• Title/Summary/Keyword: Internet Bandwidth

Search Result 12, Processing Time 0.135 seconds

A Study on Proper Internet Bandwidth Estimation for Elementary & Secondary Schools (초·중등학교를 위한 적정 인터넷 대역폭 산정 방안 연구)

  • Park, Hyeong Yong;Kim, Sung Jo
    • The Journal of Korean Association of Computer Education
    • /
    • v.11 no.5
    • /
    • pp.47-55
    • /
    • 2008
  • The Internet is one of the most infrastructure for information technology in school education. Providing the Internet with a proper bandwidth is an important element for efficient school education for information technology, especially because several instructional models based on new Internet technologies are under development. To support these instructional models, it is important for the schools to provide the proper Internet bandwidth wherever necessary. In this paper, the amount and pattern of internet usage in school were analyzed. Based on this analysis, we propose how to figure out a proper bandwidth for a different ladder of schools.

  • PDF

A Bandwidth Allocation Method by Internet Service Types - Focus on Elementary and Middle Schools (인터넷 서비스 유형별 대역폭 할당 방안 - 초.중등학교 중심으로)

  • Park, Hyeong-Yong;Hwang, Jun;Kim, Jae-Hyoun
    • Journal of Internet Computing and Services
    • /
    • v.11 no.1
    • /
    • pp.49-57
    • /
    • 2010
  • Today, internet traffic is rapidly increasing by the appearance of a large number of website thru a numerous internet service provider and the introduction of advanced teaching methods like utilizing ICT(Information and Communication Technology) education. At these actualities, it is requested to increase internet bandwidth in the scene of school; however, it is difficult to resolve the request quickly because of the government's budget and technical problems. In this circumstance, this paper proposes a method to raise the efficiency of internet operations with the current bandwidth. In order to achieve the purpose of this paper, the analysis of internet traffic has been done by the traffic currently being used in school, and an internet bandwidth distribution model differ from the existing standpoint is developed with the analyzed result. It can be used to predict the increase in the bandwidth which may be requested at school in the future, and it can support the office of education for appropriate bandwidth allocation at schools and reduction of school budget in telecommunication. Also, it can be adopted as a future oriented reference model for network policy.

TCP-friendly RTP Rate Control

  • 하상석;정선태
    • Proceedings of the IEEK Conference
    • /
    • /
    • pp.255-258
    • /
    • 2003
  • TCP is taking over 95% among the Internet traffics. Recently the demands of multimedia services in the Internet has been increasing. These multimedia services mostly need real-time deliverly, and then RTP has been a de facto to transmission protocol for these real-time multimedia services. RTP uses UDP as its underlying transport protocol, and thus it does not support any rate and congestion control. Thus, for fair use of the Internet bandwidth with TCP traffics. RTP also needs a rate control. One constraint of RTP is that the feedback information(delivered by, RTP's twin protocol, RTCP) is recommended to be sent no less than 5 seconds. In this paper, we propose a TCP-friendly RTP rate control which use only RTCP feedback information at every 5 seconds. The experiment results show that our proposed algorithm works. But, it is found that we need more time to test the effects of parameters and policies of the algorithms, which will be reported later.

  • PDF

A TCP-Friendly Control Method using Neural Network Prediction Algorithm (신경회로망 예측 알고리즘을 적용한 TCP-Friednly 제어 방법)

  • Yoo, Sung-Goo;Chong, Kil-To
    • Proceedings of the KIEE Conference
    • /
    • /
    • pp.105-107
    • /
    • 2006
  • As internet streaming data increase, transport protocol such as TCP, TGP-Friendly is important to study control transmission rate and share of Internet bandwidth. In this paper, we propose a TCP-Friendly protocol using Neural Network for media delivery over wired Internet which has various traffic size(PTFRC). PTFRC can effectively send streaming data when occur congestion and predict one-step ahead round trip time and packet loss rate. A multi-layer perceptron structure is used as the prediction model, and the Levenberg-Marquardt algorithm is used as a traning algorithm. The performance of the PTFRC was evaluated by the share of Bandwidth and packet loss rate with various protocols.

  • PDF

Congestion Control and Differentiated Services based Pricing (요금부과를 기반으로 구별되는 서비스와 혼잡관리)

  • 지선수
    • Journal of the Korea Industrial Information Systems Research
    • /
    • v.8 no.4
    • /
    • pp.17-25
    • /
    • 2003
  • In the current bandwidth mechanism, ISPs provide guaranteed internet bandwidth within itself domains. Also transmission of data through the network can cause congestion. An inevitable consequence is partly responsible for the difficulties to ISPs and customers. In economic views, multiple demands for a scarce resource are mediated through a bandwidth market. Using the auction-based admission algorithm In price congestion, I propose a different pricing scheme for statistically guaranteed QoS.

  • PDF

An Efficient Mobile Video Streaming Rate Selection Technique based on Wireless Network Characteristics (무선망 특성을 고려한 효율적 비디오 스트리밍 재생률 선택 기술)

  • Pak, Suehee
    • Journal of Korea Multimedia Society
    • /
    • v.20 no.1
    • /
    • pp.1-9
    • /
    • 2017
  • Explosive deployment of smart mobile devices such as smart phones, and tablets along with expansion of wireless internet bandwidth have enabled the deployment of mobile video streaming such that video traffic becomes the most important service in wireless networks. Recently, for more efficient video streaming services, the ISO MPEG group standardized a protocol called DASH (Dynamic Adaptive Streaming over HTTP) and the standard has been quickly adopted by many service providers such as YouTube and Netflix. Despite of the convenience of mobile streaming services, users also suffer from low QoE(Quality of Experience) due to dynamic channel fluctuations and unnecessary downloading due to high churning rates. This paper proposes a noble efficient video rate selection algorithm considering user buffer level, channel condition and churning rate. Computer simulation based performance study showed that the proposed algorithm improved the QoE significantly compared to a method that determines the video rate based on current channel conditions. Especially, the proposed method reduced the rebuffering rate, one of the most important performance factors of the QoE, to a nonnegligible level.

Binary Search on Multiple Small Trees for IP Address Lookup (복수의 작은 트리에 대한 바이너리 검색을 이용한 IP 주소 검색 구조)

  • Lee Bo mi;Lim Hye sook;Kim Won jung
    • The Journal of Korean Institute of Communications and Information Sciences
    • /
    • v.29 no.12C
    • /
    • pp.1642-1651
    • /
    • 2004
  • Advance of internet access technology requires more internet bandwidth and high-speed packet processing. IP address lookups in routers are essential elements which should be performed in real time for packets arriving tens-of-million packets per second. In this paper, we proposed a new architecture for efficient IP address lookup. The proposed scheme produces multiple balanced trees stored into a single SRAM. The proposed scheme performs sequential binary searches on multiple trees. Performance evaluation results show that p개posed architecture requires 301.7KByte SRAM to store about 40,000 prefix samples, and an address lookup is achieved by 11.3 memory accesses in average.

Access, Skills and Constraints of Barangay Officials towards the Use of Information and Communications Technology (ICT)

  • Santiago, Cereneo S. Jr.;Ulanday, Ma. Leah P.;Centeno, Zarah Jane R.;Bayla, Ma. Cristina D.
    • International Journal of Knowledge Content Development & Technology
    • /
    • v.11 no.2
    • /
    • pp.37-54
    • /
    • 2021
  • The study determined the access, skills and constraints towards the usage of ICT among barangay officials. A complete enumeration technique was used due to the small size of the population. A total of 121 barangay secretaries and barangay treasurers comprised the study respondents. The findings revealed that most of barangay officials have access to personal computer at home and in the office using their own mobile data and office internet connectivity. With the support from the Local Government Unit (LGU), it was found that most of the respondents are advance and proficient in computer usage. As constraints to ICT usage, the study respondents still experienced slow internet bandwidth that makes connection and communication weak along with the low income status. Consequently, it was found that there were no significant differences in terms of skills and constraints among barangay secretaries and barangay treasurers towards using ICT. It can be concluded that study respondents prefer to use office computer to access the information they need due to the convenience and availability of resources. The study respondents were competent enough to handle their job well but listed slow internet and low financial resources may hamper their ICT usage. Research implications were also offered.

A Study on The Internet Connectivity in The Philippines

  • Salac, Romeo Agan;Kim, Yun Seon
    • Asia Pacific Journal of Business Review
    • /
    • v.1 no.1
    • /
    • pp.67-88
    • /
    • 2016
  • This study aims to help address concerns about the growing demand of wider bandwidth Internet connection in the Philippines. Using articles and research of international organizations and content from official websites of the Philippine government, this paper has carefully examined the slow Internet connectivity and the high cost that the end-users pay for it. This paper suggests that this inefficiency hampers the motivation of users to innovate in a way that could contribute to inclusive growth and the development of an inclusive information society. Through a comparison of the current global ICT situation with the current situation in the Philippines, this paper shows that the country's Internet infrastructure lags behind among those of contemporary developing countries in Asia, particularly in terms of Internet connectivity. In 2015, Thailand had an average Internet speed of 7.4 Mbps, Sri Lanka 7.4, and Malaysia 4.3. Meanwhile, the Philippines had a meager average Internet speed of 2.8 Mbps, placing the country at 104 among 160 countries, with developed countries in Asia such as South Korea (23.6 Mbps) and Singapore (12.9 Mbps) ranking 1 and 12, respectively. Findings show that the lack of competition in the Internet connectivity market, among other reasons, is at the root of the dilemma of slow and costly Internet connection. Assessing the accomplishments of the Republic of Korea and other broadband-leading countries has provided practical insights and recommendations that can promote competitiveness. Furthermore, related literature argues how ISP practices may affect Internet speed and cost. This study offers an approach in improving Internet connectivity in the Philippines by bridging the gap between the Internet infrastructure market and government policies.

Still image comunications on the internet using the wavelet image compression technique (웨이블릿 영상 압축 기법을 이용한 인터넷에서의 정지영상 서비스)

  • 신무균;정제창;김민구
    • Journal of Broadcast Engineering
    • /
    • v.4 no.1
    • /
    • pp.12-21
    • /
    • 1999
  • Without a question. the most significant new medium for transmitting information is the Internet. Unfortunately. the multimedia elements that enrich our titles are extremely bulky. While the Internet hype is available in unlimited supply. Internet bandwidth and functionality of web browser are not making the net quite hospitable to multimedia data formats. In this thesis. for smoother and better communications over the net. a study is done on still image compression techniques. based on wavelet transform which is selected on MPEG-4 as a still image compression standard and a strong candidate for the JPEG-2000 standard. For Internet service. the study of plug-in programming and ActiveX control is implemented to enrich the functionality of web browser. As a result. the proposed still image service gives better image quality than current standard JPEG and does not yield to the common blocking artifacts.

  • PDF