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Routing mechanism for distributed hash table based overlay networks

A technology covering network and routing, applied in network topology, advanced technology, electrical components, etc., can solve problems such as exhausting the battery of mobile terminals, and achieve the effect of reducing power consumption, prolonging service life, and low cost

Inactive Publication Date: 2011-09-28
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The DHT needs to transmit data frequently over the radio interface, and thus may quickly drain the battery of the mobile terminal, since each message forces the terminal to frequently change from sleep mode to active mode (i.e. wake up)

Method used

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  • Routing mechanism for distributed hash table based overlay networks
  • Routing mechanism for distributed hash table based overlay networks
  • Routing mechanism for distributed hash table based overlay networks

Examples

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Embodiment Construction

[0062] An economic path finder mechanism embodiment is described below and uses four new parameters carried in peer-to-peer protocol messages. A peer-to-peer protocol is a protocol used by nodes participating in a P2P overlay network to exchange information between each other. These four new parameters are called sleep mode power usage (SMPU), restricted mode power usage (RMPU), active mode power usage (AMPU) and power management status (PMS). In addition to peer protocol messages, the same parameters are also stored in routing tables maintained by each peer in the overlay network.

[0063] The Sleep Mode Power Usage (SMPU) parameter specifies the power consumption (eg, in milliwatts) of a peer device while it is in its power saving (ie, sleep) mode. Active Mode Power Usage (AMPU) specifies the power consumption (eg, in milliwatts) of a device when operating in active mode, eg, when the mobile terminal has been allocated dedicated uplink and downlink radio channels. The Rest...

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Abstract

A node for use within an overlay network, such as a Distributed Hash Table based overlay network, and which is configured to route packets across the overlay network. The node comprises means for making a routing decision based upon a knowledge of the power consumption levels and / or power availability of a set of peer nodes in the overlay network.

Description

technical field [0001] The invention relates to a routing mechanism of an overlay network based on a distributed hash table. The invention is particularly applicable to an optimization process for determining the routing of resource requests in a peer-to-peer network. Background technique [0002] Peer-to-peer or P2P networks utilize the combined resources of participating nodes, including processing power and communication bandwidth, to facilitate a variety of services including file sharing and Voice over Internet Protocol (VoIP) telephony. In the absence of a central server, certain P2P services can utilize an "overlay network" to optimize the location of resources. An overlay network includes nodes connected by virtual links, which represent paths extending over potentially many physical links in an underlying network (eg, the Internet). Each node in the overlay network maintains a routing table containing a collection of links to some other node in the overlay network...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W40/10H04W40/24H04W84/18
CPCH04L29/08414H04L67/1068H04W40/005H04L67/104H04W52/00H04W40/248H04W52/0277H04L29/08423H04L29/08306Y02B60/50H04L67/1065H04W40/10H04W52/0219Y02D30/70
Inventor J·梅恩帕T·埃克
Owner TELEFON AB LM ERICSSON (PUBL)
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