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Course notes from a 3rd-year course on computer networks offered by the University of Cape Town. Volume 1, Edition 7.1

Course notes from a 3rd-year course on computer networks offered by the University of Cape Town. Volume 1, Edition 7.1

Course notes from a 3rd-year course on computer networks offered by the University of Cape Town. Volume 1, Edition 7.1

The suitability of the language GPSS for discrete event simulation of computer communication networks is investigated. Capabilities and peculiarities of GPSS are examined, and sample simulation results for four ring network link level protocol models are presented. Translation of models from one dialect of GPSS to another is discussed, and certain inherent semantic differences are identified. (Author)

During the 1982/83 first year performance-period under this Grant, research investigations have been carried out leading to significant results, of both theoretical and practical importance. A large multitude of computer communication network architectures, models and control schemes have been developed, analyzed and evaluated. In particular, results have been obtained in the following areas: priority-based Time Division Multiple Access schemes; dynamic random-access procedures, with applications to local area networks and to local distribution and packet-radio networks; hybrid multiple-access schemes; polling, adaptive polling and probing access-control techniques; buffer capacity constrained multi-access systems; network topological analysis; local area network topological analysis; local area network protocols; integrated packet and circuit networks;integrated routing and flow control.

During the 1982/83 first year performance-period under this Grant, research investigations have been carried out leading to significant results, of both theoretical and practical importance. A large multitude of computer communication network architectures, models and control schemes have been developed, analyzed and evaluated. In particular, results have been obtained in the following areas: priority-based Time Division Multiple Access schemes; dynamic random-access procedures, with applications to local area networks and to local distribution and packet-radio networks; hybrid multiple-access schemes; polling, adaptive polling and probing access-control techniques; buffer capacity constrained multi-access systems; network topological analysis; local area network topological analysis; local area network protocols; integrated packet and circuit networks;integrated routing and flow control.

This research investigates and evaluates routing procedures for large store-and-forward message switched computer communication networks. Existing network topologies are examined. An adaptive routing algorithm is developed dealing with message routing when the full length message is transmitted in its entirety. A thresholding technique is used to work with variations in message length. The algorithm's performance is evaluated by comparison with the performance of the exact mathematical deterministic routing problem. In order to apply the routing strategy to large networks, a partitioning approach is used. A partitioning algorithm is developed for communications network topologies. This algorithm uses a generalized labeling technique to find the appropriate partitions of the original network. The adaptive routing algorithm is modified in order to take into account large network considerations. Then it is applied to the partitioned network in a two-level hierarchical structure. The exact two-level modified adaptive routing algorithm is described. Some new network topologies found in the literature are examined from the routing problem point of view. All the algorithms are tested by computer simulation. The adaptive routing algorithms have been implemented using two different simulation languages. (Author)

During the 1982-1984 performance-period under this AFOSR Grant, we have carried out research investigations and obtained many significant results, of both theoretical and practical importance. A large multitude of computer communication network architectures, models and control schemes have been developed, analyzed and evaluated. In particular, results have been obtained in the following areas: priority-based TDMA schemes; dynamic random-access procedures, with applications to local area networks, metropolitan-area networks and packet-radio networks; hybrid multiple-access schemes; polling, adaptive polling and probing access-control techniques; buffer capacity constrained multi-access systems; network topological anlaysis; poling networks under unbalanced traffic conditions; performance of token-ring and token-bus local area networks; terminal-priority based contentionless access-control algorithms; queueing and telecommunication systems subject to traffic activity mode changes; local area network architectures and protocols for the integration of data/voice/video; integrated packet and circuit switched networks; integrated routing and flow control algorithms in computer networks. (Author)

Includes index

Includes index

Includes bibliographical references (pages 460-464) and index

This thesis examines design criteria related to development of local and wide area networks for command, control, and communications (C3) systems, especially as such networks could be used by the Navy of the Republic of China, Taiwan. This study stresses the usefulness of modern computer networks and the importance of considering human factors and artificial intelligence systems during design of these networks. Various network technologies and communication methodologies used for local area networks (LANs) and wide area networks (WANs) are explored. Unified network systems for shore-based and ship-based systems and the integration of these systems are discussed. Information is included to provide Republic of China Navy officers with an awareness of how computer networks can improve C3 functions and make the military more efficient during both peacetime and wartime.

This thesis examines design criteria related to development of local and wide area networks for command, control, and communications (C3) systems, especially as such networks could be used by the Navy of the Republic of China, Taiwan. This study stresses the usefulness of modern computer networks and the importance of considering human factors and artificial intelligence systems during design of these networks. Various network technologies and communication methodologies used for local area networks (LANs) and wide area networks (WANs) are explored. Unified network systems for shore-based and ship-based systems and the integration of these systems are discussed. Information is included to provide Republic of China Navy officers with an awareness of how computer networks can improve C3 functions and make the military more efficient during both peacetime and wartime.

This thesis examines design criteria related to development of local and wide area networks for command, control, and communications (C3) systems, especially as such networks could be used by the Navy of the Republic of China, Taiwan. This study stresses the usefulness of modern computer networks and the importance of considering human factors and artificial intelligence systems during design of these networks. Various network technologies and communication methodologies used for local area networks (LANs) and wide area networks (WANs) are explored. Unified network systems for shore-based and ship-based systems and the integration of these systems are discussed. Information is included to provide Republic of China Navy officers with an awareness of how computer networks can improve C3 functions and make the military more efficient during both peacetime and wartime.

This thesis examines design criteria related to development of local and wide area networks for command, control, and communications (C3) systems, especially as such networks could be used by the Navy of the Republic of China, Taiwan. This study stresses the usefulness of modern computer networks and the importance of considering human factors and artificial intelligence systems during design of these networks. Various network technologies and communication methodologies used for local area networks (LANs) and wide area networks (WANs) are explored. Unified network systems for shore-based and ship-based systems and the integration of these systems are discussed. Information is included to provide Republic of China Navy officers with an awareness of how computer networks can improve C3 functions and make the military more efficient during both peacetime and wartime.

During the 1982-1984 performance-period under this AFOSR Grant, we have carried out research investigations and obtained many significant results, of both theoretical and practical importance. A large multitude of computer communication network architectures, models and control schemes have been developed, analyzed and evaluated. In particular, results have been obtained in the following areas: priority-based TDMA schemes; dynamic random-access procedures, with applications to local area networks, metropolitan-area networks and packet-radio networks; hybrid multiple-access schemes; polling, adaptive polling and probing access-control techniques; buffer capacity constrained multi-access systems; network topological anlaysis; poling networks under unbalanced traffic conditions; performance of token-ring and token-bus local area networks; terminal-priority based contentionless access-control algorithms; queueing and telecommunication systems subject to traffic activity mode changes; local area network architectures and protocols for the integration of data/voice/video; integrated packet and circuit switched networks; integrated routing and flow control algorithms in computer networks. (Author)

During the 1982/83 first year performance-period under this Grant, research investigations have been carried out leading to significant results, of both theoretical and practical importance. A large multitude of computer communication network architectures, models and control schemes have been developed, analyzed and evaluated. In particular, results have been obtained in the following areas: priority-based Time Division Multiple Access schemes; dynamic random-access procedures, with applications to local area networks and to local distribution and packet-radio networks; hybrid multiple-access schemes; polling, adaptive polling and probing access-control techniques; buffer capacity constrained multi-access systems; network topological analysis; local area network topological analysis; local area network protocols; integrated packet and circuit networks;integrated routing and flow control.

During the 1982/83 first year performance-period under this Grant, research investigations have been carried out leading to significant results, of both theoretical and practical importance. A large multitude of computer communication network architectures, models and control schemes have been developed, analyzed and evaluated. In particular, results have been obtained in the following areas: priority-based Time Division Multiple Access schemes; dynamic random-access procedures, with applications to local area networks and to local distribution and packet-radio networks; hybrid multiple-access schemes; polling, adaptive polling and probing access-control techniques; buffer capacity constrained multi-access systems; network topological analysis; local area network topological analysis; local area network protocols; integrated packet and circuit networks;integrated routing and flow control.

During the 1982-1985; performance-period under this AFOSR Grant, we have carried out research investigations and obtained many significant results, of both theoretical and practical importance. A large multitude of computer communication network architectures, models and control schemes have been developed, analyzed and evaluated.

This thesis examines design criteria related to development of local and wide area networks for command, control, and communications (C3) systems, especially as such networks could be used by the Navy of the Republic of China, Taiwan. This study stresses the usefulness of modern computer networks and the importance of considering human factors and artificial intelligence systems during design of these networks. Various network technologies and communication methodologies used for local area networks (LANs) and wide area networks (WANs) are explored. Unified network systems for shore-based and ship-based systems and the integration of these systems are discussed. Information is included to provide Republic of China Navy officers with an awareness of how computer networks can improve C3 functions and make the military more efficient during both peacetime and wartime.

This thesis examines design criteria related to development of local and wide area networks for command, control, and communications (C3) systems, especially as such networks could be used by the Navy of the Republic of China, Taiwan. This study stresses the usefulness of modern computer networks and the importance of considering human factors and artificial intelligence systems during design of these networks. Various network technologies and communication methodologies used for local area networks (LANs) and wide area networks (WANs) are explored. Unified network systems for shore-based and ship-based systems and the integration of these systems are discussed. Information is included to provide Republic of China Navy officers with an awareness of how computer networks can improve C3 functions and make the military more efficient during both peacetime and wartime.

This thesis examines design criteria related to development of local and wide area networks for command, control, and communications (C3) systems, especially as such networks could be used by the Navy of the Republic of China, Taiwan. This study stresses the usefulness of modern computer networks and the importance of considering human factors and artificial intelligence systems during design of these networks. Various network technologies and communication methodologies used for local area networks (LANs) and wide area networks (WANs) are explored. Unified network systems for shore-based and ship-based systems and the integration of these systems are discussed. Information is included to provide Republic of China Navy officers with an awareness of how computer networks can improve C3 functions and make the military more efficient during both peacetime and wartime.