Configurable Access Network Routing Controller
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Solution Overview
Problem
In static, multi-hop wireless networks, existing routing techniques are complex and energy-intensive, leading to reduced battery life and potential packet loss if intermediate stations run out of energy, as they require each station to perform complex tasks and maintain extensive software or firmware programs for routing.
Innovation Solution
Implementing a fractional routing solution within a Configurable Access Network (CAN) architecture, where a controller determines topology and routing paths, simplifying station operations and reducing energy consumption by identifying primary paths and controlling traffic through these paths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If complex routing techniques are used in static multi-hop wireless networks, then routing functionality is achieved, but energy consumption increases and station lifetime decreases
Solution Approach 1:
The patent extracts the complex routing decision-making functionality from individual wireless stations and concentrates it in a centralized controller. Each station only performs simple forwarding based on pre-computed paths, while the controller handles the complex topological modeling and routing optimization, thereby reducing energy consumption at each station while maintaining reliable routing functionality.
Solution Approach 2:
The controller pre-computes optimal routing paths and forwards tables before actual data transmission occurs. This preliminary action allows stations to simply execute pre-determined routes without performing complex real-time routing decisions, reducing operational energy consumption while ensuring reliable packet delivery through optimized paths.
2Reliability
If complex routing techniques are implemented at each station, then routing capability is provided, but computational time and energy requirements increase
Solution Approach 1:
The patent removes complex routing computations from individual stations and places them in a centralized controller. Stations only perform simple packet forwarding based on pre-computed paths, dramatically reducing computational time and energy requirements at each station while maintaining full routing capability through the controller's pre-computed forwarding tables.
Solution Approach 2:
The controller performs all complex routing computations and path optimizations in advance before actual data transmission. This preliminary computation of optimal paths and creation of forwarding tables eliminates the need for stations to perform time-consuming routing decisions during packet transmission, reducing computational time while preserving routing capability.
3Area of stationary object
If more intermediate stations are used in packet routing, then network coverage is extended, but probability of energy depletion increases
Solution Approach 1:
The patent optimizes routing parameters by selecting paths that minimize the number of intermediate stations and their energy consumption. The controller computes optimal paths based on topological models and forwarding tables that prioritize routes with lower energy requirements, thereby extending network coverage while reducing the probability of energy depletion at intermediate stations.
Solution Approach 2:
The controller pre-computes optimal routing paths and forwards tables that minimize energy consumption before packet transmission. This preliminary optimization ensures packets take the most energy-efficient paths through the network, reducing the likelihood of intermediate stations depleting their energy while maintaining extensive network coverage.
Data Source
AI summary
A configurable access network (CAN) architecture is used to identify primary routing paths that allows each wireless station within a static, multi-hop wireless CAN to route packetized data in a way that simplifies the operation of each station and makes more efficient use of the limited energy available to each station.