• 한국가족관계학회지
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• 제21권2호
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• pp.97-127
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• 2016

Objective: This study explored benefits of a relationship-focused intervention to enhance marriage communication designed for multicultural married couples and changes that occurred in the way the program's participants communicated with one another. Method: The intervention program was implemented on six married multicultural couples (and six other couples as a control group), and their communication, conflict resolution, and adaptation before and after the intervention were examined. In addition, the researchers kept observation journals to understand the changes in the manner in which the married multicultural couples communicated with their spouse and examine their perception about participating in the program; further, we conducted post-program interviews with the participants after the completion of the program. Results: The results of this study are as follows: (1) the experiment group made more progress in improving couple communication, resolving marriage conflicts, and adapting as a married couple than the control group in a statistically significant manner in both preand post-program tests, and (2) the study confirmed through qualitative analysis that the program made positive contributions to improving the couples' abilities to have conversations and resolve conflicts, as well as their intimacy. Conclusion: Based on these results, implications for further research and practices were discussed.

• 디지털융복합연구
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• 제14권10호
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• pp.9-16
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• 2016

최근 기술의 발전과 함께 문화 간 융합이 이루어지는 정보사회화 흐름 속에서 커뮤니케이션 역량의 중요성이 더욱 커지고 있다. 이에 각 대학에서 커뮤니케이션 역량을 경쟁력 있는 인재양성에 있어 꼭 필요한 핵심역량의 하나로 간주하고 이와 관련된 교육과정의 개설과 운영을 위해 노력하고 있다. 따라서 본 연구에서는 대학생들의 핵심역량 강화를 위한 커뮤니케이션 교과목 개발에 관한 과정과 구체적인 콘텐츠를 제시하고 있다. 커뮤니케이션 교과목에 관한 콘텐츠에는 강의개요, 강의목표, 강의방법, 성적 평가방법, 주차별 학습주제, 학습목표, 학습내용 등이 포함되어 있다. 본 연구는 대학생들이 커뮤니케이션에 대한 이해를 바탕으로 커뮤니케이션 능력을 효과적으로 배양하여 대학생활을 하는데 있어 핵심역량을 더욱 향상시킬 수 있는 토대를 제공할 것이다. 또한 본 연구는 대학 및 사회에서 갖추어야 할 구성원의 핵심역량으로 가장 우선시 되고 있는 커뮤니케이션 역량에 대한 체계적 교육을 통해 사회적 가치를 창출할 수 있는 유능한 인재양성의 장을 마련해 줄 것이다.

• 한국정보과학회:학술대회논문집
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• 한국정보과학회 2007년도 가을 학술발표논문집 Vol.34 No.2 (A)
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• pp.175-176
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• 2007

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2005년도 추계종합학술대회
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• pp.707-710
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• 2005

In this paper, we propose a new communication network for on-chip communication. The network is based on a direct sequence code division multiple access (DS-CDMA) technique. The new communication network is suitable for a parallel processing system and also drastically reduces the I/O pin count. Our network architecture is mainly divided into a CDMA-based network interface (CNI), a communication channel, a synchronizer. The network includes a reverse communication channel for reducing latency. The network decouples computation task from communication task by the CNI. An extreme truncation is considered to simplify the communication link. For the scalability of the network, we use a PN-code reuse method and a hierarchical structure. The network elements have a modular architecture. The communication network is done using fully synthesizable Verilog HDL to enhance the portability between process technologies.

• 대한산업공학회지
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• 제33권2호
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• pp.237-245
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• 2007

In this paper, a modified PCF (Point Coordination Function) MAC (Medium Access Control) Protocol is proposed to support the multiple direct link communication between STAs (STAtions) in infrastructure mode IEEE 802.11 wireless LANs. By the proposed MAC protocol, the direct link communication between STAs, which are located within the communication range of each other, is allowed without the use of AP (Access Point) as a relay. Moreover, when multiple direct data communication between STAs can be simultaneously performed with a sufficiently small interference, multiple simultaneous direct link communication is allowed for the efficient use of radio bandwidth. AP polls STAs to grant the transmission opportunities using the direct link communication by transmitting the polling frames to STAs. An efficient polling method for granting the transmission opportunities to STAs is proposed to reduce the number of the polling frame transmissions and enhance the PCF MAC performance.

• ETRI Journal
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• 제17권3호
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• pp.1-16
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• 1995

An advanced real-time satellite simulator (ARTSS) has been developed to support the ground operations activities of the ETRI satellite control system, such as testing of the system facilities, validation of flight control procedures, verification of satellite commands as well as training of the ground operators. The design of ARTSS is based on the top-down approach and makes use of a modular programming to ensure flexibility in modification and expansion of the system. Graphics-based monitoring and control facilities enhance the satellite simulation environment. The software spacecraft model in ARTSS simulates the characteristics of a geostationary communication satellite using a momentum bias three-axis stabilization control technique. The system can be also interfaced with a hardware payload subsystem such as Ku-band communication transponder to enhance the simulator capability. Therefore, ARTSS is a high fidelity satellite simulation tool that can be used on low-cost desk top computers. In this paper, we describe the design features, the simulation models and the real-time operating functions of the simulator.

• 센서학회지
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• 제24권3호
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• pp.188-193
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• 2015

This paper presents a new byte-wise BCH (4122, 4096, 2) decoder, which treats byte-wise parallel operations so as to enhance its throughput. In particular, we evaluate the parallel processing technique for the most time-consuming components such as syndrome generator and Chien search owing to the iterative operations. Even though a syndrome generator is based on the conventional LFSR architecture, it allows eight consecutive bit inputs in parallel and it treats them in a cycle. Thus, it can reduce the number of cycles that are needed. In addition, a Chien search eliminates the redundant operations to reduce the hardware complexity. The proposed BCH decoder is implemented with VHDL and it is verified using a Xilinx FPGA. From the simulation results, the proposed BCH decoder can enhance the throughput as 43% and it can reduce the hardware complexity as 67% compared to its counterpart employing parallel processing architecture.

• Journal of Communications and Networks
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• 제16권2호
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• pp.209-216
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• 2014

Cognitive radio (CR) has been proposed to solve the spectrum utilization problem by dynamically exploiting the unused spectrum. In CR networks, a spectrum selection scheme is an important process to efficiently exploit the spectrum holes, and an efficient channel allocation scheme must be designed to minimize interference to the primary network as well as to achieve better spectrum utilization. In this paper, we propose a multichannel selection algorithm that uses spectrum hole prediction to limit the interference to the primary network and to exploit channel characteristics in order to enhance channel utilization. The proposed scheme considers both the interference length and the channel capacity to limit the interference to primary users and to enhance system performance. By using the proposed scheme, channel utilization is improved whereas the system limits the collision rate of the CR packets.

• Journal of Information Processing Systems
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• 제19권3호
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• pp.377-384
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• 2023

The existence of abnormal breakpoint data leads to poor channel balance in wireless sensor networks (WSN). To enhance the communication quality of WSNs, a method for positioning abnormal breakpoint data in WSNs on the basis of signal reconstruction is studied. The WSN signal is collected using compressed sensing theory; the common part of the associated data set is mined by exchanging common information among the cluster head nodes, and the independent parts are updated within each cluster head node. To solve the non-convergence problem in the distributed computing, the approximate term is introduced into the optimization objective function to make the sub-optimization problem strictly convex. And the decompressed sensing signal reconstruction problem is addressed by the alternating direction multiplier method to realize the distributed signal reconstruction of WSNs. Based on the reconstructed WSN signal, the abnormal breakpoint data is located according to the characteristic information of the cross-power spectrum. The proposed method can accurately acquire and reconstruct the signal, reduce the bit error rate during signal transmission, and enhance the communication quality of the experimental object.

• ETRI Journal
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• 제39권1호
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• pp.116-123
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• 2017

Message-locked encryption (MLE) is a widespread cryptographic primitive that enables the deduplication of encrypted data stored within the cloud. Practical client-side contributions of MLE, however, are vulnerable to a poison attack, and server-side MLE schemes require large bandwidth consumption. In this paper, we propose a new client-side secure deduplication method that prevents a poison attack, reduces the amount of traffic to be transmitted over a network, and requires fewer cryptographic operations to execute the protocol. The proposed primitive was analyzed in terms of security, communication costs, and computational requirements. We also compared our proposal with existing MLE schemes.