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.
標簽： simulator carrying simulate traffics
上傳時間： 2014-01-01
上傳用戶：1583060504
CCIE R&S路由與交換 CCIE SP 服務提供商 認證考試指南 本書全面系統的介紹了Cisco CCIE路由與交換方向以及服務提供商方向考試的所有知識點。全書共分為 8 個部分。分別介紹了CCIE筆試和實驗室考試中所用到的基礎網絡知識，各種路由協議，LAN交換，城域網，MPLS，QOS及組播等。 本書按照Cisco CCIE路由與交換及服務提供商的考試大綱寫成，針對目前SP服務提供商考試資料相對匱乏的情況，整理出這本認證指南，其目標是為了使準備CCIE認證的考生獲得更方便的資料。 本書亦適合各類網絡工程師和網絡設計者作為工作時的參考手冊。
上傳時間： 2013-12-18
上傳用戶：sqq
嵌入式無線路由系統openwrt的web配置工具，包括無線配、路由配、dhcp、ip地址、防火墻、QOS等功能的配置
上傳時間： 2017-09-20
上傳用戶：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
標簽： Optimizing Complete coverage routing
上傳時間： 2017-09-26
上傳用戶：cuibaigao
本文提出了一種自適應的軟頻率復用（SFR）方案以改善小區邊緣的目標 性能以及整個小區的吞吐量。所提出的方案是有效的，靈活的。 具體而言，我們分別分析了連續的和分布式子載波分配方案，并且使用QOS 動態地調整子載波功率電平，從而實現所需的吞吐量。
標簽： sfr Interference mitigation ICIC
上傳時間： 2015-11-23
上傳用戶：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.
標簽： Quality-of-Service Distributed Support
上傳時間： 2020-05-27
上傳用戶：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.
標簽： Communications Future Mobile LTE
上傳時間： 2020-05-27
上傳用戶：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.
標簽： Heterogeneous Wireless Networks Access
上傳時間： 2020-05-27
上傳用戶：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.
標簽： Ethernet Networks MPLS and IP
上傳時間： 2020-05-27
上傳用戶：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.
標簽： Communications Wireless Channels MIMO over
上傳時間： 2020-06-01
上傳用戶：shancjb
