Visible to the public Biblio

Filters: Author is Mutalemwa, Lilian C.  [Clear All Filters]
2021-08-17
Mutalemwa, Lilian C., Shin, Seokjoo.  2020.  Improving the Packet Delivery Reliability and Privacy Protection in Monitoring Wireless Networks. 2020 International Conference on Information and Communication Technology Convergence (ICTC). :1083—1088.
Source location privacy (SLP) protection ensures security of assets in monitoring wireless sensor networks (WSNs). Also, low end-to-end delay (EED) and high packet delivery ratio (PDR) guarantee high packet delivery reliability. Therefore, it is important to ensure high levels of SLP protection, low EED, and high PDR in mission-critical monitoring applications. Thus, this study proposes a new angle-based agent node routing protocol (APr) which is capable of achieving high levels of SLP protection, low EED, and high PDR. The proposed APr protocol employs multiple routing strategies to enable a dynamic agent node selection process and creation of obfuscating routing paths. Analysis results reveal that the APr protocol achieves high packet delivery reliability to outperform existing intermediate node-based protocols such as the AdrR and tree-based protocols such as the TbR. Furthermore, the APr protocol achieves significantly high levels of SLP protection to outperform the AdrR protocol.
Mutalemwa, Lilian C., Kang, Moonsoo, Shin, Seokjoo.  2020.  Controlling the Communication Overhead of Source Location Privacy Protocols in Multi-hop Communication Wireless Networks. 2020 International Conference on Artificial Intelligence in Information and Communication (ICAIIC). :055—059.
Fake source packet routing protocols can ensure Source Location Privacy (SLP) protection. However, the protocols have demonstrated some performance limitations including high energy consumption, low packet delivery ratio (PDR), and long end-to-end delay (EED). In this study, a 2-level phantom routing protocol is proposed to address some limitations of an existing fake source packet routing protocol. The proposed protocol supplants the fake source packets with a random second level phantom node to alleviate the limitations. Analysis results confirm that the proposed protocol is capable of achieving strong SLP protection with minimized communication overhead. By removing the fake packet traffic in the network, the protocol incurs minimized energy consumption, maximized PDR, and minimized EED.
2020-10-26
Mutalemwa, Lilian C., Seok, Junhee, Shin, Seokjoo.  2019.  Experimental Evaluation of Source Location Privacy Routing Schemes and Energy Consumption Performance. 2019 19th International Symposium on Communications and Information Technologies (ISCIT). :86–90.
Network lifetime and energy consumption of sensor nodes have an inversely proportional relationship. Thus, it is important to ensure source location privacy (SLP) routing schemes are energy-efficient. This work performs an experimental evaluation of some existing routing schemes and proposes a new angle-based routing algorithm to modify the schemes. The dynamic route creation process of the modified schemes is characterized by processes which include determination of route and banned regions and computation of control angle and lead factor parameters. Results of the analysis show that the modified schemes are effective at obfuscating the adversaries to provide strong SLP protection. Furthermore, the modified schemes consume relatively lower energy and guarantee longer network lifetime.
Mutalemwa, Lilian C., Shin, Seokjoo.  2019.  Investigating the Influence of Routing Scheme Algorithms on the Source Location Privacy Protection and Network Lifetime. 2019 International Conference on Information and Communication Technology Convergence (ICTC). :1188–1191.
There exist numerous strategies for Source Location Privacy (SLP) routing schemes. In this study, an experimental analysis of a few routing schemes is done to investigate the influence of the routing scheme algorithms on the privacy protection level and the network lifetime performance. The analysis involved four categories of SLP routing schemes. Analysis results revealed that the algorithms used in the representative schemes for tree-based and angle-based routing schemes incur the highest influence. The tree-based algorithm stimulates the highest energy consumption with the lowest network lifetime while the angle-based algorithm does the opposite. Moreover, for the tree-based algorithm, the influence is highly dependent on the region of the network domain.
Mutalemwa, Lilian C., Shin, Seokjoo.  2018.  Realizing Source Location Privacy in Wireless Sensor Networks Through Agent Node Routing. 2018 International Conference on Information and Communication Technology Convergence (ICTC). :1283–1285.
Wireless Sensor Networks (WSNs) are used in sensitive applications such as in asset monitoring applications. Due to the sensitivity of information in these applications, it is important to ensure that flow of data between sensor nodes is secure and does not expose any information about the source node or the monitored assets. This paper proposes a scheme to preserve the source location privacy based on random routing techniques. To achieve high privacy, the proposed scheme randomly sends packet to sink node through tactically positioned agent nodes. The position of agent nodes is designed to guarantee that successive packets are routed through highly random and perplexing routing paths as compared to other routing schemes. Simulation results demonstrate that proposed scheme provides longer safety period and higher privacy against both, patient and cautious adversaries.