Wireless Base Station Network Optimization via Linear Daisy Chain Routing
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Solution Overview
Problem
Existing routing protocols for energy-constrained networks are inefficient when nodes need to communicate with a cloud server indirectly through a low-energy transmission chain, as they require frequent updates and energy-intensive broadcasts to determine the transmission route.
Innovation Solution
A wireless base station network optimizes energy efficiency by determining an optimal transmission sequence in the form of a linear daisy chain, where each base station only communicates with its predecessor and successor, and uses Sequential Interruption Logic for failure detection without direct communication with the server.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If each node stores complete routing information of the entire network, then route determination is very fast, but every node must update its routing table and consume energy whenever network topology changes
Solution Approach 1:
The patent segments the network routing information by having each node store only local routing information (routing table containing only directly connected neighbors) rather than complete network topology. This segmentation reduces the amount of data each node must maintain and update, thereby reducing energy consumption while still enabling route determination through multi-hop transmission along the optimal path identified by the server.
2Loss of information
If a single node floods the entire network with route request messages or several nodes broadcast packets to determine the transmission route, then the transmission route can be determined, but energy consumption increases significantly
Solution Approach 1:
The patent introduces a server as an intermediary that centrally determines the optimal transmission route based on network topology information collected from all nodes. Instead of nodes performing energy-intensive flooding or broadcasting to discover routes, the server performs the route calculation and provides routing instructions to nodes, significantly reducing the energy consumption for route discovery while ensuring optimal path selection.
3Loss of information
If base stations transmit and broadcast packets to discover the route, then the transmission route can be determined, but energy consumption increases
Solution Approach 1:
The patent performs preliminary route determination by the server before actual data transmission occurs. The server collects topology information, calculates the optimal transmission path, and configures routing tables in advance. This preliminary action eliminates the need for base stations to perform energy-consuming packet broadcasting or flooding during operation, as the route is already determined and configured beforehand.
Data Source
AI summary
The present invention is directed to optimization and failure detection of a wireless base station network. Based on RF link attenuation measurement, e.g., a Received Signal Strength Indication (RSSI) measurement, a server determines an optimal transmission sequence. Each base station of the optimal transmission sequence, a predecessor and a successor, are designated. Each base station of the sequence generates a packet. Most distant base station (relative to the server) transmits its packet to its successor. Each base station of the sequence (in turn) receives the packet from its predecessor, combines the received packet with its own generated packet, transmits the combined packet to its successor, and so on until the combined packet is relayed to a super base station at the end of the sequence. The super base station transmits the packet to the server. Based on the packet size, server can ascertain which base station (if any) failed.