• Journal of Communications and Networks
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• v.18 no.1
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• pp.50-64
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• 2016

Nowadays, smart meter (SM) technology is widely effectively used. In addition, power allocation (PA) and channel selection (CS) are considered problems with many proposed approaches. In this paper, we will suggest a specific scenario for an SM configuration system and show how to solve the optimization problem for transmission between SMs and the data concentrator unit (DCU), the center that collects the data from several SMs, via simulation. An efficient CS with PA scheme is proposed in the TV white space system, which uses the TV band spectrum. On the basic of the optimal configuration requirements, SMs can have a transmission schedule and channel selection to obtain the optimal efficiency of using spectrum resources when transmitting data to the DCU. The optimal goals discussed in this paper are the maximum capacity or maximum channel efficiency and the maximum allowable power of the SMs used to satisfy the quality of service without harm to another wireless system. In addition, minimization of the interference to the digital television system and other SMs is also important and needs to be considered when the solving coexistence scenario. Further, we propose a process that performs an interference analysis scheme by using the spectrum engineering advanced Monte Carlo analysis tool (SEAMCAT), which is an integrated software tool based on a Monte-Carlo simulation method. Briefly, the process is as follows: The optimization process implemented by genetic evolution optimization engines, i.e., a genetic algorithm, will calculate the best configuration for the SM system on the basis of the interference limitation for each SM by SEAMCAT in a specific configuration, which reaches the solution with the best defined optimal goal satisfaction.

• Journal of Korean Biological Nursing Science
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• v.5 no.2
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• pp.13-19
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• 2003

Purpose : The purpose of this study was to investigate the effects of the education using short messaging service(SMS) on fasting blood sugar(FBS) and diabetes adherence. Method : Forty-five diabetic patients being assessed pre and post intervention was used to assess the effectiveness of the education. Participants were requested to input the FBS and 2 hours post-prandial blood sugar everyday in http://www.biodang.com by cellular phone or wire Internet. The goal of the education was to lower FBS and keep diabetes adherence. The education was applied to the for 12 weeks. The education consisted of continuous education and reinforcement of diet, exercise, medication adjustment, as well as frequent self-monitoring of blood glucose levels. The education performed weekly. All medication adjustments were communicated to the participants' doctor. FBS and diabetes adherence were measured before and after the education. Results : The education using SMS of cellular phone had decrease FBS and increase oral medication taking, exercise, foot care, and hypoglycemia preparation adherence.

• Journal of information and communication convergence engineering
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• v.7 no.2
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• pp.176-181
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• 2009

This study is part of a project to develop and improve mooring systems for oceanographic use that include an electro-optical sensor, 1MHz Nortek Aquadopp Doppler Profiler and AIRMAR multipurpose Sensor. The adaption of Doppler current profilers to measure directional wave spectra has provided a new instrumentation approach to coastal and nearshore oceanographic studies. The HEIOB is developed are light weight and of a compact design, and can be easily installed in marine environment. Since there are no base station and gateways in marine environments, we selected CDMA and Orbcomm to send the data information. Therefore, the data can be sent by either e-mail service or Short Message Service (SMS). This paper will present some of scientific sensor results regarding real-time oceanographic and meteorological parameters such as wind spend, wind direction, wave direction, and etc. The modeling and test results highlight the engineering challenges associated with designing these systems for long lifetimes. It can also be used in future application to build wave observation buoy network in real-time using multiple ubiquitous buoys that share wave data and allow analysis of multipoint, multi-layer wave profiler.

• Journal of Digital Contents Society
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• v.5 no.2
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• pp.114-120
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• 2004

This paper proposes the wireless integrated service for controlling networked appliances. Using wireless devices such as celluar phone and PDA which can communicate through Bluetooth and CDMA technology, home appliances are accessed and controlled from outside of house. The XML and the SMS message format is designed to specify controlling information for home appliances. Also the mobile agent and the message processor for networked appliances are implemented in the home gateway. In order to verify the proposed service system, a universal remote controller for cellular phone and PDA and network appliance simulator on web browser are implemented. Correct operation is verified through simulation using them.

• Journal of Internet Computing and Services
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• v.9 no.2
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• pp.139-145
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• 2008

CRM(Customer Relationship Management) improves the competitiveness of small companies to large enterprises. E-mail, SMS (Short Message Service), telephony service, DM (Direct Mail) are used for customer response in many companies. In order to improve company's profit, business diversification is in progress with protecting the succession of existing customers, and the only of new customers. Futhermore, BPR (Business Process Re-engineering) and BPM (Business Process Management) of the CRM can be easily found in many companies, because it is the first contact point to the company at the customer's view. This paper discusses the development of CRM, and proposes a call object routing agent that is the main engine of the CRM. Result of performance evaluation of proposed method show that the system is effective and powerful enough to use at the multi-channel environment.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.13 no.6
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• pp.2707-2712
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• 2012

Desktop-based computing environment is changed into mobile computing using smart phone and cloud computing providing common behavior and big data by network. Because of this transformation software development and operating environment is changed into heterogeneous distributed environment. As a result, dynamic service composition or changement is required. However, there is few research of techniques supporting service composition or changement dynamically in this situation. This paper suggests a technique for customizing services dynamically of mobile applications based on android platform. Especially we propose a customization technique of service by applying ontology technique to improve sharing and reuse of service. We applied proposed technique into meeting notification system, and obtain that it can be customized into various services such as email, sms, twitter service, and so on.

• 한국정보통신설비학회:학술대회논문집
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• 2004.08a
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• pp.165-168
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• 2004

차량, 선박, 버스등과 같은 이동체의 위치정보를 유무선 통신망의 사용자에게 실시간으로 제공하는 방법을 기술한다. 각 이동체는 고유의 LBS번호가 지정된 GPS단말기를 탑재하고, 사용자는 유무선통신망을 통해 해당 LBS번호로 접속함으로써 이동체에 대한 위치정보서비스 및 모니터링, 오더링, SMS서비스를 호환성있게 제공받을 수 있다.

• Journal of the Korea Society of Computer and Information
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• v.15 no.3
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• pp.121-128
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• 2010

Whenever and wherever, recognizing location of object such as human as well as things, ubiquitous Location-Based Service which provides useful service based on this are rising as an important service. In this paper, we implemented customized real time 1:1 e-CRM system that can communicate with user's mobile phone through using Location-Based Service of mobile phone. Among various scenarios that are applicable to designed system, development and test were conducted based on scenario that provides shopping information and discount information to customers through SMS as they approach to vicinity of large discount store and allow them to download discount coupons through Call Back. The suggested system will be applied to various service event and can be used as a customized real time marketing method according to user's personal activity area.

• Proceedings of the Korean Society of Computer Information Conference
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• 2013.01a
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• pp.67-70
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• 2013

스마트폰 보급은 현대인들에게 시간적, 공간적 제약에서 벗어나 언제 어디서나 무선 인터넷을 사용하여 모바일 뱅킹, 결재, 증권거래 등 원하는 서비스를 이용할 수 있게 해주었다. 사용자들은 이를 이용하여 다양한 정보들을 검색, 저장, 이용한다. 그러나 무선 인터넷의 순기능과는 반대로 최근 모바일 기기의 보안취약점을 이용한 악성애플리케이션 및 각종 공격으로 사용자 개인정보탈취의 위협이 증가하고 있다. 사회공학공격의 일종인 피싱(Phishing)은 신뢰받는 기관을 사칭하여 만들어놓은 가짜사이트에 사용자로부터 자신의 개인정보 및 금융정보를 입력하게끔 유도하여 사용자정보를 탈취하는 방법으로 최근 SMS를 이용하여 정부 및 금융기관을 사칭한 문자를 보내 피싱사이트로 접속을 유도하는 피해사례가 증가하고 있다. 본 논문에서는 국내 피싱사이트의 유형을 분석하고 피싱사이트로 접근을 유도하는 방법 중 하나인 SMS를 이용한 피싱을 방지 할 수 있는 시스템을 고안한다.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.5 no.3
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• pp.560-574
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• 2011

In this paper, we propose a hybrid method of Machine Learning (ML) algorithm and a rule-based algorithm to implement a lightweight Named Entity (NE) extraction system for Korean SMS text. NE extraction from Korean SMS text is a challenging theme due to the resource limitation on a mobile phone, corruptions in input text, need for extension to include personal information stored in a mobile phone, and sparsity of training data. The proposed hybrid method retaining the advantages of statistical ML and rule-based algorithms provides fully-automated procedures for the combination of ML approaches and their correction rules using a threshold-based soft decision function. The proposed method is applied to Korean SMS texts to extract person's names as well as location names which are key information in personal appointment management system. Our proposed system achieved 80.53% in F-measure in this domain, superior to those of the conventional ML approaches.