Adaptive Signal Threshold Control for Wireless Media Efficiency
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Solution Overview
Problem
In wireless networks, the existing CSMA/CA scheme determines medium states based on fixed thresholds, leading to inefficient utilization when multiple networks are adjacent, causing potential collisions and reduced media efficiency.
Innovation Solution
An information processing apparatus that judges signal transmission feasibility using a relative signal strength threshold, specifically considering signal strength from adjacent networks, allowing for conditional signal transmission even if the medium is deemed busy by traditional standards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixed threshold is used to determine medium state in CSMA/CA scheme, then collision avoidance is achieved, but media utilization efficiency deteriorates in adjacent networks
Solution Approach 1:
The patent applies dynamics by making the threshold adaptive rather than fixed. The determining unit dynamically adjusts the threshold for determining medium state based on received signal strength from other networks. When signal strength from other networks is weak, the threshold is lowered to allow transmission; when signal strength is strong, the threshold is raised to prevent collisions. This dynamic adjustment resolves the contradiction between collision avoidance and media utilization efficiency.
Solution Approach 2:
The patent changes the parameter of threshold value based on signal strength conditions. By modifying the threshold parameter according to the received signal strength from other networks, the system adapts to different network environments. This parameter change enables the system to maintain reliability while improving productivity in adjacent network scenarios.
2Productivity
If signal transmission is allowed in adjacent networks, then media utilization efficiency improves, but collision risk increases
Solution Approach 1:
The patent changes the threshold parameter based on signal strength to control transmission decisions. When the received signal strength from other networks is below a certain level, the system lowers the threshold to allow transmission, improving media utilization. When signal strength is high, the threshold is raised to prevent collisions, maintaining reliability.
Solution Approach 2:
The system uses feedback from signal strength measurements to adjust transmission decisions. The determining unit continuously monitors received signal strength from other networks and uses this feedback to dynamically adjust the threshold for medium state determination, enabling adaptive control that balances utilization efficiency and collision risk.
3Device complexity
If a common medium threshold is used across all networks, then simplicity is maintained, but adaptability to different network conditions deteriorates
Solution Approach 1:
The patent transforms the static threshold management into a dynamic system. Instead of using a fixed common threshold, the system dynamically adjusts the threshold based on real-time signal strength measurements from other networks. This dynamic approach maintains operational simplicity while significantly improving adaptability to different network conditions.
Solution Approach 2:
The patent creates a universal threshold determination mechanism that adapts to multiple network scenarios. The same determining unit handles both intra-network and inter-network scenarios by adjusting the threshold based on signal strength, providing universal adaptability across different network conditions without requiring separate threshold management for each scenario.
Data Source
AI summary
To improve utilization efficiency of media by an information processing apparatus in a situation where a plurality of networks is adjacent to each other.An information processing apparatus includes: a measuring unit; a judging unit; and a control unit. In the information processing apparatus, the measuring unit measures signal strength of a received signal. The judging unit judges whether or not later signal transmission is possible using a relative value with respect to the signal strength measured by the measuring unit as a threshold on the basis of the threshold. The control unit controls signal transmission in accordance with the judgment by the judging unit about whether or not signal transmission is possible.