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| Višestruki pristup sa senzorskim nosiocem i izbegavanjem sudara (CSMA/CA)× | Diferencirane usluge (DiffServ)× | |
|---|---|---|
| Oblast | Telekomunikacije | Telekomunikacije |
| Porodica | Process / pipeline | Process / pipeline |
| Godina nastanka≠ | 1990 | 1998 |
| Tvorac≠ | Phil Karn | IETF DiffServ Working Group |
| Tip≠ | random access protocol | QoS architecture |
| Temeljni izvor≠ | Karn, P. (1990). MACA—a new channel access method for packet radio. In Proceedings of the ARRL/CRRL Amateur Radio 9th Computer Networking Conference, 134-140. link ↗ | Blake, S., Black, D., Carlson, M., et al. (1998). An Architecture for Differentiated Services. RFC 2475. link ↗ |
| Drugi nazivi | medium access control, WiFi MAC | quality of service, QoS architecture |
| Srodne | 3 | 3 |
| Sažetak≠ | CSMA/CA is a random access protocol for wireless medium access control, designed to enable multiple devices to share a wireless channel while minimizing collisions. Introduced by Phil Karn in 1990, it is the foundation of WiFi (IEEE 802.11) and is now the de facto standard for unlicensed spectrum access. CSMA/CA combines carrier sensing (listen before transmit) with collision avoidance (RTS/CTS handshake) to improve channel efficiency and fairness, avoiding the efficiency loss of pure random access (Aloha). | DiffServ is a QoS architecture providing scalable, class-based service differentiation in networks. Introduced by IETF (1998), DiffServ marks packets with a Differentiated Services Code Point (DSCP) in the IP header, enabling routers to apply per-hop-behaviors (PHBs) based on markings. Unlike IntServ (which reserves resources per-flow), DiffServ is stateless and scalable to Internet scale. DiffServ remains the primary QoS mechanism in ISP and enterprise networks. |
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