Showing papers on "Cognitive network published in 1980"
TL;DR: A model that allows the computation of the approximate level of communication performance for an arbitrary packet radio network using one of a variety of protocols should prove to be a useful tool in the design and analysis of large packet radio networks where detailed analysis and simulation would prove too cumbersome.
Abstract: A model is presented that allows the computation of the approximate level of communication performance for an arbitrary packet radio network using one of a variety of protocols. The communication performance is specified in terms of the end-to-end message delays incurred for a given level of end-to-end traffic rates. The network is specified in terms of its link capacities. While the model makes a variety of assumptions to allow simple computation of the performance level, agreement within a factor of two is obtained with results from simulation. As the number of nodes in the network and its connectivity is increased, the model is expected to give better accuracy. Thus, the model should prove to be a useful tool in the design and analysis of large packet radio networks where detailed analysis and simulation would prove too cumbersome.
9 citations
TL;DR: This paper explains a philosophy for modeling the higher level communication functions into a network architecture for heterogeneous computer networks called Data Communication Network Architecture (DCNA), the logical structure of the architecture, and several protocols based on it.
Abstract: This paper explains a philosophy for modeling the higher level communication functions into a network architecture for heterogeneous computer networks called Data Communication Network Architecture (DCNA), the logical structure of the architecture, and several protocols based on it. To specify higher level protocols among computers of different types, DCNA defines a logical model of a computer network consisting of three submodels: the basic model, the logical network model, and the virtual network model. The basic model represents a logical view of the network resources, e.g., processing power, files, data bases, I/O devices, and a layered structure for the basic mechanisms for accessing such resources, which incorporate the concept of sublevels as well as levels. The logical network model describes the mechanisms for unified management of network resources. The virtual network model describes the mechanisms for using network resources. The. common use of network resources, by several sets of interrelated applications is made easier by treating the logical network and the virtual network separately. These models form the basis for the stipulation of higher level protocols, such as network management protocols, message transfer protocols, virtual terminal protocols, and virtual file system protocols.
4 citations
01 Jan 1980
TL;DR: The concept of “synchronization” is employed as an index of good organization in usual communication networks but should be relaxed though and enlarged in cognitive networks in order to incorporate dynamical deliberations taking place in “dynamic allocation” or packet — switching networks, finite state automata as well as biological, ecological economic and social systems.
Abstract: The concept of “synchronization” is employed as an index of good organization in usual (“preallocation”) communication networks; it should be relaxed though and enlarged in cognitive networks (which are hierarchical structures) in order to incorporate dynamical deliberations taking place in “dynamic allocation” or packet — switching networks, finite state automata as well as biological, ecological economic and social systems.
1 citations