Kushan Sudheera

Kushan Sudheera
National University of Singapore | NUS · Department of Computer Science

Doctor of Philosophy
Looking for potential collaborators on Software Defined Vehicular Network and Network Security

About

28
Publications
7,645
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
217
Citations
Introduction
I received my PhD degree from Nanyang Technological University, Singapore in 2020, and B.Sc. Eng. (First Class Honors) degree from University of Ruhuna, Sri Lanka in 2015. I'm currently a postdoctoral research fellow at National University of Singapore. I was previously a Lecturer in the Faculty of Engineering, University of Ruhuna, Sri Lanka. My research interests mainly include Cyber-Security, Machine Learning, Data Mining, SDN, Vehicular Networks, IoT, Wireless Networks, Optimization Methods.
Additional affiliations
September 2019 - July 2020
National University of Singapore
Position
  • Research Associate
Description
  • Research on Cyber Security, Network Security, Machine Learning, Software Defined Networking at NUS-Singtel Cyber Security Lab.
August 2015 - August 2019
Nanyang Technological University
Position
  • PhD Student
February 2015 - June 2015
University of Ruhuna
Position
  • Lecturer
Description
  • Hosted the following roles respectively Temporary Instructor Temporary Lecturer Lecturer (On Assignment Basis)
Education
August 2015 - August 2019
Nanyang Technological University
Field of study
  • Electrical and Electronic Engineering
August 2010 - January 2015
University of Ruhuna
Field of study
  • Engineering

Publications

Publications (28)
Conference Paper
Full-text available
Vehicular ad-hoc network (VANET) has emerged as a viable solution for network related problems in intelligent transportation system (ITS). However, with its current architecture, VANET has not been able to fulfill some of the necessities of vehicular networks and most importantly still lacking flexibility and programmability. Recently Software Defi...
Conference Paper
Full-text available
Software Defined Vehicular Networks (SDVN) brings a set of attractive features to vehicular networks along with an upgrade in the performance. Yet, SDVN suffers from frequently compelling to contact the centralized control plane, which in turn generates a high latency and packet overhead in the communication. The current solution to reduce the dela...
Conference Paper
Full-text available
Data transmission in vehicular networks suffers heavily from its inherent dynamic nature as the connections between vehicles exist only for a limited amount of time. Therefore, the packets frequently find it hard to get through to the destination in multi hop data transmission as links are vulnerable in their existence. Conventional Vehicular Ad-ho...
Conference Paper
Full-text available
The paper proposes a GPS (Global Positioning System) tracking system for offshore fishing boats. The main objective of the proposed device is to minimize IUU (Illegal Unreported and Unregulated) fishing and develop sustainable fishing. There is a new demand in the world especially in Europe to import fish products only from sustainable fishing sour...
Preprint
p>Networks regularly face various threats and attacks that manifest in their communication traffic. Recent works proposed unsupervised approaches, e.g., using a variational autoencoder, that are not only effective in detecting anomalies in network traffic, but also practical as they do not require ground truth or labeled data. However, the problem...
Preprint
p>Networks regularly face various threats and attacks that manifest in their communication traffic. Recent works proposed unsupervised approaches, e.g., using a variational autoencoder, that are not only effective in detecting anomalies in network traffic, but also practical as they do not require ground truth or labeled data. However, the problem...
Article
Links in vehicular networks are highly dynamic and generally exist only for a limited amount of time. Moreover, data packets are generally transmitted over multiple hops and have diverse latency requirements. The above situations together create a dilemma on the order/priority of the packets to be transmitted. However, the existing channel access m...
Article
Full-text available
Inherent uncertainties of the air transportation system (ATS) can induce unexpected anomalies in its operations such as deviations in flight schedules, sudden imbalances of demands and capacities, etc.. Current air traffic flow management (ATFM) models rarely consider both demand and capacity uncertainties in their algorithms, and generally focus o...
Article
Full-text available
The fast-growing Internet of Things (IoT) market has opened up a large threat landscape, given the wide deployment of IoT devices in both consumer and commercial spaces. Attacks on IoT devices generally consist of multiple stages and are dispersed spatially and temporally. These characteristics make it challenging to detect and identify the attack-...
Article
Full-text available
In order to efficiently balance the current and future air traffic demands with the system capacity, a proper Air Traffic Flow Management (ATFM) approach is required. The current focus of ATFM is generally on optimally utilizing the available airspace and airport capacities, while maintaining the required safety separation between aircraft. Yet, on...
Thesis
Full-text available
Software Defined Vehicular Network (SDVN) recently emerged as an alternative paradigm for vehicular networks, overcoming its shortcomings and enabling programmability. In this thesis, we investigate possible limitations in SDVNs that impose doubts on its usability and ways SDVN can be used to enhance the performance of information dissemination. We...
Article
Full-text available
To tackle the future air traffic demands and to enhance the safety of the Air Transportation System (ATS), a proper flight routing and scheduling scheme is required. This paper proposes an Air Traffic Flow Management (ATFM) model while considering the inherent uncertainties present in the ATS. The proposed model aims to reduce capacity violations a...
Article
The dynamic nature of vehicular networks imposes a lot of challenges in multi-hop data transmission as links are vulnerable in their existence due to associated mobility of vehicles. Thus, packets frequently find it difficult to get through to the destination due to the limited lifetimes of links. The conventional broadcasting based Vehicular Ad-ho...
Conference Paper
Full-text available
This paper presents the primordial study on cooperative scheduling of diverse vehicular communication channels for a better dissemination of data in multi-hop routing scenarios. The system adopts a software defined vehicular network (SDVN) architecture to realize a logically centralized authority and utilizes vehicle-to-vehicle (V2V), vehicle-to-in...
Conference Paper
Full-text available
The dynamic nature of vehicular networks imposes a lot of challenges in multi-hop data transmission as links are vulnerable in their existence. Thus, the packets frequently find it difficult to get through to the destination as links only exist for a limited amount of time. The broadcasting based conventional routing protocols struggle to cope with...
Presentation
Delay Efficient Software Defined Networking based Architecture for Vehicular Networks - Presentation of the IEEE ICCS 2016 conference at Shenzhen, China.
Preprint
Vehicular ad-hoc networks (VANET) have emerged as a viable solution for network related problems in intelligent transportation system (ITS). However, with its current architecture, VANET has not been able to fulfill some of the necessities of vehicular networks and most importantly still lacking flexibility and programmability. Recently, Software D...
Conference Paper
The paper proposes a GPS (Global Positioning System) tracking system for offshore fishing boats. The main objective of the proposed device is to minimize IUU (Illegal Unreported and Unregulated) fishing and develop sustainable fishing. There is a new demand in the world especially in Europe to import fish products only from sustainable fishing sour...
Conference Paper
Full-text available
This paper proposes a Global Positioning System (GPS) tracking device for offshore fishing boats. The main objective of the device is to minimize Illegal Unreported and Unregulated (IUU) fishing for sustainable fishing as there are new regulations in the world, especially in Europe, to import fish products only from sustainable fishing sources. Thi...
Article
Full-text available
Secure Transmission of data from remote electronic devices to centralized web servers with the least amount of resources and handling big Data is a complex process. The integrity of data is questionable when transmitted through public transmission channels due to external attacks. Transmission of RAW data is also difficult at the client side to han...
Article
Full-text available
The Southern Expressway of Sri Lanka, has been in operation for few years. As in any other expressway, this too experienced few accidents. As the number of vehicles increases the number of accidents also increases. There are several factors that leads to accidents. Some are unavoidable some are avoidable, if a prior warning is given to motorists ab...
Conference Paper
The uses of quadcopters have grown significantly because of their ability to operate in dangerous locations while keeping their human operators at a safe distance and their ability to stay balance in a selected coordinate. Some of the main usages of quadcopter are ground surveillances, mapping, for military purposes, traffic controlling, etc. Here...

Questions

Questions (2)
Question
Hi,
I have a binary integer programming (BIP) problem obviously with all variables as binary. Is there any specific computational algorithm/method(s) for BIPs to reduce their solution time?
I found an algorithm called "Balas Additive Algorithm". However, it's formulation structure is very strict and limited.
Any suggestions would be highly appreciated.
Question
The problem in brief is as follows.
If (T_1 < T_2) <-> Y = 1 ---------------(1)
else Y = 0 ---------------(2)
Then,
Prob(\sigma Y < C) > \alpha -------(3)
In the above problem, T_1, T_2 and C are random variables (lets assume with some normal distributions).
The 1st and 2nd conditions can be linearized using mixed logic constraints. Also, the equation 3 can be solved using chance constrained programming.
The only problem is how to transform/generate the probability distribution of Y (Y is a binary variable) from distributions of T_1 and T_2.
Any help would be highly appreciated.

Projects

Project (1)
Project
To apply Software Defined Networking (SDN) in Vehicular networks to improve the efficiency and modularity of VANETs