This is a simulator written in Tcl to simulate a network node carrying GSM and GPRS traffics with QOS mechanisms. The payload type including circuit-switched voice, VoIP and web traffic, and the performance including packet drop, delay can be analyzed. The implemented QOS mechanism is DiffServ, with 4 RED queues for different services with different priorities.
标签： simulator carrying simulate traffics
上传时间： 2014-01-01
上传用户：1583060504
CCIE R&S路由与交换 CCIE SP 服务提供商 认证考试指南 本书全面系统的介绍了Cisco CCIE路由与交换方向以及服务提供商方向考试的所有知识点。全书共分为 8 个部分。分别介绍了CCIE笔试和实验室考试中所用到的基础网络知识，各种路由协议，LAN交换，城域网，MPLS，QOS及组播等。 本书按照Cisco CCIE路由与交换及服务提供商的考试大纲写成，针对目前SP服务提供商考试资料相对匮乏的情况，整理出这本认证指南，其目标是为了使准备CCIE认证的考生获得更方便的资料。 本书亦适合各类网络工程师和网络设计者作为工作时的参考手册。
上传时间： 2013-12-18
上传用户：sqq
嵌入式无线路由系统openwrt的web配置工具，包括无线配、路由配、dhcp、ip地址、防火墙、QOS等功能的配置
上传时间： 2017-09-20
上传用户：源弋弋
Complete coverage of all four CCNP exams: ? EIGRP, OSPF, IS-IS, and BGP ? Optimizing routing ? IP multicast ? IPv6 ? VLAN implementation ? Spanning Tree ? InterVLAN routing ? Layer 3 redundancy ? Wireless LANs ? VoIP in campus networks ? Campus network security ? Frame-mode MPLS ? IPsec ? Cisco device hardening ? Cisco IOS? threat defenses ? Cisco VoIP ? QOS and AutoQOS ? Wireless scalability
标签： Optimizing Complete coverage routing
上传时间： 2017-09-26
上传用户：cuibaigao
本文提出了一种自适应的软频率复用（SFR）方案以改善小区边缘的目标 性能以及整个小区的吞吐量。所提出的方案是有效的，灵活的。 具体而言，我们分别分析了连续的和分布式子载波分配方案，并且使用QOS 动态地调整子载波功率电平，从而实现所需的吞吐量。
标签： sfr Interference mitigation ICIC
上传时间： 2015-11-23
上传用户：wang1234
This thesis is about wireless communication in shared radio spectrum. Its origin and motivation is ideally represented by the two quotations from above. In this thesis, the support of Quality-of-Service (QOS) in cognitive radio networks is analyzed. New approaches to distributed coordination of cognitive radios are developed in different spectrum sharing scenarios. The Wireless Local Area Network (WLAN) 802.11 proto- col of the Institute of Electrical and Electronics Engineers (IEEE) (IEEE, 2003) with its enhancement for QOS support (IEEE, 2005d) is taken as basis. The Medium Access Control (MAC) of 801.11(e) is modified to realize flexible and dynamic spectrum assignment within a liberalized regulation framework.
标签： Quality-of-Service Distributed Support
上传时间： 2020-05-27
上传用户：shancjb
Providing QOS while optimizing the LTE network in a cost efficient manner is very challenging. Thus, radio scheduling is one of the most important functions in mobile broadband networks. The design of a mobile network radio scheduler holds several objectives that need to be satisfied, for example: the scheduler needs to maximize the radio performance by efficiently distributing the limited radio re- sources, since the operator’s revenue depends on it.
标签： Communications Future Mobile LTE
上传时间： 2020-05-27
上传用户：shancjb
With the rapid growth in the number of wireless applications, services and devices, using a single wireless technology such as a second generation (2G) and third gener- ation (3G) wireless system would not be efficient to deliver high speed data rate and quality-of-service (QOS) support to mobile users in a seamless way. The next genera- tion wireless systems (also sometimes referred to as Fourth generation (4G) systems) are being devised with the vision of heterogeneity in which a mobile user/device will be able to connect to multiple wireless networks (e.g., WLAN, cellular, WMAN) simultaneously.
标签： Heterogeneous Wireless Networks Access
上传时间： 2020-05-27
上传用户：shancjb
This book addresses two aspects of network operation quality; namely, resource management and fault management. Network operation quality is among the functions to be fulfilled in order to offer quality of service, QOS, to the end user. It is characterized by four parameters: – packet loss; – delay; – jitter, or the variation of delay over time; – availability. Resource management employs mechanisms that enable the first three parameters to be guaranteed or optimized. Fault management aims to ensure continuity of service.
标签： Ethernet Networks MPLS and IP
上传时间： 2020-05-27
上传用户：shancjb
Mobile radio communications are evolving from pure telephony systems to multimedia platforms offering a variety of services ranging from simple file transfers and audio and video streaming, to interactive applications and positioning tasks. Naturally, these services have different constraints concerning data rate, delay, and reliability (quality-of-service (QOS)). Hence, future mobile radio systems have to provide a large flexibility and scal- ability to match these heterogeneous requirements.
标签： Communications Wireless Channels MIMO over
上传时间： 2020-06-01
上传用户：shancjb
