• 유통과학연구
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• 제20권10호
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• pp.1-9
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• 2022

Purpose: This study examines the economic and technical reasons for the uneven distribution of broadband internet services in Indonesia before and during the recession due to the C19 pandemic, and examines its effect on the country's economy. Research design, data and methodology: The research was designed by conducting an economic feasibility, which was verified through area observations and interviews with providers and their association, as well as the Regulator. Results: The results show that during the C19 pandemic, there has been an increase in the distribution of broadband internet services in Indonesia since there has been an increase in demand for cellular services and fixed services together. However, the increase in broadband internet service coverage is still not evenly distributed in the country and unable to boost the decline in Gross Domestic Product during the C19 pandemic. Conclusions: The increase in fixed broadband coverage by seventy percent is an indication for the state to make policies to encourage bundling techniques between operators with the aim of internet services being more evenly distributed throughout the country. Where, the influence of a more even distribution of broadband internet services in all countries is believed to be able to support the country's economy.

• 한국생활과학회지
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• 제19권5호
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• pp.845-855
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• 2010

This study examined the variables that affect whether consumers change broadband internet services by examining their past experiences and intention to switch carriers by targeting consumers who have switched broadband internet service providers. Among adult consumers who intended to switch broadband providers, 341 people who had experience were subject to logistic regression analysis using SPSS for Windows ver. 17.0 to examine frequencies, means, percentages, and factor analysis. The following results were revealed. First, the targets were currently using broadband internet service in the order Company S > Company L > Company K > others. Excluding the others, Company K had the most conversions (from 96 to 78), followed by Company S (from 107 to 97), and Company L (from 43 to 97), which more than doubled the number of subscribers. The reasons for switching carriers in the past were as follows: for Company K, consumers switched to other companies because of unsatisfactory fee services; for Company S, consumers switched to other companies because of quality, advertising and promotional activities, and commitment periods ending; for Company L, the consumers switched to other companies because of fee, quality, and service; and for other companies, the consumers switched to other services because of unsatisfactory quality. Second, the analysis of the elements that determined whether a consumer will switch broadband internet service providers showed that college graduates and individuals who had switched carriers voluntarily in the past were more likely to switch to a new broadband internet service provider. Furthermore, passive consumers had a higher probability of switching. Moreover, when consumers were less satisfied with the fees and services, there was a greater chance of switching to another company.

• Journal of Information Science Theory and Practice
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• 제12권1호
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• pp.60-76
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• 2024

Broadband Internet has proven to be vital for economic growth in developed countries. Developing countries have implemented several initiatives to increase their broadband access. However, its full potential can only be realized through adoption and use. With lower-middle-income countries accounting for the majority of the world's unconnected population, this study employs the theory of planned behavior (TPB) to investigate users' intentions to adopt broadband. Rural Tanzania was chosen as a case study. A cross-sectional study was conducted over three weeks, using 155 people from seven villages with the lowest broadband adoption rates. Non-probability voluntary response sampling was used to recruit the participants. Using the TPB constructs: attitude toward behavior (ATB), subjective norms (SN), and perceived behavioral control (PBC), ordinal regression analysis was employed to predict intention. Descriptive statistical analysis yielded mean scores (standard deviation) as 3.59 (0.46) for ATB, 3.34 (0.40) for SN, 3.75 (0.29) for PBC, and 4.12 (0.66) for intention. The model adequately described the data based on a comparison of the model with predictors and the null model, which revealed a substantial improvement in fit (p<0.05). Moreover, the predictors accounted for 50.3% of the variation in the intention to use broadband Internet, demonstrating the predictive power of the TPB constructs. Furthermore, the TPB constructs were all significant positive predictors of intention: ATB (β=1.938, p<0.05), SN (β=2.144, p<0.05), and PBC (β=1.437, p=0.013). The findings of this study provide insight into how behavioral factors influence the likelihood of individuals adopting broadband Internet and could guide interventions through policies meant to promote broadband adoption.

• 한국통신학회논문지
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• 제31권11B호
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• pp.997-1004
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• 2006

인터넷을 기반으로 하는 IT 눈부신 발전과 더불어 언제, 어디서나, 시간과 장소에 구애받지 않고 인터넷을 사용할 수 있도록 하는 사회적 요구가 구체화 되고 있다. 이러한 요구에 부응하고자 국내에서는 시속 200km이상의 빠른 속도로 이동 중에 있더라도 초고속인터넷이나 방송 서비스를 제공할 수 있는 위성광대역 인터넷 시스템기술을 개발하고 있다. 본 연구에서는 위와 같이 개발된 시스템을 국내 고속철도(KTX)에 적용하여 서비스를 제공할 때, 관련 시설투자에 대한 경제적 타당성을 검토하고i라 한다. 경제성 분석을 위해 현재 유럽에서 이미 제공되고 있는 고속철도 인터넷서비스를 조사하였고, 국내 고속철의 특성을 감안하여 필요시설과 장비를 구성하여 항목별 비용분석을 수행하였다. 해외 사례와 비행기 등의 다른 운송수단에서 예상하고 있는 수요 및 요금 수준에 근거하여 고속철도 인터넷서비스 매출을 시나리오별로 전망하였으며, 각 시나리오에서 계산된 비용과 매출로부터 순현재가와 수익률을 산정 하였다. 본 연구의 결과는 관련 기술 개발에 대한 경제적 타당성 여부를 판단하는데 활용될 수 있으며, 비용효과적인 서비스 설계 및 구현에 도움을 줄 수 있을 것으로 기대된다.

• 한국콘텐츠학회논문지
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• 제5권6호
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• pp.65-73
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• 2005

인터넷의 급속한 보급과 대용량 멀티미디어 서비스에 대한 요구가 나날이 증가하고 있다. 기존의 무선랜은 도달거리가 짧아서 가입자가 기지국(Base Station)에서 멀어지면 서비스 품질이 저하되고, 무선인터넷은 사용비용이 높다. 최근에 세계 최초로 국내에서 개발한 휴대 인터넷 시스템인 와이브로(WiBro: Wireless Broadband Internet) 시스템은 휴대폰과 무선 랜의 중간 영역에 위치한 이동초고속인터넷서비스이다. 본 논문에서는 와이브로 시스템의 근간을 이루는 IEEE 802.16 BWA을 기반으로 멀티미디어 서비스를 제공하기 위해서 서비스별 트래픽 모델과 특성을 분석하고, 다양한 트래픽 혼합 비율에 따라 시뮬레이션을 수행하였으며, 이를 토대로 최종적으로는 WiBro 시스템에서 셀 당 수용 가능한 최대 가입자 수를 산출하였다.

• 인터넷정보학회지
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• 제6권4호
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• pp.19-25
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• 2005

• 한국경영과학회지
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• 제31권3호
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• pp.145-154
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• 2006

WiBro (Wireless Broadband Internet) system is going to be 9ot down to commercialization. The high portable internet system is able to be connected to the high-speed internet using 2.3 GHz frequency bandwidth, anytime and anywhere. An effective scheduling for UGS, rtPS, nrtPS and BE requiring different QoS, which are service types of the WiBro, is necessary to increase the efficiency of radio channels that are the limiting resource. This paper researches an uplink scheduling that plays a role in assignment for the radio channels from subscribers to base stations. The suggested scheduling provides priorities with each service type considering QoS of them but reserves some bandwidth for lower priory services. After deciding effective amount of bandwidth for reservation, we suggest analytical result on mean delayed time of packet transmission for each terminal, transmission rate for the data, and capacity for uplink. This research can be used as basic data for the standard in the high portable internet system and as data to predict the capacity of base stations.

• 한국경영과학회:학술대회논문집
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• 한국경영과학회 2005년도 추계학술대회 및 정기총회
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• pp.347-353
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• 2005

WiBro (Wireless Broadband Internet) system is going to be commercialized before long. The high portable internet system is abie to be connected to the high-speed internet using 2.3 CHz frequency bandwidth, anytime and anywhere. An effective scheduling for UCS, rtPS. nrtPS and BE requiring different QoS, which are service types of the WiBro, is necessary to increase the efficiency of radio channels that arc the limiting resource. This paper researches an uplink scheduling that plays a role in assignment for the radio channels from subscribers to base stations. The suggested scheduling provides priorities With each service type considering QoS of them but reserves some bandwidth for lower priory services. After deciding effective amount of bandwidth for reservation, we suggest analytical result on mean delayed time of packet transmission for each terminal, transmission rate for the data, and capacity for uplink. This research can be used as basic data for the standard in the high portable internet system and as data to predict the capacity of base stations.

• 정보처리학회논문지C
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• 제12C권6호
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• pp.839-846
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• 2005

최근 정보기술의 발달로 통신, 방송, 인터넷 등의 모든 서비스들이 하나의 네트워크로 통합되는 광대역 통합망이 등장하게 되었다. 그러나 이에 대한 역기능으로 다양한 위협이 등장하고 있으며, 그 중 인터넷 웜과 같은 악성 코드는 국가 기간망을 뒤흔드는 혼란을 초래할 수 있다. 본 논문은 고성능 네트워크 환경에서 웜 확산에 대한 정확한 예측을 그 목표로 한다. 이를 위해 인터넷 쉽게 적용 가능한 확산 모델을 살펴보고, 여러 인터넷 웜을 적용하여 인터넷 환경에서 동작 방식을 분석한다. 제안 모델은 웜 확산 단계와 대응 단계에 따른 영향을 분석하여 인터넷 웜의 확산 규모와 속도를 보다 정확하게 예측할 수 있다. 본 논문의 결과는 광대역 통합 네트워크와 같은 고성능 네트워크에도 적용할 수 있다.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제4권6호
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• pp.1152-1168
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• 2010

Recently, due to the prevalence of various mobile devices and wireless broadband networks, there has been a significant increase in interest and demand for multimedia streaming services such as the mobile IPTV. In such a wireless broadband network, transmitting a continuous stream of multimedia data is difficult to achieve due to mobile stations (MSs) movement. Providing Quality of Service (QoS) for multimedia video streaming applications requires the server and/or client to be network-aware and adaptive. Therefore, in order to deploy a mobile IPTV service in wireless broadband networks, offering users efficient wireless resource utilization and seamlessly offering user perceived QoS are important issues. In this paper, we propose a new adaptive streaming scheme, called MARC (Mobile-aware Adaptive Rate Control), which adjusts the quality of bit-stream and transmission rate of video streaming based on the wireless channel status and network status. The proposed scheme can control the rate of multimedia streaming to be suitable for the wireless channel status by using awareness information of the wireless channel quality and the mobile station location. The proposed scheme can provide a seamless multimedia playback service in wireless broadband networks in addition to improving the QoS of multimedia streaming services. The proposed MARC scheme alleviates the discontinuity of multimedia playback and allocates a suitable client buffer to the wireless broadband network. The simulation results demonstrate the effectiveness of our proposed scheme.