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Reliable broadcasting data grouping system and method under specific network environment

A technology of data grouping and network environment, which is applied in the field of broadcasting system and can solve problems such as data transmission delay

Inactive Publication Date: 2004-09-22
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because ACKs must be received from all neighboring nodes, whenever a data packet moves from one hop to another, the time required to broadcast the data causes the unit time to increase proportionally to the number of neighboring nodes, therefore, the use of ACK greatly delays data transmission

Method used

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  • Reliable broadcasting data grouping system and method under specific network environment
  • Reliable broadcasting data grouping system and method under specific network environment
  • Reliable broadcasting data grouping system and method under specific network environment

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Experimental program
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Embodiment Construction

[0044] Preferred embodiments of the present invention are described in more detail below with reference to the accompanying drawings of the present invention.

[0045] 7 is a schematic block diagram of a system for reliably broadcasting data packets in an ad hoc network environment in accordance with one embodiment of the present invention. The system includes a receiving unit 100 , a storage unit 110 , a comparing unit 120 , a sending unit 130 and a control unit 140 .

[0046] The receiving unit 100 receives data packets and management packets broadcast by a predetermined node. Here, the data packets contain various information such as the Internet Protocol (IP) addresses of neighboring nodes, relay nodes, link status, and relay node serial numbers, etc., and the management packets refer to general information for sharing ad hoc networks Instead, packets sent (eg, IEEE 802.11a beacons), packets sent for entering or leaving an ad hoc network, and the like. Here, the best exa...

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PUM

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Abstract

A system for reliably broadcasting a data packet under an ad-hoc network environment including a determining unit for determining whether or not at least one node receiving the broadcast data packet is a relay node, a comparing unit for comparing a first relay node sequence number contained in a management packet which the node transmits with a second relay node sequence number stored in a neighbor table of the node, and a control unit for determining whether or not the data packet is retransmitted to the node according to a result of the comparison of the comparing unit. By comparing the second relay node sequence number stored in the neighbor table of the node which has broadcast the data packet with the first relay node sequence numbers transmitted through a Hello packet, it is possible to check whether or not the data packet is lost during broadcasting, and thus it is possible to reduce a loss factor of the data packet which is generated during broadcasting. Thereby, the data packet can be reliably broadcast.

Description

technical field [0001] The present invention relates to a reliable broadcasting system and an operation method thereof in an ad-hoc network environment, and more particularly to a reliable broadcasting of data packets in an ad-hoc network environment, thereby reducing the need for an ad-hoc network environment. System and method for any loss of data packets and overloading of the entire system. Background technique [0002] Generally, a mobile ad hoc network is used to provide multi-hop-based communication services to mobile terminals connected by wireless links, whereby a network between wireless terminals can be constructed in a non-infrastructure environment. [0003] Due to the inherent nature of wireless multi-hop, these mobile ad hoc networks have a wide interface area in which mobile nodes overlap. Within these overlapping regions, collisions between data in the air are likely to occur during data transmission / reception. To avoid such collisions, a channel reservati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/28H04L12/18H04W4/06H04W28/02H04W74/08H04W84/12H04W84/18
CPCH04W40/00H04L12/1868H04L12/189H04W40/248
Inventor 赵晟娟辛镇炫文炳人
Owner SAMSUNG ELECTRONICS CO LTD