Journal ArticleDOI
A Channel Access Protocol for Integrated Voice/Data Applications
Chin-Tau Lea,J.S. Meditch +1 more
TLDR
In this paper, a new multiaccess protocol is proposed for an integrated voice/data application, which is a variation of virtual time CSMA (VT-CSMA), taking advantage of the periodicity of voice packets and possesses a number of important features.Abstract:
A new multiaccess protocol is proposed for an integrated voice/data application. The protocol, which is a variation of virtual time CSMA (VT-CSMA), takes advantage of the periodicity of voice packets and possesses a number of important features. With this protocol, voice stations appear to have a dedicated time-division multiplexed (TDM) slot, and the delay of a voice packet is bounded by the length of a frame (defined to be the period between two consecutive voice packets from a voice station). Also, the amount of data added to the channel has little effect on the voice traffic. When silence detection is used, many more voice conversations can be supported without losing the dedicated-slot characteristic. This is in contrast to a movingboundary TDM system where the excessive bandwidth saved by silence detection can only be used for data. The protocol requires no global synchronization and is easy to implement. Simulation results are presented to evaluate its performance.read more
Citations
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Journal ArticleDOI
Media access techniques: the evolution towards terabit/s LANs and MANs
TL;DR: This paper tracks the evolution of the diverse media access techniques used in standardized, experimental and proposed networks through three technology generations, giving a concise characterization ofThe diverse access protocols and providing pointers to the related literature.
Real-time communication protocols: an overview
Ferdy Hanssen,Pierre G. Jansen +1 more
TL;DR: In this paper, the authors describe several existing data link layer protocols that provide real-time capabilities on wired networks, focusing on token-ring and Carrier Sense Multiple Access based networks Existing modifications to provide better realtime capabilities and performance are also described.
Journal ArticleDOI
Prioritized-virtual-time CSMA: head-of-the-line priority classes without added overhead
TL;DR: The prioritized-virtual-time carrier sense multiple access (PVT-CSMA) protocol is a media access algorithm for cable- and radio-based local area networks that incorporates message-based priority classes.
Proceedings ArticleDOI
RTnet: a distributed real-time protocol for broadcast-capable networks
TL;DR: RTnet is a distributed real-time network protocol, to be used on fully-connected local area networks with a broadcast capability, that allows the use of standard real- time scheduling paradigms to control network traffic, allows dynamic scheduling and is flexible in stream handling.
Journal ArticleDOI
A model for a broadband cellular wireless network for digital communications
TL;DR: A method for incorporating mobile end-systems into an existing packet-switched internetwork with the minimum of disruption to pre-existing hardware and software is described.
References
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Journal ArticleDOI
Packet Switching in Radio Channels: Part I--Carrier Sense Multiple-Access Modes and Their Throughput-Delay Characteristics
TL;DR: Two protocols are described for CSMA and their throughput-delay characteristics are given and results show the large advantage CSMA provides as compared to the random ALOHA access modes.
Journal ArticleDOI
Ethernet: distributed packet switching for local computer networks
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Journal ArticleDOI
Multiaccess Protocols in Packet Communication Systems
TL;DR: This paper gives a unified presentation of the various multiaccess techniques and discusses their applicability to different enivironments, namely, satellite channels, local area communication networks and multihop store-and-forward broadcast networks, and their applicable to different types of data traffic, namely stream traffic and bursty traffic.
Journal ArticleDOI
A technique for investigating on-off patterns of speech
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Journal ArticleDOI
Virtual Time CSMA: Why Two Clocks Are Better than One
Mart Molle,Leonard Kleinrock +1 more
TL;DR: A new carrier sense multiple access (CSMA) algorithm, called virtual time CSMA, is described and analyzed, which uses a novel approach to granting access to the shared broadcast channel based on variable-rate clocks.
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