technologies, the real-time multi-media IP services such as video on demand, videoconference, interactive games, IP telephony and video IP phone will be delivered in the near future. Thus, to furnish accurate QoS for real-time services is one of the most important thing in the next generation mobile Internet. Although RSVP, which is a resource reservation protocol, processes signaling messages to establish QoS paths between senders and receivers, RSVP was originally designed for stationary networks and not aware of the mobility of MNs. Therefore, this paper proposes a novel RSVP extension to support real-time services in Hierarchical Mobile IPv6 (HMIPv6) environments. For intra-site mobility, the concept of QoS Agent (QA) is proposed to handle the RSVP QoS update messages and provide the advanced reservation models for real-time services. For inter-site mobility, IP multicast can help to invite inter-site QAs to make pre-reservation and minimize the service disruption caused by re-routing the data path during handover. Simulation results show that the proposed scheme over HMIPv6 is more suitable for real-time services than the famous RSVP tunnel-based solution.