Department of Computer Science and Information Systems

Permanent URI for this collectionhttp://localhost:4000/handle/123456789/1928

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Author: search.filters.author.Dua, AmitSubject: search.filters.subject.Computer Science

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Now showing 1 - 10 of 50
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    Blockchain-enabled secure transactions in V2G networks
    (IEEE, 2025-06) Dua, Amit; Bansal, Hari Om
    The increasing integration of Vehicle-to-Grid (V2G) systems in modern energy networks necessitates secure, transparent, and efficient mechanisms for energy trading. However, existing centralized approaches are susceptible to cyberattacks, lack transparency, and face scalability challenges. This paper proposes a blockchain-enabled decentralized platform to ensure secure and tamper-proof energy transactions between electric vehicles (EVs) and the grid. The system leverages smart con-tracts for automated settlements, cryptographic protocols for enhanced data privacy, and artificial intelligence (AI) models for real-time anomaly detection and fraud prevention. By integrating blockchain's transparency and immutability with AI's adaptability, the proposed solution addresses key challenges in trust, scalability, and cybersecurity. A prototype implementation demonstrates the platform's effectiveness, achieving improved transaction throughput, reduced latency, and enhanced resistance to malicious activities compared to traditional systems. Extensive simulations validate the scalability and resilience of the proposed framework under varying transaction loads and attack scenarios. This work lays the foundation for a transformative approach to energy trading, fostering increased trust, participation, and sustainability in V2G markets.
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    Learning automata based contention aware data forwarding scheme for safety applications in vehicular Ad Hoc networks
    (IEEE, 2013-12) Dua, Amit
    With an exponential growth of demands of the users to access various resources during mobility lead to the popularity of Vehicular Ad Hoc Networks (VANETs). Users may access various resources from cloud which consists of many resources for the ease of users. VANETs have been used in wide range of applications such as Intelligent Transport Systems (ITS), Safety alarms on roads/in community, online resource access using Internet connectivity etc. Among these applications, safety applications are most important and various proposals exist in literature for the same. But most of the existing proposals have used unicast sender based data forwarding which results an overall performance degradation with respect to the metrics such as packet delivery ratio, end-to-end delay and reliable data transmission. Keeping in view of the above, in this paper, we propose new Learning Automata based Contention Aware Data forwarding scheme for VANETs using cloud infrastructure. Learning Automata (LAs) are assumed to be located in the vehicles which share the information (such as vehicles density, directions of the vehicles or vehicles velocity etc) with the other LAs for taking the adaptive decisions about data forwarding. Based upon these values, automaton performs its action. Corresponding to each action performed by the automaton, its action may be rewarded or penalized by some constant values from the environment where it is working. Based upon the inputs from the environment, each automaton updates its action probability values for the next rounds. An adaptive Learning Automata based Contention Aware Data Forwarding (LACADF) algorithm is also proposed. The proposed scheme is evaluated with respect to different network parameters such as message overhead, throughput, delay etc. with varying density and mobility of the vehicles. The results obtained show that the proposed scheme is better than the other conventional schemes with respect to the above metrics.
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    Efficient TDMA based virtual back off algorithm for adaptive data dissemination in VANETs
    (IEEE, 2014-01) Dua, Amit
    With an exponential growth of Internet related technologies, there is an emergence of new class of efficient data dissemination using Vehicular Ad Hoc networks for the safety of peoples. As there are limited number of channels in IEEE 802.11 a/b/g/p standards, so efficient mechanisms are required to allocate the same for new incoming requests from the users. Keeping in view of the same, we propose a modified TDMA based virtual back off algorithm for VANETs. Vehicles are assumed to be arrived using Poisson distribution and served as exponential. By varying the distance from RSUs, we have provided the analysis of end-to end delay for varying speed of vehicles.
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    Collaborative P2P context-aware information propagation in vehicular ad hoc networks
    (IEEE, 2015) Dua, Amit
    With exponential growth of the Internet users in past few years, there is a need of context-aware information sharing among different inter-connected entities over the Internet. The prime objective of the inter-connected objects is that within a minimum use of available resources, maximum output with respect to parameters such as throughput and delay can be achieved. But, due to high velocity and irrelevant information propagation, there may be a performance degradation in some part of the network with respect to these parameters. To address these issues, we have designed novel algorithms for context-aware information propagation among the vehicles. The proposed scheme consists of algorithms for data access, data dissemination, and data suggestion. These algorithms are based on reliability of vehicle which is calculated as soon as vehicles enter the network and is updated after each successful execution of various operations of information propagation. The scheme works on by increasing the reliability which in turn solve the broadcast storm problem in which sometime irrelevant information may also be sent to the vehicles. Simulation results prove the merit of the proposed scheme over the other existing schemes with respect to parameters such as message overhead, connectivity ratio, and resources utilization.
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    A novel central energy management system for smart grid integrated with renewable energy and electric vehicles
    (IEEE, 2016) Dua, Amit
    Smart Grid (SG) is envisioned to become one of the leading technologies of the modern era by imparting information, and communication technology to the traditional electric grid. The power, and energy sector faces challenges to meet the continuously increasing demand of power. However, this is constrained by the limited fuel resources, as well as the threats faced by the global climate. To maximize the utility of SG in the present scenario, it can be integrated with Distributed Energy Resources (DERs). DERs, which include Renewable Energy (RE) sources, and Electric Vehicles (EVs), provide an optimal solution to the power, and energy problems faced by the world today. This paper proposes a green energy system, consisting of DERs, a Central Energy Management System (CEMS), and a Seasonal Thermal Energy Storage (STES) system. The STES system employs waste heat, and solar thermal energy to provide a clean solution to heating, and cooling demands of the community. The CEMS monitors, and regulates the flow of electrical, and thermal energy in the proposed system. The CEMS proposed in this paper is based on fuzzy rough set theory. The prime objective of this scheme is to implement a real-time green energy management system in SG environment to make a balance between demand, and supply.
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    An energy efficient data dissemination and information retrieval scheme for VANET
    (IEEE, 2016-02) Dua, Amit
    With the increasing scarcity of resources, the need for energy efficient solutions has reached its pinnacle. Vehicular ad hoc networks (VANETs) is no exception and there is a need for exclusive solutions for energy efficient data dissemination and information retrieval. The proposed scheme classifies the vehicles into different types based on their storage and computation capacity. Cluster heads (CHs) are elected for each energy zone according to type of vehicle, and act as information center. Apart from CHs, the dissemination of data and access of information in efficient and correct manner is made possible with the help of vehicles having high processing capability. The broadcast storm problem that consumes high energy in terms of bandwidth, is solved using proposed game theoretic decision model. The proposed model gives suggestion to vehicles whether to disseminate the information or not based on the current energy situation of the network. Simulation results prove that the proposed model saves energy and time by minimizing the overhead and delay. The network energy is efficiently utilized by achieving higher packet delivery ratio and lower delay than other state-of-art protocols.
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    Secure message communication among vehicles using elliptic curve cryptography in smart cities
    (IEEE, 2016) Dua, Amit
    Message exchange among vehicles is an integral part of communication in smart cities. Messages are exchanged to inform the other vehicles about emergency situations such as-safety alerts, and location privacy. Due to the usage of an insecure wireless medium, malicious activities in vehicles, i.e., illegal use of the false messages, can astray other vehicles. Security in communication among the vehicles can be provided by encrypting the messages using various security keys. However, it has been found from the literature that existing schemes for secure communication require large key size, and therefore may these schemes may not be applicable to smart cities. To address these issues, a secure message communication scheme among vehicles based on elliptic curve cryptography (ECC) is proposed. The proposed scheme needs smaller key size leading to mathematically simple and cost effective solution. Furthermore, the scheme provides mutual authentication, confidentiality, and forward secrecy. Security analysis prove that the proposed scheme is suitable to be adapted in smart city environment.
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    Security solutions against attacks in mobile ad hoc networks and their verification using BAN logic
    (IEEE, 2017) Dua, Amit
    In the last few years, there has been tremendous interest in ad hoc wireless networks as they have massive military and commercial potential. An ad hoc wireless network serves as an independent network that comprises of mobile devices that utilize wireless transmission for communication, having no fixed infrastructure. These networks eliminate the complexity of infrastructure setup and hence can be deployed in quick time. However, on the negative side, such networks are very vulnerable to attacks against availability, service integrity, security, privacy and several other possible threats. To overcome these attacks, several security mechanisms have been proposed to ensure the reliability of ad hoc networks.
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    A survey on power-aware protocols for Wireless AdHoc network
    (IEEE, 2017) Dua, Amit
    A wireless Ad Hoc network is a decentralized type of wireless network. In an Ad Hoc network, each node participates by forwarding data to other nodes instead of depending upon existing infrastructure such as routers in wired networks and access points in wireless networks. The nodes which participate in forwarding data are determined dynamically. Power has always been an issue and an important factor in Ad hoc networks. Nodes have limited battery life and with prolonged use of a node, its battery life decreases and may also lead to the failure of the node once the battery level falls to a critical level. In order to avoid this situation, routing protocols have been developed which consider the battery level of the nodes along with the path to developing an energy efficient algorithm. A detail categorization of various power aware routing protocols along with its merits and demerits have been presented. A comparison has been made among these protocols.
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    Enhancing flow security in RYU controller through set operations
    (IEEE, 2017) Dua, Amit
    Software-Define Networking (SDN) is a new generation architecture for managing and controlling the network in cost-effective and efficient way. This architecture segregates the network such that forwarding and control plan is now decoupled. The network is divided into three planes: Application plane, Control plane, and Data plane. SDN provides a programming interface with which a network administrator can modify the flow of data through flow rules. With these benefits and dynamism, it also open new security threats and challenges. In this paper, the possible threats at various SDN layers are discussed. Following which a possible solution to one of security threat proposed. The proposed solution based on set operation has been proven to be secure and practically applicable