Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 34 for “"NS-3"”.
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NS-3 Simulation of WiMAX Networks
… available. One that is growing in popularity is NS-3, the successor to the popular NS-2. It is a significant departure from NS-2, and offers many advantages and disadvantages. In this thesis, we translate and update a sophisticated WiMAX simulation model from NS-2 to NS-3, and use this experience …
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Functional analysis of hepatitis C virus non-structural protein (NS) 3 protease and viral cofactor NS4A
… in 1989 as the major causative agent of transfusion-associated non-A, non-B hepatitis and today represents a worldwide health crisis with prevalence estimates of 2.2%. HCV-specific therapeutics have never been more urgently needed. One of the validated drug targets is the non-structural (NS) …
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Spacecraft-ns3: Spacecraft Discrete-Event Network Simulation
… space becomes more populated with large constellations of satellites and research into spacecraft autonomy and disaggregation becomes more prevalent, it will be increasingly important to design effective communication procedures between satellites to efficiently share resources and avoid …
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Performance Analysis of Coexistence Schemes for LTE in Unlicensed Bands
LTE in the unlicensed spectrum, is becoming a popular area of research. Since LTE-Unlicensed (LTE-U) provides subscribers with higher-quality mobile voice, and video experience in high-traffic or low-signal locations, a fair coexistence mechanism with other networks, like Wi-Fi is essential. In …
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Cross flow control with weighted fairness and TCP friendliness
… Meanwhile, large companies or clusters have considerable needs for shaping their own flows while maintaining friendliness to other flows in the network. This thesis proposes a novel cross flow congestion control scheme to achieve weighted fairness among flows owned by clusters and friendliness …
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A study into concurrent advancement of simulation and emulation using composite synchronization.
… by the functionality of the network simulator. Instead, emulation can be combined with simulation to simulate real traffic generated by real applications. This integration of simulation and emulation is done in virtual time thanks to TimeKeeper, a recent open source tool that brings Linux …
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Enabling rApp in 5G O-RAN: An Spectral Optimization (SO)rApp Use Case
This thesis comprehensively examines the rApp lifecycle within the O-RAN Alliance (O- RAN) Non-Real Time RIC (Non-RT RIC) framework, serving as a practical guide for exper- imental research and development. The focus is on the entire lifecycle of rApp development, from designing and onboarding to …
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Photoassociative Spectroscopy of Ultracold Argon and Krypton Confined in a Magneto Optical Trap
<p>Creating ultracold molecules has attracted considerable interest in the last decade. Once created, such molecules can be used for precision spectroscopy or to study chemical reactions at ultracold tem peratures. Several techniques have been developed to produce ultracold molecules; the most …
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Parallel HTTP for Video Streaming in Wireless Networks
… called ParS that uses parallel TCP connections to stream video on mobile devices. Our system uses parallel connections to fetch each chunk of the video file using HTTP range requests. We present measurement results to characterize the performance of ParS under various network conditions in …
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Virtualization of multicast services in WiMAX networks
… of services that require high volumes of transactional data. Currently, network providers are concerned with the bandwidth amount for efficient use of the limited wireless network capabilities and the provision of a better quality of service. The virtualization design of a multicast service …
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Performance Evaluation of Routing Protocols and ML-based Enhancements for UAV-Assisted Post-Disaster Communication Networks
… areas become disconnected without any means of exchanging information. The collapse of existing communication networks poses challenges for First-Responders (FRs) in locating survivors during Search and Rescue (SAR) operations and for survivors to communicate for emergency aid. To …
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Opportunistic Random Media Access in WLANs
… distinguished based on their channel conditions. As a consequence, the nodes with better channel condition will get smaller back-off values, that enables these nodes win the contention with a larger probability. Besides, the protocol takes a data rate normalized average history throughput into …
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Controlled virtual time advancement in conjoined emulation and network simulation
Emulations of network services are more accurate than simulated models. However this is achieved at an increased computational cost. Combining emulation with simulation allows more accurate, controllable and repeatable evaluation of applications but such hybrid systems are generally not scalable. …
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Adaptive Multicast Routing Protocol Based on Reinforcement Learning
… a path that is deemed optimal at a specific instance of time may not retain its optimality at a subsequent moment due to node mobility. Moreover, using a metric like hop count that does not consider link quality can lead to poor PDR, as it can favor an unreliable path over a reliable one just …
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Design and Performance Analysis of an Aeronautical Routing Protocol with Ground Station Updates
… in the various modes and compare them against canonical MANET routing protocols such as DSDV, OLSR, AODV, and DSR. The simulation analysis shows that AeroRP outperforms the traditional MANET protocols in various scenarios.
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Robust Predictive Resource Allocation for Video Delivery Over Future Wireless Networks
… energy saving and quality of service (QoS) gains of Predictive Resource Allocation (PRA) for video streaming have recently been recognized in the wireless network research community. The PRA relies on future channel conditions to strategically deliver the video content of the mobile users. For …
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A reliable trust-aware reinforcement learning based routing protocol for wireless medical sensor networks.
Interest in the Wireless Medical Sensor Network (WMSN) is rapidly gaining attention thanks to recent advances in semiconductors and wireless communication. However, by virtue of the sensitive medical applications and the stringent resource constraints, there is a need to develop a routing protocol …
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Effective Scheduling Algorithms for Cross-Interference Mitigation in Heterogeneous Wireless Networks
… convenient. However, the well-known Carrier-sense multiple access with collision avoidance (CSMA/CA) mechanism is powerless when dealing with Cross-Technology Interference (CTI) between Wi-Fi and Low-Rate Wireless Personal Area Network (LR-WPAN), because of asymmetric transmission power, …
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Performance Evaluation of MU-MIMO WLANs Under the Impact of Traffic Dynamics
… (UDP flows). We extend the network simulator ns 3 to include support functionalities for 802.11ac compliant DL MU-MIMO simulations. By performing extensive simulations, we find that 802.11ac MU-MIMO achieves extremely small queue lengths ($\approx$ 2 packets) under TCP flows. Moreover, the …
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