Discussion of Master's student Sakina Hassan Musa

The Department of Computer Engineering at the University of Nahrain discussed the master's student Sakina Hassan Musa about her thesis entitled:

IMPROVING QOS IN VANET

The discussion committee, which was held in the hall of the Computer Engineering Department Council / College of Engineering on Sunday 16\2\2025, consisted of the following persons whose names and affiliations are listed:

1. Assistant Professor Dr. Ayman Daoud Salman, Department of Computer Engineering / University of Technology, Chairman

2. Assistant Professor Dr. Ahmed Faeq Hussein, College of Engineering / University of Nahrain, Member

3. Assistant Professor Dr. Ayman Jaber Salman, College of Engineering / University of Nahrain, Member

4. Assistant Professor Dr. Ruslan Saad Abdulrahman, College of Engineering / University of Nahrain, Supervisor

The thesis was scientifically evaluated by the first scientific evaluator, Assistant Professor Dr. Ammar Alaa El-Din Nouri\University of Iraq\Department of Computer Engineering and the second scientific evaluator, Assistant Professor Dr. Hassan Jalil Abdul Hadi\Technological University\Department of Computer Engineering and Linguistically by Asst. Prof. Dr. Israa Badr Nasser\College of Engineering\Nahrain University.

Abstract

Vehicular Ad-hoc Networks (VANETs) facilitate communication between vehicles and adjacent roadside units (RSUs), aiming to address various transportation challenges. The existing literature identifies transmission delay as a critical issue within VANETs, particularly in emergency situations. Unfortunately, many prevalent routing protocols in VANETs exhibit significant shortcomings in mitigating this problem.

        Routing refers to the process of directing a packet from its source to its destination within a network, utilizing a routing algorithm aimed at establishing an efficient pathway. This pathway should be designed to minimize overhead. In the existing literature, routing protocols in Vehicular Ad Hoc Networks (VANETs) are categorized in various ways, depending on different factors. In this study, The aim to improve the Quality of Service (QoS) in VANET based on various QoS parameters and thus will enhance the performance of this network.

       Adopt a classification The improved broadcast method involves choosing top neighbours based on a scoring system and sending messages .Eliminating duplicate transmissions allows the network to focus on delivering unique messages, thereby improving Quality of Service (QOS).

       The focus of this study is to compare the proposed protocol with the Vehicle-Assisted Data Delivery (VADD) protocol. The investigation was conducted using Python code that simulates a VANET environment. Several evaluation metrics were employed, including Packet Delivery Ratio (PDR), Packet Loss Rate (PLR), End-to-End Delay, and Throughput.

         The results indicate that neither protocol is universally ideal for all VANET traffic scenarios. However, DRP consistently outperforms VADD across all parameters and node counts. DRP has a 9% to 12% higher PDR , DRP has a 50% to 69% lower PLR , reduces delays by 13% to 33% and achieves a 28% to 49% higher throughput. DRP proves to be a more efficient and reliable routing protocol compared to VADD.

The thesis has been accepted as fulfilling the requirements for the Master's degree.