Information Communications
1.[정보통신공학] 1. Data Communications, Data Networks, and the Internet
Data Communications: transmission of signals. reliable, efficient manner. (telecommunication도 요즘 같은 의미로 사용) "directly connected"컴퓨터 통신: Communication
2.[정보통신공학] 2. Protocol Architecture, TCP/IP, and Internet-Based Applications
필요성source must activate communicationss path or inform network of destinationsource must make sure that destination is prepared to receive data 데이터 받을
3.[정보통신공학] 4. Transmission Media
Guided media: wired / Unguided media: wirelessDesign factorsbandwidth: bandwidth ⬆ data rate ⬆transmission impairments: attenuation, attenuation disto
4.[정보통신공학] 6. Digital data communication techniques
Data are transmitted one character at a timetiming은 각 char에만 유지됨. receiver가 각 char를 resynchronize함bit error: 이전/이후 비트를 잘못 샘플framing error: 이전/이후 프레임 잘
5.[정보통신공학] 7. Data link control protocols
Data link control protocol requirements \- frame synchronization \- flow control \- error control \- addressing \- control and data on sam
6.[정보통신공학] 9. WAN Technology and Protocols
Switched Communication Networks Circuit Switching Networks Softswitch Architecture Packet Switching Networks Asynchronous Transfer Mode(ATM)
7.[정보통신공학] 11. Local Area Network Overview
Local Area Networks (LANs) Topology: way in which the endpoints, or stations, attached to the network are interconnected Tree and Bus Topologies Use o
8.[정보통신공학] 12. Ethernet
IEEE 802 Standards Ethernet Ethernet: most widely used LAN developed by IEEE 802.3 carrier sense multiple access with collision detection (CSMA
9.[정보통신공학] 13. Wireless LAN
Wireless LAN Wireless LAN Configuration Control Module (CM) acts as an interface to a WLAN includes either bridge or router functionality to link