Multipoint communication by hierarchically encoded data
Shacham, N.
INFOCOM apos;92. Eleventh Annual Joint Conference of the IEEE Computer and Communications Societies, IEEE
Volume , Issue , 4-8 May 1992 Page(s):2107 - 2114 vol.3
Digital Object Identifier 10.1109/INFCOM.1992.263483
Summary:A novel multipoint communication paradigm, in which each
destination receives a subset of the source's signal that corresponds to
that destination's terminal and access bandwidth constraints, is
presented. The approach to realizing this paradigm is based on
integration of layered coding of the source's signal, routing based on
bandwidth demand, optimization of signal parameters, and layered error
control. The author gives an overview of several hierarchical signal
coding techniques; presents methods for finding maximum bandwidth
available to destination, establishing maximum-bandwidth routes; and
optimally assigns bandwidth to the signal layers to maximize overall
reception quality. Error control procedures whereby the network, source,
and destinations cooperate to maintain layered-based data integrity,
using erasure recovery coding and prioritized packet detection are also
presented
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