Publication

Achievable Flows on Orthogonal Information Networks

2008
Conference Papers

Abstract

We examine routing over two classes of orthogonal information networks. The first is a relay network with orthogonal inputs. The nodes in this network do not broadcast, but communicate to the different nodes via independent inputs. There is multiple access interference at every node. The second network is the Gaussian broadcast network with no interference. The nodes in this network broadcast, but the signals from the different transmitter nodes do not interfere at any receiver node. Such models can be motivated by communication schemes which use non overlapping time/frequency slots and which selectively ignore the effect of interference. Inner bounds to the capacity region for both classes of networks are obtained using modified max-flow theorems.

Official source

https://infoscience.epfl.ch/entities/publication/1c5f2a2e-1014-4a8d-8c79-333848f768bd

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2008
Conference Papers

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/1c5f2a2e-1014-4a8d-8c79-333848f768bd

About this result

Related concepts (32)

Orthogonal frequency-division multiplexing

In telecommunications, orthogonal frequency-division multiplexing (OFDM) is a type of digital transmission used in digital modulation for encoding digital (binary) data on multiple carrier frequencies. OFDM has developed into a popular scheme for wideband digital communication, used in applications such as digital television and audio broadcasting, DSL internet access, wireless networks, power line networks, and 4G/5G mobile communications. OFDM is a frequency-division multiplexing (FDM) scheme that was introduced by Robert W.

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Time-division multiple access (TDMA) is a channel access method for shared-medium networks. It allows several users to share the same frequency channel by dividing the signal into different time slots. The users transmit in rapid succession, one after the other, each using its own time slot. This allows multiple stations to share the same transmission medium (e.g. radio frequency channel) while using only a part of its channel capacity.

Network topology

Network topology is the arrangement of the elements (links, nodes, etc.) of a communication network. Network topology can be used to define or describe the arrangement of various types of telecommunication networks, including command and control radio networks, industrial fieldbusses and computer networks. Network topology is the topological structure of a network and may be depicted physically or logically. It is an application of graph theory wherein communicating devices are modeled as nodes and the connections between the devices are modeled as links or lines between the nodes.

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