نتایج جستجو برای: linear network coding
تعداد نتایج: 1226075 فیلتر نتایج به سال:
Network coding is an elegant and novel technique introduced at the turn of the millennium to improve network throughput and performance. It is expected to be a critical technology for networks of the future. This tutorial addresses the first most natural questions one would ask about this new technique: how network coding works and what are its benefits, how network codes are designed and how m...
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We consider a base-station broadcasting a set of order-insensitive packets to a user population over packeterasure channels. To improve efficiency we propose relayaided transmission using instantaneously-decodable binary network coding. The proposed coding schemes have the benefits of minimal decoding delay and low complexity. We further analyze the performance of the resulting broadcast scheme...
We consider energy savings offered by network coding for multiple unicast in wireless networks. For d-dimensional wireless networks it is shown that the maximum possible benefit is at least 2d/⌊ √ d⌋.
In this paper we show how linear network coding can reduce the number of queries needed to retrieve one specific message among k distinct ones replicated across a large number of randomly accessed nodes storing one message each. Without network coding, this would require k queries on average. After proving that no scheme can perform better than a straightforward lower bound of 0.5k average quer...
The marriage of network coding and wireless packet networks is a natural and attractive one. So, despite network coding being a still nascent field, a considerable body of work on this subject already exists. In this paper, we give a brief overview of this work and hope, thereby, to provide the reader with a firm theoretical basis from which practical implementations and theoretical extensions ...
In this paper, we propose a new cooperation model for discrete memoryless multiple access channels (DM-MACs). While in prior cooperation models (e.g., DM-MAC with conferencing encoders) the increase in a network’s sum-capacity that results from cooperation is no more than the rate introduced by the cooperation mechanism, we show that in our model for a particular sequence of channels, the incre...
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