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Peer-to-peer communication in wireless sensor network through delay response between packets

A wireless sensor and network technology, applied in the wireless sensor network field of virtual communication, can solve the problems of energy loss, insufficient error control technology, VCDR packet loss, etc., and achieve the effect of saving power

Inactive Publication Date: 2011-02-09
NANYANG TECH UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The first disadvantage of VCDR is the time synchronization between the sender and receiver nodes
Variations in delay between start and stop packets due to sending and propagation variables can easily corrupt data and make VCDR impractical
[0012] Another disadvantage of VCDR is the lack of error control technology
Since VCDR is a relatively new and unknown communication count, existing error control techniques are insufficient
[0013] Another disadvantage of VCDR is packet loss
For example, stopping the loss of packets can cause the receiver node to count excessively or indefinitely and thus consume excessive energy

Method used

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  • Peer-to-peer communication in wireless sensor network through delay response between packets
  • Peer-to-peer communication in wireless sensor network through delay response between packets
  • Peer-to-peer communication in wireless sensor network through delay response between packets

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Embodiment Construction

[0038] The present invention is shown as a peer-to-peer data communication technique for nodes in a wireless sensor network based on Virtual Communication via Delayed Response (VCDR). Two key advantages of VCDR are energy saving and data security.

[0039] VCDR reduces energy consumption and improves data security by counting time at nodes instead of sending actual data. For a particular value n to be sent, the sender node initiates the data sending process by sending a start packet to the receiver node. Once the start packet is received, the receiver node activates the counter and starts counting the elapsed time. The counter fires every fixed period of time and each fired event represents a count. Therefore, the receiver node continuously counts from 1 to a finite number according to the elapsed time. The sender node operates its own counter in a similar way. Once the sender node has counted to the value n, the sender node sends a stop packet to the receiver node. Likew...

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PUM

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Abstract

A method for transmitting data between first and second nodes in a network comprises (a) the first node sending a start packet to the second node, (b) the first node starting a first counter concurrently with sending the start packet, wherein the first counter starts counting, (c) the second node starting a timer in response to the start packet, (d) the second node starting a second counter in response to the timer running for a predetermined delay time, wherein the second counter starts counting, (e) the first node stopping the first counter and sending a stop packet in response to the first node determining that the number of accumulated first counts corresponds to the data (thereby transmitting the data solely as a time interval between the start and stop packets), the second node stopping the second counter in response to the stop packet (and receiving the transmitted data).

Description

technical field [0001] The present invention relates to wireless sensor networks, and more particularly to wireless sensor networks for energy-efficient peer-to-peer virtual communication via delayed responses between packets. Background technique [0002] Wireless sensor network is an emerging technology that is popular due to its wide range of applications. A typical wireless sensor network includes sensor nodes deployed in an ad hoc manner for the purpose of physical sensing and monitoring of the environment. Through wireless communication capabilities, these sensor nodes cooperatively disseminate sensed data from a target location to a destination, typically a data collection and processing point. Using this technique, users at data collection and processing points are able to monitor and probe wide geographic areas without being physically present at the target location. [0003] figure 1 A wireless sensor network 10 is shown. Wireless sensors 12 are deployed in a p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03K7/04G08C17/02H03M1/50
CPCH04L1/18H04L1/0041H04L25/4902H04W28/04G08C17/02H04L25/38
Inventor 刘浚壕宋文喜张莉莉
Owner NANYANG TECH UNIV
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