Protocol Layers and Sub-topics
| The OSI model |
|---|
| 7 Application layer |
| 6 Presentation layer |
| 5 Session layer |
| 4 Transport layer |
| 3 Network layer |
| 2 Data link layer |
|
| 1 Physical layer |
Courses and textbooks in the field of data transmission typically deal with the following OSI model protocol layers and topics:
- Layer 1, the physical layer:
- Channel coding including
- Digital modulation schemes
- Line coding schemes
- Forward error correction (FEC) codes
- Bit synchronization
- Multiplexing
- Equalization
- Channel models
- Channel coding including
- Layer 2, the data link layer:
- Channel access schemes, media access control (MAC)
- Packet mode communication and Frame synchronization
- Error detection and automatic repeat request (ARQ)
- Flow control
- Layer 6, the presentation layer:
- Source coding (digitization and data compression), and information theory.
- Cryptography (may occur at any layer)
Read more about this topic: Data Transmission
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