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.
Results
Showing 1 to 20 of 37 for “"Packet Delivery Ratio"”.
-
Impact of Node Location on Quality of Service in Infrastructure Wireless Mesh Networks
… self-forming, self-healing, and self-configuration. Infrastructure Wireless Mesh networks also have added benefits such as low up-front costs, reliability, robustness, as well as being easy to maintain. The infrastructure consists of static nodes which could be the routers or Portals. These …
-
Energy-efficient adaptive data rate optimisation scheme for LoRaWAN
… more efficiently, to automate various operations, and to minimise energy usage, thus helping in the reduction of greenhouse gas emissions. Among the IoT technologies, Low Power Wide Area Networks (LPWANs) perform a pivotal function in delivering efficient and scalable connectivity for this …
-
Investigating the Performance of Honey Badger Algorithm for Multi-Hop Routing Wireless Sensor Network
… such as network lifespan, residual energy, and packet delivery ratio. Results show that while HBA underperforms in small areas, it significantly boosts performance in larger networks, extending coverage up to 24% compared to just 1% without it.
-
The performance of directional flooding routing protocol for underwater sensor networks
… for a given metric such as end-to-end delay, packet delivery ratio and energy consumption. From the results, some protocols can be very suitable for the underwater medium.
-
Unmanned Aeronautical Ad-hoc Networks: Enhancing the Reactive-Greedy-Reactive Protocol and Introducing a New Mobility Model
… outperforms RGR. There is a 5.3% increase in Packet Delivery Ratio at a negligible cost in latency. Furthermore, realistic mobility models, including EGM, show a lot of network partitioning. Therefore, this should be taken very seriously when developing a routing protocol for UAANETs.
-
Evaluating the effect of quality of service mechanisms in power-constrained wireless mesh networks
… different existing QoS mechanisms affect the operational lifetime of battery-powered WMN nodes. This goal was achieved by evaluating how connection (TCP) and connectionless (UDP) Transport Layer protocols together with Reactive (AODV) and Proactive (OLSR) Routing protocols influence the lifetime …
-
Performance Evaluation of Routing Protocols and ML-based Enhancements for UAV-Assisted Post-Disaster Communication Networks
… survivors during Search and Rescue (SAR) operations and for survivors to communicate for emergency aid. To alleviate post-disaster consequences and save lives, Uncrewed Air Vehicles (UAVs), commonly known as drones, can be employed to establish adaptable and reliable emergency communication …
-
The influence of transmission range on the performance of Vehicular AD-HOC Network (VANET)
… used. The performance is evaluated in terms of packet delivery ratio and end to end delay. The simulation results showed that better performance can be achieved in term of higher PDR and lower end to end delay when the transmission range is less than 500 meters. In contrary, when the …
-
High-throughput routing for multi-hop wireless networks
… ETX of a path is the expected total number of packet transmissions (including retransmissions) required to successfully deliver a packet along that path. For practical networks, paths with the minimum ETX have the highest throughput. The ETX metric incorporates the effects of link loss ratios, …
-
Is IPv6 a Better Choice to Handle Mobility in Wireless Sensor Networks?
… does have negative effect on network latency and packet delivery ratio. In summary, we observe the pattern that the higher the speed of the mobile node, the worse the network performance. The conclusion is that the current RPL routing protocol and standard can only be used in a mobile network …
-
Dynamic channel selection for meshed wireless personal area network
… of two or more channels to achieve a high packet delivery ratio and better performance of the network especially when it uses applications that needs high traffic. Furthermore, it gives the network the flexibility to increase the capacity when new devices want to join the network by …
-
Load distribution and energy awareness in manets using multipath routing
… extensive performance evaluation considering packet delivery ratio, average end-to-end delay and routing efficiency, for both mobile and static scenarios. The second aspect of the thesis addresses energy awareness. When a single connection is considered, multipath routing can potentially …
-
Adaptive Multicast Routing Protocol Based on Reinforcement Learning
… multicasting approaches either suffer from low Packet Delivery Ratio (PDR) or high overhead. These methods rely on metrics like hop count to find the optimal path to the destination. Once the path is selected, all packets are sent over the same path as long as it is available. However, a path …
-
An Intrusion Detection Scheme for Wireless Mobile Ad hoc Networks based on DSDV Protocol
… infrastructure-less deployment in military operations and also in emergency and disaster-relief situations. However, the unreliability of wireless links between nodes, possibility of mobile nodes being captured or compromised, break down of cooperative algorithms, all lead to increased …
-
A new sinkhole attack detection algorithm for RPL in wireless sensor networks (WSN)
… packages then overhear to the received packet, meaning that the node can overhearing to the neighbor node. Furthermore, three different simulation scenarios were applied, which are the scenario without attacker nodes, scenario with attacker nodes and the scenario with attacker and …
-
Determining fuzzy link quality membership functions in wireless sensor networks
… poor route selection and hence to unacceptable packet losses. This thesis evaluated the Channel Quality membership function of, an existing fuzzy link quality estimator and it was seen that this membership function didn’t perform as well as expected. This thesis presents an experimental approach …
-
Designing Intelligent Energy Efficient Scheduling Algorithm To Support Massive IoT Communication In LoRa Networks
… channel sensing. We compare energy efficiency, packet delivery ratio, latency, and signal strength with existing state of art algorithms and prove that our proposed solution is efficient for massive IoT LoRaWAN with star topology.</p>
-
An investigation of mobile ad-hoc network performance with cognitive attributes applied
… network, it adds many factors that hinder packet delivery. Such hindrances occur because of the dynamic topology caused by the mobility of the nodes which results in link breakages. Routing protocols exist that attempt to refresh available routes; however, this is after link breakages have …
-
The effect of topology control for wireless multi-hop networks
… the algorithm was utilised, were compared. The Packet Delivery Ratio, Delay. Routing Protocol Overhead and Power Consumption were used as the simulation parameters. The neighbour control process was found to significantly reduce the number of hops taken by the token to visit each network node at …
-
Joint position estimation, packet routing and sleep scheduling in wireless sensor networks
… (ECKN), a joint position estimation, packet routing, and sleep scheduling solution that combines some overlap- ping features. I propose a localization algorithm that performs trilateration using the position of a mobile sink and of neighbour nodes to estimate the position of a sensor …
Page 1 of 2