• KIPS Transactions on Computer and Communication Systems
• /
• v.8 no.8
• /
• pp.201-208
• /
• 2019

Intra-Body Communication (IBC) is a communication method using the human body as a communication medium. The fact that our human body consists of water and electrolyte allow such communication method could work and have strength in low-power. However, because the IBC directly affects to human body by using it as a medium, there was a lack of research in communication protocols of each communication layer. In this paper, we suggests MAC parameters which affects the performance of communication in human body channel, and propose new MAC protocol. Our results shows that our MAC is suitable for supporting high data rate applications with comparable radio duty cycle performance.

• Proceedings of the KIEE Conference
• /
• 2001.11c
• /
• pp.184-186
• /
• 2001

This paper describes a method of human sensibility evaluation for pleasant and unpleasant environments. Conditions of the environment are room temperature and humidity. Changing the conditions, 10-channel EEG signals for 4 subjects are collected. Linear predictor coefficients of the recorded EEGs are extracted as the feature parameter of human sensibility. A neural network-based human sensibility estimation algorithm is developed. The developed algorithm showed good performance in the pleasantness evaluation. The neural network output produced accurate states of pleasantness sensibility. Subject-independent test showed similar results with subject-dependent test.

• Korean Journal of Human Ecology
• /
• v.2 no.1
• /
• pp.52-67
• /
• 1999

The primary purpose of this study was to analyze the types of home managers in association with effects of resourcefulness, communication and the conditions for effective home management＇ proposed by Shape and Winter(1991). A survey was conducted by subjects of 300 wives in Kwangju city. The statistical data were obtained by cluster analysis, one-way ANOVA, Duncan＇s test and chi-square test. Manager types based on the four conditions, resourcefulness and communication were classified into four clusters. Educational background, job status, family types, family life cycle and age difference between the oldest and the youngest child of the subjects were different from manager types. In conclusion, this study identified the four conditions of performance-condition dichotomy, timing, high level and middle range, resourcefulness, and communications in order to develop managerial capability. (Korean J Human Ecology 2(1) : 52∼67, 1999)

• Proceedings of the KIEE Conference
• /
• 2002.07d
• /
• pp.2690-2692
• /
• 2002

This paper describes a technique for human sensibility evaluation using 10-channel EEG(electroencephalogram). The proposed method uses the linear predictor coefficients as EEG feature parameters and a neural network as sensibility pattern classifier. For subject independent system, multiple templates are stored and the most similar template can be selected. EEG signals corresponding to 4 emotions such as, relaxation, joy, sadness and anger are collected from 5 armature performers. The states of relaxation and joy are considered as positive sensibility and those of sadness and anger as negative. The classification performance using the proposed method is about 72.6%. This will be promising performance in the human sensibility evaluation.

• ETRI Journal
• /
• v.37 no.3
• /
• pp.439-449
• /
• 2015

Human body communication (HBC) is being recognized as a new communication technology for mobile and wearable devices in a body area network (BAN). This paper presents co-channel interference experienced by HBC supporting the physical layer in the IEEE 802.15.6 BAN standard. To analyze the co-channel interference, a co-channel interference model is introduced, and space-domain and time-domain parameters representing an interference environment are generated using the co-channel interference model. A new signal-to-interference ratio (SIR) parameter depending on the peak amplitudes of the data signals causing co-channel interference is defined; co-channel interference can be easily analyzed and modelled using the newly defined SIR. The BER degradation model derived using the co-channel interference model and SIR in this paper can be effectively used to estimate the performance.

• Journal of Korean Institute of Industrial Engineers
• /
• v.38 no.2
• /
• pp.133-143
• /
• 2012

The study on social robots has been actively conducted in the robot research community. In the area of robot design, however, there are few studies regarding robot motions that are one of the methods for interaction between humans and robots. This is a preliminary study to find preferred human motions that can be applied to social robots. We conducted a two-phased empirical study about preferred human motions. In the first phase, four representative human motions, such as 'greeting', 'I don't know', 'positive answer', and 'giving', were captured through 28 body makers and video recording. 10 young and 6 elderly Singaporeans participated in the motion capture process. In the second phase, the communication efficiency, emotion, and satisfaction of the human motions recorded in the first phase were measured by a questionnaire and 31 young Koreans, 35 young Singaporeans participated to investigate cultural differences. We drew the conclusion that motions used in the same culture are efficient in communication and also give friendliness and satisfaction. In addition, regardless of user's culture, young people's motions and female motions were preferred in terms of communication efficiency, emotional aspect, satisfaction.

• Proceedings of the Korean Society of Broadcast Engineers Conference
• /
• 2009.01a
• /
• pp.719-722
• /
• 2009

The purpose of this paper is to develop a robot that moves independently, communicates with a human, and explicitly extracts information from the human mind that is rarely expressed verbally. In a spoken dialog system for information collection, it is desirable to continue communicating with the user as long as possible, but not if the user does not wish to communicate. Therefore, the system should be able to terminate the communication before the user starts to object to using it. In this paper, to enable the construction of a decision model for a system to decide when to stop communicating with a human, we acquired speech and motion data from individuals who were asked many questions by another person. We then analyze their speech and body motion when they do not mind answering the questions, and also when they wish the questioning to cease. From the results, we can identify differences in speech power, length of pauses, speech rate, and body motion.

• The Journal of the Korea institute of electronic communication sciences
• /
• v.16 no.6
• /
• pp.1069-1074
• /
• 2021

Recently, mobile communication technology has new eras with supply of 5G commercial communication. 5G mobile communication service is currently supplied with city area, services will be quickly expanded to entire area of country. This mmWave based 5G mobile communication is under spreading for human communication with voice and Internet service. After completion of construction of this human communication, this technology will be expanded to industrial communications. Railway communication system is an example of this industrial communications. In this, performance of traffic transmission for railway communication network based on this 5G railway communication networks will be analyzed with computer simulations. Construction requirements of 5G railway communication networks will be suggested with this analysis results.

• Korean Journal of Human Ecology
• /
• v.18 no.5
• /
• pp.1021-1033
• /
• 2009

The purpose of this study was twofold: One was to investigate the structural relationships among communication with father and mother, ego-identity, and school adjustment. The other was to test the structural equivalence among researched variables between middle and high school samples. The subjects were 419 sophomores of middle and high schools. The major findings were as follows. 1) Communication with the father had direct and indirect effects on adolescents' school adjustment, while communication with the mother had only an indirect effect on school adjustment. 2) Ego-identity had a direct effect on school adjustment, and mediated the effects of communication with father and mother in school adjustment. 3) Multiple-group analysis revealed that middle and high school groups had the same structural relationships, but had different regression weights.

• Journal of the HCI Society of Korea
• /
• v.13 no.1
• /
• pp.5-10
• /
• 2018

This paper provokes considerations on companionship. As human-robot relation becomes important, the role and communication styles of robot become crucial. In order to see how we should design communication styles of social robots, we generated scenarios based on pre-studies. Then, we conducted a $2{\times}2$ experiment to compare four different conditions by expected role and communication style. We divided expected roles into playing and serving role by dominance level. Also, we matched communication style on one condition and mismatched on the other. The results imply matching role with communication style is crucial in some role, however not in every role. As HCI expands to human-computer relation, our study would inspire future research on companionship between human and robots.