Module Specifications.
Current Academic Year 2024 - 2025
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Date posted: September 2024 No Banner module data is available
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Description The aim of the module is to introduce the students to advanced network performance concepts. The students will be reminded of the OSI and the TCP/IP models and basic network-related protocol aspects. They will be introduced to Quality of Service and Network Performance metrics as well as to Quality of Experience and Quality of Perception as metrics to assess the quality of data delivery. Various novel and existing network protocols at network and transport network layers will be introduced and their performance-related characteristics will be discussed. These protocols will be classified based on the layers of the OSI stack they operate at and include: IPv4, IPv6, TCP, SCTP, DCCP, RTP, RTCP, etc. At application layer, multimedia and gaming applications will be discussed in details in the context of real-time content delivery, but other application types will also be presented. Adaptive and non-adaptive content delivery solutions will be presented along with significant issues such as end-user perceived quality. Modeling and simulation with the goal of assessing network performance will be introduced with focus on the application layer. Java development with focus on performance of transport and application layer network protocols will be performed. Novel performance-related issues in the context of mobility, power consumption and security will be discussed. | |||||||||||||||||||||||||||||||||||||||||||
Learning Outcomes 1. demonstrate advanced knowledge of networking in general and network performance in particular 2. define, compare and analyse network performance metrics, quality of service and quality of experience 3. present and comparatively assess different performance-aware communications solutions at network, transport and application network layers 4. analyse, contrast and compare solutions for power saving, mobility and security as well as for future network design and development 5. design and analyse solutions based on knowledge of modeling, simulations and prototyping | |||||||||||||||||||||||||||||||||||||||||||
All module information is indicative and subject to change. For further information,students are advised to refer to the University's Marks and Standards and Programme Specific Regulations at: http://www.dcu.ie/registry/examinations/index.shtml |
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Indicative Content and Learning Activities
1) IntroductionReview of Layered Network Architectures; Introduction to Data Network Performance; Quality of Service (QoS), Quality of Experience (QoE) and Network Performance Metrics – definitions, relationship and mapping between them.2) Quality of Service MetricsAvailability, Delivery, Latency, Bandwidth, MTBF (Mean TimeBetween Failure), MTRS (Mean Time to Restore Service), Power consumption, Mobility, Quality of Service - Cause and Effect; Solutions for Improving Quality of Service levels.3) Network Performance MetricsAvailability (Connectivity, Functionality), Loss (One way loss, round trip loss), Delay (One way delay, Round trip time, Delay variance), and Utilization (Capacity, bandwidth, Throughput), Power consumption (Power per Mbps).4) Network Modeling and SimulationsIntroduction to using NS-3; Measuring performance metrics – focus on performance at the application layer.5) User Perceived QualityType of services (Multimedia delivery, Real-time and interactive applications, Web applications, e-commerce, gaming) Quality of Experience and Quality of Perception.6-7) Performance-aware Java Network DevelopmentSockets; TCP and UDP Client-Server; Multi-threaded communication; Protocol Implementation: ICMP, SMTP, POP3, FTP and HTTP8) Performance at Application LayerMultimedia delivery, Web applications, gaming, etc. Quality of Experience and Quality of Perception; Quality-aware application solutions: QOAS, LDA+, DOAS, iPAS9) Performance at Network and Transport LayersProtocols: IPv4, IPv6, RTP, RTCP, SCTP, DCCP, MPTCP, TCP-SNOOP, Indirect-TCP, TCP-W10) Mobility AspectsMobility Management, network selection, handover, protocols to support mobility: Mobile IP, mDCCP, mSCTP, IEEE 802.2111) Power Management and Network Security IssuesNetwork power consumption; Energy savings solutions (e.g. IEEE 802.11 PSM); Authentication and authorisation, Cryptography, Security solutions (e.g. 802.11i)12) Next Generation NetworksFuture networks design and development performance-related issues | |||||||||||||||||||||||||||||||||||||||||||
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Indicative Reading List
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Other Resources None | |||||||||||||||||||||||||||||||||||||||||||