Private Preamble Detection for Wireless Node Energy Efficiency
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Solution Overview
Problem
In busy wireless networks, battery-powered computing devices like utility meters face energy inefficiency due to the challenge of distinguishing intended data transmissions from noise, leading to increased power consumption and reduced battery life as they constantly wake up to receive potential messages without knowing if they are intended for them.
Innovation Solution
Implementing a private preamble in data communication that allows receiving nodes to synchronize with transmitting nodes, enabling them to differentiate valid messages from noise and reducing unnecessary energy expenditure by only listening for messages with the known private preamble.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If battery-powered computing devices constantly wake up to receive potential messages in busy wireless networks, then they can detect intended data transmissions, but power consumption increases and battery life decreases
Solution Approach 1:
The patent applies preliminary action by implementing a preamble detection mechanism before full message reception. The receiving node first detects the preamble portion of incoming transmissions, which contains identification information, before committing to receiving the entire message. This preliminary filtering action allows the node to wake up less frequently and for shorter durations, significantly reducing power consumption while maintaining reliable detection of intended transmissions.
Solution Approach 2:
The patent segments the data transmission into two distinct parts: a preamble portion containing identification information and a message portion containing the actual data. This segmentation allows receiving nodes to process only the critical preamble portion when waking from sleep mode, enabling quick determination of whether the transmission is intended for them without processing the entire message, thus reducing energy usage.
2Reliability
If battery-powered computing devices constantly wake up to receive potential messages, then they can ensure no intended messages are missed, but battery life is reduced
Solution Approach 1:
The preamble detection mechanism serves as a preliminary filter that allows nodes to quickly assess incoming transmissions. By checking only the preamble portion containing identification information, nodes can reliably determine whether a transmission is intended for them without committing to full message reception, thereby extending battery life while maintaining message reception reliability.
Solution Approach 2:
The patent implements partial action by having receiving nodes process only the essential preamble portion of transmissions during wake periods, rather than processing complete messages. This partial processing approach provides sufficient information to determine message relevance, extending battery life while ensuring no intended messages are missed through reliable preamble detection.
3Productivity
If receiving nodes process all incoming data transmissions in busy networks, then they can capture all potential messages, but energy resources are wasted on irrelevant transmissions
Solution Approach 1:
By segmenting transmissions into preamble and message portions, the patent enables receiving nodes to process only the preamble portion during energy-constrained wake periods. The preamble contains sufficient identification information to determine relevance, allowing nodes to capture all potential intended messages while avoiding energy waste on irrelevant transmissions by not processing full messages from unintended senders.
Solution Approach 2:
The preamble acts as a preliminary filter that enables quick assessment of transmission relevance. Receiving nodes perform preliminary processing of only the preamble portion to determine whether full message reception is warranted, thereby maintaining productivity in capturing intended messages while minimizing energy loss on irrelevant transmissions.
Data Source
AI summary
Examples of data communication using a private preamble are disclosed. In one example implementation according to aspects of the present disclosure, a data stream is detected. It is then determined whether the received data stream includes a private preamble known to the computing node. If it is determined that the data stream includes a private preamble known to the computing node, a targeted data stream intended for the computing node is received by the computing node.