• International journal of advanced smart convergence
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• 제7권4호
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• pp.197-205
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• 2018

Nowadays, wireless sensor networks (WSNs) have been widely adopted in structural health monitoring (SHM) systems for social overhead capital (SOC) public infrastructures. Structural health information, environmental disturbances and sudden changes of weather conditions, damage detections, and external load quantizing are among the capabilities required of SHM systems. These information requires an efficient transmission with which an efficient mobility management support for wireless networks can provide. This paper deals with the analysis of mobility management schemes in order to address the real-time requirement of data traffic delivery for critical SHM information. The host-based and network-based mobility management protocols have been identified and the advantages of network mobility (NEMO) enabled Proxy Mobile Internet Protocol version 6 (PMIPv6) have been leveraged in order to address the SHM information transmission needs. The scheme allows an efficient information transmission as it improves the handover performance due to shortened handover latency as well as reduced signaling overhead.

• 한국컴퓨터정보학회논문지
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• 제21권4호
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• pp.25-30
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• 2016

We consider energy efficient transmit and receive strategy for a delay sensitive data. More specifically, we investigate an energy optimum scheduling characteristics for the 2 user interference channel where each user interferes to each other. First, we determine the optimum transmission rate region each individual user may have for optimum transmission. Next, we consider the optimum transmission region of two users together. Shortest path algorithm can be used for further reduction of search space. Eventually, we can reduce computational complexity. We then examine the performance of the optimum transmission strategy for various system environments.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2002년도 하계종합학술대회 논문집(1)
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• pp.295-298
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• 2002

This paper has been proposed about the efficient ACL data transmission method by link quality for Bluetooth. By tile host tile HCI command confirm tile link quality values and change the packet type into several environment. And then we can analyze the data rate through this. From the construed result, after the suitable ACL packet type had been selected, the efficient data transmission method was proposed.

• 로봇학회논문지
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• 제4권1호
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• pp.68-73
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• 2009

The UPnP is middleware architecture that supports dynamic distributed computing environment. It has many good features for possible use as middleware in robot system integration. There is a need for bulky binary data transmission between distributed robot S/W components. Since the UPnP utilizes SOAP protocol for message transmission, however, it is not efficient to send bulky binary data. In order to overcome this weak point, this paper proposes UPnP-MTOM, MTOM (Message Transmission Optimization Mechanism) implementation over UPnP, as an efficient way for bulky binary data transmission with UPnP messages. This paper presents our implementation method and experimental results of the UPnP-MTOM implementation.

• Current Optics and Photonics
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• 제7권3호
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• pp.248-253
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• 2023

An efficient global optimization approach for a periodic plasmonic nanoslit array based on extraordinary optical transmission within an acceptable time range is proposed using 𝚀 factor analysis method. The particle swarm optimization is employed as a global optimization tool. The figure of merit is defined as a product of transmission peak value and 𝚀 factor. The design variables are the slit width, height, and period of the slit array, respectively. The optical properties such as transmission spectrum and bandwidth are calculated rigorously using the finite element method.

• 인터넷정보학회논문지
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• 제10권3호
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• pp.85-94
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• 2009

본 논문에서는 무선 센서 네트워크에서의 에너지 효율적인 전송방안을 제안하고 이에 대한 이론적 분석을 제시하고자 한다. 본 논문에서 제안하는 전송기법은 채널 상태가 상대적으로 좋을 때만 전송을 시도하는 opportunistic transmission에 기반한 이진 결정 (binary-decision) 기반 전송이다. 이진 결정 기반 전송에서는 Markov decision process (MDP)를 이용하여 성공적인 전송을 위한 최적의 채널 임계값을 도출하였다. 다양한 시뮬레이션을 통해 제안하는 전송기법의 성능을 에너지 효율성과 전송율 측면에서 분석하였다.

• 정보처리학회논문지:컴퓨터 및 통신 시스템
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• 제5권4호
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• pp.87-94
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• 2016

제안된 논문은 기지국의 에너지 효율을 최대화하기 위한 에너지 전송 방식에 관한 것으로, 기존의 데이터 처리량과 송신전력 사이의 지수 함수적 관계에 따른 비효율적 문제를 해결함으로써 서비스의 유형에 따른 데이터를 분류하고, 무선 네트워크 환경의 기지국에서 사용자 들에게 전송 되는 최적의 데이터 량에 따른 에너지 최적화 지점을 찾아내는 방법이다. 이를 위해, 기지국에서 사용자에게 전송되는 데이터의 양 및 유지시간을 조절하여 데이터 전송의 에너지 효율 최적화 지점을 찾을 수 있는 EETA 알고리즘(Energy-Efficient Transmission Algorithm)을 제안한다. 결과적으로 제안한 방식은 기존 기지국 대비 에너지 효율이 약 10% 향상됨을 알 수 있다.

• 한국항공운항학회지
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• 제20권4호
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• pp.39-44
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• 2012

This paper propose a transmission method for "Transportation system" that can decide precise position under wide area road traffic environment. For precise position detecting, central station collect multiple receiver station's satellite navigation data and generate correction information. In this process, we need efficient real time transmission method for satellite navigation message that has variable data size. We propose real time data transmission method. This real time transmission method offer efficient processing structure for multiple receiver station's satellite navigation message. This paper explains proposed real time transmission method and proofs this transmission method.

• 정보처리학회논문지C
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• 제17C권1호
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• pp.81-88
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• 2010

센서네트워크에서 센서는 배터리에 의해 작동이 되며 배터리의 수명이 다하면 더 이상 동작을 할 수 없다. 센서가 수집한 데이터는 효과적인 경로를 통해 싱크노드로 전달되어야 하며 이를 위한 여러 라우팅 알고리즘이 제안되었다. 하지만, 기존의 알고리즘은 데이터를 전송하는데 있어서 전송범위와 전송방향을 고려하지 않기 때문에 많은 노드들이 데이터 전송에 참여하게 되고 결과적으로 많은 에너지를 소모한다. 본 논문에서는 센서 네트워크에서의 효과적인 데이터 전송을 위해 전송범위와 전송방향을 고려한 라우팅 알고리즘인 TDRP(Transmission range and Direction Routing Protocol)를 제안한다. TDRP는 클러스터 또는 그리드를 생성하지 않고, 싱크노드를 중심으로 사분면을 형성하여 패킷의 전송방향을 결정하는 방법으로 네트워크 오버헤드가 적으며, 패킷의 전송방향에 위치하는 노드들 만이 통신에 참여하므로, 에너지 효율성이 기존의 알고리즘들보다 뛰어 나다.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2008년도 추계학술대회 논문집
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• pp.1145-1150
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• 2008

In this paper, We studied efficient design of wireless transmission system for unified data transmission in a subway and railway. It is increased that need of broadband multimedia service to make useful environment for user and to support the operation of railway system. High bandwidth is better if we need more services. But, high bandwidth requires more cost at tunnel of subway. More bandwidth make receive sensitivity to bad. So it need more wireless Station. We deduced best bandwidth of subway wireless transmission system reflecting the cost of installation and efficiency of system. Consequently, we decide efficient service model of broadband wireless system at a subway. Subway broadband wireless transmission system is tested in this year, and it is to be extended to province subway. Cost of subway broadband wireless transmission system is saved, because the system can be efficiently designed. Therefore, the effectiveness is expected to be very big.