منابع مشابه
Network Coding for $3$s$/n$t Sum-Networks
A sum-network is a directed acyclic network whereeach source independently generates one symbol from a givenfield F and each terminal wants to receive the sum (over F)of the source symbols. For sum-networks with two sources ortwo terminals, the solvability is characterized by the connectioncondition of each source-terminal pair [3]. A necessary andsufficient condition fo...
متن کاملSum-networks: system of polynomial equations, reversibility, insufficiency of linear network coding, unachievability of coding capacity
A directed acyclic network is considered where all the terminals demand the sum of the symbols generatedat all the sources. We call such a network as a sum-network. It is shown that there exists a solvably (and linearsolvably) equivalent sum-network for any multiple-unicast network (and more generally, for any acyclic directednetwork where each terminal node demands a subset of ...
متن کاملSum-networks: System of polynomial equations, unachievability of coding capacity, reversibility, insufficiency of linear network coding
We consider a directed acyclic network where all the terminals demand the sum of the symbols generated at all the sources. We call such a network as a sum-network. We show that there exists a solvably (linear solvably) equivalent sum-network for any multiple-unicast network (and more generally, for any acyclic directed network where each terminal node demands a subset of the symbols generated a...
متن کاملClassifying Networks for Network Coding
Network coding is a relatively recent development in the realm of maximizing information transfer in communications and computer networks. Traditional networks operate by simply storing and forwarding data along. Network coding, however, allows intermediate network nodes to combine data using arithmetic operations. In many instances, this can lead to more efficient use of network resources. Sin...
متن کاملNetwork Coding for Wireless Networks
The main idea in network coding was introduced in 2000 by Ahlswede et al. With network coding, an intermediate node can not only forward its incoming packets but also encode them. It has been shown that the use of network coding can enhance the performance of wired networks significantly. Recent works have indicated that network coding can also offer significant benefits for wireless networks. ...
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ژورنال
عنوان ژورنال: IEEE Transactions on Information Theory
سال: 2012
ISSN: 0018-9448,1557-9654
DOI: 10.1109/tit.2011.2169532