Representative Node Wireless Broadcast Sniffing
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Solution Overview
Problem
Existing wireless ad hoc networks face inefficiencies in broadcasting data due to uni-directional data flow, leading to uncertainty about data receipt by all nodes, and current solutions like repeated broadcasts and ACK mechanisms suffer from network and energy inefficiencies.
Innovation Solution
A method where a representative node establishes wireless communication links with both the source device and non-representative nodes, configures these links based on the nodes' ability to receive data, and sends control information to enable reliable data reception from the source device, allowing non-representative nodes to 'sniff' the communication link and confirm data receipt.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If repeated broadcasts are used to ensure all nodes receive data, then reliability of data delivery is improved, but network efficiency and energy consumption deteriorate
Solution Approach 1:
The patent introduces an intermediary mechanism where the source device sends data to a representative node, which then relays it to non-representative nodes. This intermediary structure eliminates the need for repeated broadcasts while ensuring all nodes receive data, resolving the contradiction between reliability and network efficiency.
Solution Approach 2:
The patent segments the network into representative nodes and non-representative nodes. This segmentation allows data to be transmitted efficiently through representative nodes while non-representative nodes receive data through controlled mechanisms, avoiding the inefficiency of repeated broadcasts to all nodes.
2Reliability
If ACK mechanisms are implemented to confirm data receipt, then reliability of data delivery is improved, but device complexity and energy consumption increase
Solution Approach 1:
The representative node acts as an intermediary that manages data distribution and confirmation. Instead of complex ACK mechanisms between all nodes, the representative node coordinates data receipt confirmation, simplifying the protocol while maintaining reliability.
3Reliability
If relay retransmissions are used to deliver data, then data reachability is improved, but network overhead and energy consumption increase
Solution Approach 1:
By segmenting nodes into representative and non-representative categories, the patent enables efficient data relay through representative nodes only. Non-representative nodes receive data without needing to perform retransmissions, reducing overall network overhead and energy consumption while maintaining data reachability.
Data Source
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AI summary
The disclosure relates to performing a reliable broadcast from a source device to a plurality of nodes. In an aspect, a representative node establishes a first wireless communication link with each of one or more non-representative nodes, receives, from each of the one or more non-representative nodes, information indicating an ability of the one or more non-representative nodes to sniff wireless communications, establishes a second wireless communication link with the source device, configures the second wireless link based on the information received from the one or more non-representative nodes, sends control information for the second wireless communication link to each of the one or more non-representative nodes, and receives communications from the source device over the second wireless communication link, wherein the one or more non-representative nodes sniff the communications on the second wireless communication link based on the control information for that link.