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Mobile P2P (peer-to-peer) node selection method and system in heterogeneous wireless network

A heterogeneous wireless network and wireless network technology, applied in the field of network communication, can solve problems such as applicability cannot meet the needs of node selection, and achieve the effect of improving business experience, ensuring stability, and improving utilization

Inactive Publication Date: 2014-03-26
INST OF ACOUSTICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of these algorithms are based on homogeneous wireless networks, and their applicability obviously cannot meet the node selection requirements under the overlapping coverage of multiple heterogeneous wireless networks.

Method used

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  • Mobile P2P (peer-to-peer) node selection method and system in heterogeneous wireless network
  • Mobile P2P (peer-to-peer) node selection method and system in heterogeneous wireless network
  • Mobile P2P (peer-to-peer) node selection method and system in heterogeneous wireless network

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0083] For file sharing and simple data transfer service methods, the specific steps are as follows:

[0084] 1) This type of service mainly focuses on the amount of data transmission within a certain period of time, and has higher requirements for data transmission speed, but lower requirements for connection stability and real-time performance. Therefore, we can define the evaluation function as follows:

[0085] F n = B peer B base - - - ( 1 )

[0086] f p =B up (2)

[0087] Among them, B peer Indicates the bandwidth already occupied by the node, B base Indicates the total bandwidth of the current network, B up Indicates the maximum upload bandwidth of the current node.

[0088] 2) Update the current network status and node information;

[0...

Embodiment 2

[0100] For the implementation of the streaming media service method, the specific steps are as follows:

[0101] 1) This type of service mainly focuses on the stability of the connection and the real-time performance of the data, so we can define the following evaluation function:

[0102] F n R i V ( Net . no , Node . no ) - - - ( 3 )

[0103] Fp=Bup (4)

[0104] Among them, R i Indicates the radius of the network, V(Net.no, Node.no) indicates the moving speed of the node, B up Indicates the maximum upload bandwidth of the current node.

[0105] 2) Update the current network status and node informa...

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Abstract

The invention provides a mobile P2P node selection method in a heterogeneous wireless network. The method comprises the following steps: (101) when certain mobile node in a plurality of wireless networks transmits a service request, selecting a network from all wireless networks covering the node according to the type of a requested service; (102) further selecting a node with the highest service ability from the selected wireless network for the service request node to serve as the P2P node for providing service to the service request node, wherein the node service ability comprises uplink bandwidth information, storage capability and time. The (101) step also comprises the following steps of collecting the state information of all wireless networks covering each region as well as service ability parameter information of all nodes in each wireless network by using network monitor strategy. On the basis of ensuring the user' service experience, the reasonable distribution of network resources is realized, and the utilization rate of the network resources is improved greatly.

Description

technical field [0001] The invention relates to the field of network communication, in particular to a method and system for selecting a mobile P2P node in a heterogeneous wireless network. Background technique [0002] With the rapid development of global information technology and the widespread popularization of mobile communications and the Internet, P2P technology has become more and more popular and widely used. It breaks the traditional "client / server" model in the past, and any two network nodes can share files and transmit messages, and there is no distinction between client and server. From the popular music sharing software Napster in 1999, to the emergence of structured P2P network Chord\CAN\Pastry in 2001, to some familiar network software such as BitTorrent, Skype, eMule, Anysee, pplive, etc., P2P In just a few years from its creation to the present, the network has gained widespread attention and success in the application field and academia, and has occupied...

Claims

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Application Information

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IPC IPC(8): H04W48/20H04W76/02
Inventor 任首首刘银龙周旭唐晖慈松
Owner INST OF ACOUSTICS CHINESE ACAD OF SCI
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