Role-Based OFDMA Subcarrier Allocation via RADIUS Priority Tokens
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Solution Overview
Problem
Current wireless network standards, such as IEEE 802.11ax, do not effectively allocate OFDMA subcarriers based on user roles, leading to inefficient bandwidth distribution among users with varying authority, responsibility, privilege, and job competency.
Innovation Solution
Implementing a system that uses a RADIUS server to derive and store priority-token values from user access credentials, allowing the allocation of subcarriers based on user roles, prioritizing higher priority users for better bandwidth allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If subcarrier allocation is performed without role-based prioritization, then network simplicity is maintained, but bandwidth distribution efficiency deteriorates
Solution Approach 1:
The system performs preliminary action by pre-configuring role-based priority levels and allocating subcarriers in advance based on user roles. The access point stores priority information associated with user identifiers and uses this pre-established data to allocate subcarriers efficiently without requiring complex real-time decision-making, thus improving bandwidth distribution efficiency while maintaining manageable system complexity.
2Reliability
If equal subcarrier allocation is used for all users, then allocation simplicity is maintained, but network performance for high-priority users deteriorates
Solution Approach 1:
The system applies local quality by differentiating subcarrier allocation based on user roles and priorities. Instead of uniform allocation, the access point assigns different numbers of subcarriers to different user categories (e.g., high-priority employees receive more subcarriers than low-priority guests). This is implemented through role-based access control lists that map user identifiers to priority levels and corresponding subcarrier allocations, improving network performance for high-priority users while keeping the management process straightforward through pre-defined role templates.
Data Source
AI summary
Access credentials for a user of each of the plurality of stations connecting to the Wi-Fi network are forwarded to a RADIUS server. In response to the forwarded access credentials, priority-token values derived from the access credentials of the connecting users for storage in association with a MAC address of each of the plurality of stations, are received from the RADIUS and stored. Priority-token values responsive to detecting multiple users of at least two different priorities needing to access the Wi-Fi network. Available subcarriers are allocated based on the priority-token values for data transmissions.