Channel access method for power line carrier based media access control protocol

A channel and carrier detection technology, applied in the direction of transmitting/receiving signals using protocols, transmission modification based on link quality, wireless communication, etc., can solve the problem of increasing MAC layer overhead, and achieve the goal of reducing overhead and simplifying link addressing Effect

Inactive Publication Date: 2004-09-29
ITRAN COMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0030] On the other hand, since the header overhead and contention overhead are fixed and not dependent on the packet size, small size packets will greatly increase the overhead of the MAC layer

Method used

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  • Channel access method for power line carrier based media access control protocol
  • Channel access method for power line carrier based media access control protocol
  • Channel access method for power line carrier based media access control protocol

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Embodiment Construction

[0268] The present invention is a Power Line Carrier (PLC) based Media Access Control (MAC) protocol intended for use over many different types of communication systems and channels. The MAC protocol of the present invention is especially suitable for a noisy shared medium channel, such as a communication system based on a power line carrier. The described protocol can also be used for other media, such as wireless, infrared, twisted pair, etc., and for other applications, such as network access. The MAC protocol described is suitable for communication over power lines in different environments, including homes, offices, businesses, factories, and so on. The MAC protocol described provides an efficient channel access mechanism that enables efficient and reliable packet delivery for any type of connection, such as unicast, broadcast and multicast.

[0269] 1 Description of functions

[0270] 1.1 Architecture

[0271] A general description of the architecture of the MAC layer...

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Abstract

A novel and useful media access control (MAC) protocol that is intended for use over noisy shared media channels. The MAC protocol provides layer functionality over a network using a shared medium including a backoff mechanism for CSMA.CA channel access, link addressing that reduces the overhead of long MAC addresses, a flooding scheme having controlled exposure for broadcast transmissions, multicast transmissions using selective ACKs, implementation of traffic prioritization using an adaptive backoff scheme, a second layer repeater establishment process and multi-packet transport for short packets and fragmentation for long packet transport.

Description

technical field [0001] The present invention relates to a data communication system, more specifically, to a channel access method for a medium access control (MAC) protocol based on a power line carrier. Background technique [0002] In recent years, the entire world has witnessed an explosive increase in the demand for various types of communications and it can be predicted that this demand will increase in the future. It is expected that the power line carrier (PLC) will play a major role in providing communications in the home, SOHO, and enterprise environments. One of the main advantages of using PLC communication is that it can communicate over existing power supply lines. Networks running on traditional LAN cables require the installation of copper or fiber optic cables, which usually takes a lot of manpower and material resources. However, because the PLC network uses the existing power lines within the building, the PLC network does not require any special cabling...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B3/54H04B3/58H04L1/00H04L1/16H04L1/18H04L12/28H04L12/413H04L12/56
CPCH04B3/58H04B2203/5408H04L12/413H04W76/02H04L2001/0093H04B3/542H04L1/1848H04L1/0007H04W28/04H04L1/0021H04L1/16H04W74/08H04L1/18H04L1/0002H04W76/10
Inventor D·拉斐利M·穆什基R·加齐特Y·卡琴A·埃雷兹
Owner ITRAN COMM
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