Change search
ReferencesLink to record
Permanent link

Direct link
Two Protocols with Heterogeneous Real-Time Services for High-Performance Embedded Networks
SP - Technical Research Institute of Sweden Department of Electronics, Borås, Sweden.
Halmstad University, School of Information Science, Computer and Electrical Engineering (IDE), Halmstad Embedded and Intelligent Systems Research (EIS), Centre for Research on Embedded Systems (CERES).ORCID iD: 0000-0002-6526-3931
2012 (English)Report (Other academic)
Abstract [en]

High-performance embedded networks are found in computer systems that perform applications such as radar signal processing and multimedia rendering. The system can be composed of multiple computer nodes that are interconnected with the network. Properties of the network such as latency and speed affect the performance of the entire system. A node´s access to the network is controlled by a medium access protocol. This protocol decides e.g. real-time properties and services that the network will offer its users, i.e. the nodes. Two such network protocols with heterogeneous real-time services are presented. The protocols offer different communication services and services for parallel and distributed real-time processing. The latter services include barrier synchronisation, global reduction and short message service. A network topology of a unidirectional pipelined optical fibre-ribbon ring is assumed for both presented protocols. In such a network several simultaneous transmissions in non-overlapping segments are possible. Both protocols are aimed for applications that require a high-performance embedded network such as radar signal processing and multimedia. In these applications the system can be organised as multiple interconnected computation nodes that co-operate in parallel to achieve higher performance. The computing performance of the whole system is greatly affected by the choice of network. Computing nodes in a system for radar signal processing should be tightly coupled, i.e., communications cost, such as latency, between nodes should be small. This is possible if a suitable network with an efficient protocol is used. The target applications have heterogeneous real-time requirements for communication in that different classes of data-traffic exist. The traffic can be classified according to its requirements. The proposed protocols partition data-traffic into three classes with distinctly different qualities. These classes are: traffic with hard real-time demands, such as mission critical commands; traffic with soft real-time demands, such as application data (a deadline miss here only leads to decreased performance); and traffic with no real-time constraints at all. The protocols are analysed and performance is tested through simulation with different data-traffic patterns.

Place, publisher, year, edition, pages
Halmstad: Halmstad University , 2012. , 51 p.
, Research Report, School of Information Science, Computer and Electrical Engineering (IDE)
Keyword [en]
Optical, Ring, Pipeline, Distributed, Parallel-Processing, Real-time, SAN (System Area Network), Heterogeneous, Service, Medium Access Protocol
National Category
Computer Systems
URN: urn:nbn:se:hh:diva-21296OAI: diva2:600463
Available from: 2013-05-14 Created: 2013-01-24 Last updated: 2014-11-19Bibliographically approved

Open Access in DiVA

2012_Report_TwoProt.pdf(304 kB)332 downloads
File information
File name FULLTEXT01.pdfFile size 304 kBChecksum SHA-512
Type fulltextMimetype application/pdf

Search in DiVA

By author/editor
Jonsson, Magnus
By organisation
Centre for Research on Embedded Systems (CERES)
Computer Systems

Search outside of DiVA

GoogleGoogle Scholar
Total: 332 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 124 hits
ReferencesLink to record
Permanent link

Direct link