Yw. Leung et Ts. Yum, A MODULAR MULTIRATE VIDEO DISTRIBUTION-SYSTEM - DESIGN AND DIMENSIONING, IEEE/ACM transactions on networking, 2(6), 1994, pp. 549-557
A modular architecture is proposed for distributing broadcast and swit
ched video. The architecture consists of a set of concentration buses
(or input buses), a TDM-based bus matrix and a set of distribution bus
es (or output buses). The transmission time in each output bus is divi
ded into fixed size frames. Dedicated time slots in a frame are reserv
ed for broadcast video. The remaining time slots are allocated to swit
ched video on a first-come-first-served basis. Videos are switched via
time slot assignments which determine the connections within the bus
matrix. Two slot assignment algorithms are designed, one for point-to-
point transmissions and the other for point-to-multipoint transmission
s. The advantages of this architecture include: 1) accommodation of mu
ltirate video, 2) support of video broadcasting and multicasting, and
3) modular growth at distributed locations.