MULTICAST Multicast IGMP Internet Group Management Protocol Multicast

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MULTICAST Χαρακτηριστικά Multicast • IGMP (Internet Group Management Protocol) • Multicast groups • Κατοχυρωμένη

MULTICAST Χαρακτηριστικά Multicast • IGMP (Internet Group Management Protocol) • Multicast groups • Κατοχυρωμένη διεύθυνση Class D (224. 0. 0. 0 ~ 239. 255) Αλγόριθμοι προώθησης multicast πακέτων • Flooding • Spanning Trees - Constrained Steiner Trees • Reverse Path Broadcasting • Truncated Reverse Path Broadcasting • Reverse Path Multicasting • Shortest Path Trees • Core Based Trees

ΣΥΜΠΙΕΣΗ ΔΕΔΟΜΕΝΩΝ Μορφές Συμπίεσης Hardware (CODEC) Software (ειδικοί αλγόριθμοι) Lossy (με απώλειες) Lossless (χωρίς

ΣΥΜΠΙΕΣΗ ΔΕΔΟΜΕΝΩΝ Μορφές Συμπίεσης Hardware (CODEC) Software (ειδικοί αλγόριθμοι) Lossy (με απώλειες) Lossless (χωρίς απώλειες) Ως προς την μέθοδο Ως προς την ποιότητα Τεχνικές Συμπίεσης Ήχου • PCM (Pulse Code Modulation) A-law PCM - mu-law PCM • ADPCM (Adaptive Differential Pulse Code Modulation) • LPC (Linear Predictive Coding) - CELP (Code Excited Linear Prediction) • MPEG Audio Layer III, IV

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