Intelligent adaptive bandwidth provisioning for quality of service in umts core networks

Quality of Service in IP Networks

... Principles o Traffic shaping l l leaky bucket token bucket o Scheduling strategies l l l l l FIFO Priority Round Robin Fair Queueing RED o IntServ o DiffServ Queue Management Improving QOS in IP ... in IP Networks o IETF groups are working on proposals to provide better QOS control in IP networks, i.e., going beyond best effort to provide some assurance for QOS o Work in Progress includes ... Management Principles for QOS Guarantees (more) o Alternative to Marking and Policing: allocate a set portion of bandwidth to each application flow; can lead to inefficient use of bandwidth if one of the...

ON APPLICATION-PERCEIVED QUALITY OF SERVICE IN WIRELESS NETWORKS

... ﬁeld application-perceived Quality of Service The work was done at the School of Engineering at Blekinge Institute of Technology (BTH) in the context of the Personal Information for Intelligent ... Messaging services, sending information essentially in one direction when required; • Interactive services, sending information in both directions in a request/response manner This classiﬁcation ... 91-7295-096-X On Application-Perceived Quality of Service in Wireless Networks Stefan Chevul Department of Telecommunication Systems School of Engineering Blekinge Institute of Technology SWEDEN...

security & quality of service in ad hoc wireless networks

... 5.9 References Quality of service 6.1 Introduction 6.2 Routing in mobile ad hoc networks 6.3 Routing with quality of service constraints 6.4 Quality of service routing in ad hoc networks 6.5 Conclusion ... Acknowledgements Introduction 1.1 Ad hoc networking 1.2 The ad hoc wireless network: operating principles 1.3 Ad hoc networks: vulnerabilities 1.4 Ad hoc networks: security requirements 1.5 Quality of service ... page intentionally left blank SECURITY AND QUALITY OF SERVICE IN AD HOC WIRELESS NETWORKS Ensuring secure transmission and good quality of service (QoS) are key commercial concerns in ad hoc wireless...

Báo cáo hóa học: " A New MAC Protocol with Pseudo-TDMA Behavior for Supporting Quality of Service in 802.11 Wireless LANs" docx

... The performance of the MAC protocols is tested for variable number of contending stations, basic and handshaking access, and the several access classes Every terminal is assumed to demand all four ... assumed to demand all four classes of access In case of saturation analysis, it is assumed that a packet is always available for transmission For AC3 of the proposed protocol, admission control is utilized ... publications in scientiﬁc journals and proceedings of international conferences Associate Professor Kotsopoulos has been the leader of several international and many national research projects Finally,...

Báo cáo hóa học: " Fiber over Wireless Chromatic Dispersion Compensation for a Better Quality of Service" pptx

... media As an optical signal travels through the glass, it becomes more and more distorted over longer distances for a variety of reasons The primary contributors to signal distortion are polarization-mode ... problems appear in the ﬁber link depending on modulation format of the transmitted radio signal where the quality of transmission is being improved by using chromatic dispersion compensation stages over ... spectral domain through a spectral enlargement With the aim of quantifying the eﬀect of those phenomena along a transmission length, it is practical to introduce some characteristic variables;...

Báo cáo hóa học: " Editorial Quality of Service in Mobile Ad Hoc Networks" ppt

... is, dynamic source routing and ad hoc on-demand distance vector routing Their ﬁndings are expected to lead to further performance improvements of various ad hoc networks in the future The sixth ... Associate Professor in the Department of Electrical Engineering and Computer Science at the University of Toledo, USA He received his Ph.D degree from the Chinese Academy of Sciences in 1994 Dr ... research interests are in the routing protocols and security in wireless internet and mobile ad hoc networks; algorithms, complexity, power connectivity and coverage in wireless sensor networks; adaptation,...

Báo cáo hóa học: " Generalized Alamouti Codes for Trading Quality of Service against Data Rate in MIMO UMTS" doc

... issues of wireless modems In May 1999, he moved to The Netherlands, joining Bell Labs efforts in wireless LANs in Europe In October 2001, he joined the Faculty of Electrical Engineering and Information ... diversity gain against data rate and thus augmenting the diversity order and outage probability for fulfilling the quality of service (QoS) requirements Not considered in this paper is the impact of the ... said on data rates yet In the case of NT × antenna schemes, the NT symbols were repeated NT times in a different and specific order guaranteeing a data rate of one Thus, the data rates in the proposed...

Báo cáo hóa học: " Effective Quality-of-Service Renegotiating Schemes for Streaming Video" ppt

... 36636, 37488, 38340 Effective Quality-of-Service Renegotiating Schemes for Streaming Video 287 Table 10: Performance comparison between the proposed algorithm and bandwidth renegotiating scheme (test ... Effective Quality-of-Service Renegotiating Schemes for Streaming Video [6] Z.-L Zhang, J Kurose, J D Salehi, and D Towsley, “Smoothing, statistical multiplexing, and call admission control for stored ... token bucket size, (b) packet loss rate, and (c) token drop rate Effective Quality-of-Service Renegotiating Schemes for Streaming Video 285 Table 1: Statistical properties of test MPEG trace files...

Chapter 10 - Quality of Service in the IMS ppt

... 10. 4: P-CSCF adds SRF info to an incoming 183 response 273 CHAPTER 10 QUALITY OF SERVICE IN THE IMS 274 encryption mechanisms like S/MIME (described in Section 11.4) are not allowed in the IMS Section ... 272 CHAPTER 10 QUALITY OF SERVICE IN THE IMS LS semantics are typically used to group an audio and a video stream, as shown in Figure 10. 1 The a=group line carries the semantics of the group ... not expect the IMS to adopt them in the immediate future 10. 3 Reservations by the Terminals Terminals use the SRF information received in session descriptions to determine the number of resource...

quality of service for voice over ip solutions guide

... solutions Quality of Service for Voice over IP Solutions Guide Version 1.0 1-1 Chapter QoS for Voice over IP Solutions Overview About VoIP The Quality of Service for VoIP Solutions Guide focuses ... operations expenses Quality of Service for Voice over IP Solutions Guide Version 1.0 1-3 Chapter QoS for Voice over IP Solutions Overview About QoS for VoIP QoS features for voice that implement ... Bytes 27091 Voice payload Quality of Service for Voice over IP Solutions Guide 1-2 Version 1.0 Chapter QoS for Voice over IP Solutions Overview About QoS for VoIP TCP offers reliability in that...

Application level quality of service and information quality provisioning in sensor networks

... case of sensor networks In databases, the information is stored somewhere and the problem of handing information translates to a problem of searching and fetching the necessary information In the ... Information Quality Chapter Quality of Information The main goal of operation of sensor networks is collection of information about events and phenomena happening in the area where the sensors are ... object and process levels of IQ are tightly bound in the sensor networks Therefore we are going to distinguish only two layers of information for the case of sensor networks High -level collective information, ...

An adaptive framework for end to end quality of service management

... control plane for signaling, data plane for media transmission and knowledge plane for meta-data recording 3.3 QCMF M ANAGEMENT F UNCTIONS As an adaptive end- to -end QoS management framework, ... rich set of services for the configuration and management of the transmission quality (e.g., buffer management, flow synchronization and QoS-based handover) outside the kernel space of an endhost ... sub-optimal end- to -end performance In this sense, an overall QoS framework that encompasses QoS mechanisms of various layers is essential for the satisfaction of an end- user Furthermore, end- to -end QoS...

Algorithms for quality of service provisioning and enhancement in optical burst switched networks

... 1.3 Need for Quality of Service Support in Optical Burst Switched Networks and Challenges Due to the extreme popularity and success of the Internet, there is great diversity in current Internet ... develop algorithms for QoS provisioning and performance enhancement in OBS networks at diﬀerent levels of operation Speciﬁcally, we de11 velop a burst scheduling algorithm to improve burst loss performance ... communication and entertainment needs New types of applications and services such as web browsing, video conferencing, interactive online gaming continue to be created to satisfy those needs They demand increasingly...

Intelligent adaptive bandwidth provisioning for quality of service in umts core networks

... work is capable of intelligently provisioning bandwidth Two bandwidth provisioning schemes are presented for UMTS core backbone networks The Reinforcement Learning Adaptive Provisioning (RLAP) scheme ... Reinforcement Learning Formulation of Bandwidth Provisioning Problem 57 CHAPTER 5: Reinforcement Learning-based Provisioning for Core Backbone Network 5.1 Introduction 60 5.2 Current Methods of ... Timothy Chee-Kin Hui and Chen-Khong Tham, “Reinforcement Learning-based Dynamic Bandwidth Provisioning for Quality of Service in Differentiated Services Networks , Proceedings of IEEE International...

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