• KSII Transactions on Internet and Information Systems (TIIS)
• /
• v.11 no.9
• /
• pp.4418-4437
• /
• 2017

In this paper a three-phase secure compressive sensing (CS) and received signal strength (RSS) based target localization approach is proposed to mitigate the effect of malicious node attack. RSS measurements are first arranged into a group of subsets where the same measurement can be included in multiple subsets. Intermediate target position estimates are then produced using individual subsets of RSS measurements and the CS technique. From the intermediate position estimates, the residual error vector and residual error square vector are formed. The least median of residual error square is utilized to define a verifier parameter. The selected residual error vector is utilized along with a threshold to determine whether a node or measurement is under attack. The final target positions are estimated by using only the attack-free measurements and the CS technique. Further, theoretical analysis is performed for parameter selection and computational complexity evaluation. Extensive simulation studies are carried out to demonstrate the advantage of the proposed CS-based secure localization approach over the existing algorithms.

• Journal of Korea Entertainment Industry Association
• /
• v.14 no.2
• /
• pp.85-95
• /
• 2020

An Instruments are not only for musical usage, but also for historical, social and cultural contexts. The yanggeum instrument began to be played in Persia before the 10th century and is played in various parts of the world in the 21st century. It has been handed over for many years and played creatively beyond the boundaries of the region. In this paper, we will learn about the meaning of Korean traditional yanggeum, which preserves its original shape without any change in form or technique, through a method of musical iconography. As a method of musical Iconography for the musical instruments, we examined the data on the drawings and compared it with the literature, focusing on the origin, form and performance of the instruments. I hope that this study will not only provide a new perspective on instrument research, but also help understand the historical, social and cultural implications of the instrument. It is hoped that research on musical instruments will be done in many different ways and that the realm of musical science will be approached widely.