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Performance Evaluation of Telemedicine System based on multicasting over Heterogeneous Network
1Yonsei University, Seoul, Korea (phone: 822-222-81922; fax: 822-361-9923;
Summary
Optimizing medical data transmission involves adjusting buffer size, packet size, and limiting the number of receivers to minimize network delays, especially in Asymmetric Digital Subscriber Line (ADSL) networks. These adjustments ensure efficient and reliable sharing of patient information for remote diagnosis.
Area of Science:
- Medical Informatics
- Computer Science
- Network Engineering
Background:
- Effective remote medical diagnosis relies on transmitting high-quality medical images, vital signals, and patient information.
- Teleconferencing facilitates communication between specialists for collaborative diagnosis.
- Network transmission challenges, including delay and data loss, can impede the timely transfer of critical medical data.
Purpose of the Study:
- To investigate network transmission parameters affecting medical data transfer.
- To identify optimal settings for buffer size, packet size, and the number of listeners to minimize transmission delays.
- To ensure reliable medical data transmission across various network types.
Main Methods:
- Simulated transmission of medical data (images, vital signals, patient information, teleconferencing) over different networks (ADSL, VDSL, WLAN, LAN).
- Analysis of transmission delay and data loss based on varying buffer sizes, packet sizes, and the number of connected specialists (listeners).
- Utilized Transmission Control Protocol/Internet Protocol (TCP/IP) for data transfer.
Main Results:
- Data transmission was smooth across ADSL, VDSL, WLAN, and LAN networks.
- Asymmetric Digital Subscriber Line (ADSL) exhibited the highest potential for transmission delay due to its limited bandwidth.
- Setting buffer size to 1 Mbyte and packet size to Maximum Transmission Unit (MTU) size, along with limiting listeners to fewer than six, significantly improved network efficiency and minimized delays.
Conclusions:
- Network parameter optimization is crucial for efficient medical data transmission.
- Specific adjustments, including buffer size (1 Mbyte), packet size (MTU), and listener count (<6), are recommended to mitigate transmission delays, particularly on bandwidth-constrained networks like ADSL.
- Implementing these strategies enhances the reliability of remote medical diagnosis systems.
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