V-MIMO Cluster Selection for Wireless Efficiency
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Solution Overview
Problem
Current wireless communication systems using V-MIMO schemes face challenges in optimizing transmission efficiency due to inefficient cluster configuration and local data sharing, leading to suboptimal performance in multiple clusters.
Innovation Solution
A method for determining a Virtual Multiple Input and Multiple Output (V-MIMO) cluster in a hierarchical cooperative structure by selecting entry candidate nodes based on transmission efficiency, using equations to calculate and compare channel use amounts and transfer rates, and aggregating clusters to maximize efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If more nodes are included in a V-MIMO cluster to increase transmission diversity, then transmission reliability is improved, but channel use amount increases leading to reduced transmission efficiency
Solution Approach 1:
The patent applies dynamics by making the V-MIMO cluster configuration adaptive rather than fixed. Nodes dynamically join or leave the cluster based on real-time channel conditions and transmission efficiency calculations. The representative node continuously monitors transmission efficiency and adjusts cluster membership accordingly, allowing the system to optimize between reliability and efficiency based on current network conditions.
Solution Approach 2:
The patent changes the parameter of cluster size dynamically. Instead of maintaining a fixed number of nodes in the V-MIMO cluster, the system adjusts the cluster size based on transmission efficiency calculations. The representative node calculates transmission efficiency for different cluster configurations and selects the optimal size that balances reliability improvement with efficiency preservation.
2Reliability
If local data sharing is performed among cluster nodes, then transmission reliability is improved, but channel use amount increases leading to efficiency degradation
Solution Approach 1:
The patent implements feedback mechanisms where the representative node continuously monitors transmission efficiency and uses this information to adjust cluster configuration. Nodes receive feedback about channel conditions and transmission performance, allowing them to optimize their data sharing behavior. This feedback loop enables the system to maintain reliability while minimizing unnecessary channel usage.
Solution Approach 2:
The patent applies partial action by having nodes selectively participate in data sharing based on channel conditions. Not all nodes need to share data with all other nodes; the system identifies optimal sharing pairs and configurations. This partial participation approach maintains sufficient reliability while reducing overall channel use amount compared to full mesh sharing.
3Measurement precision
If transmission efficiency is calculated using complex equations involving channel gains and interference, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent applies preliminary action by pre-establishing the mathematical model and calculation framework for transmission efficiency. The representative node has pre-programmed the necessary equations and parameters, so when efficiency calculation is needed, the system only needs to substitute current channel measurements into the pre-defined formula rather than deriving and computing complex relationships in real-time.
Solution Approach 2:
The representative node acts as an intermediary that handles the complex calculations on behalf of other nodes. Instead of each node performing complex transmission efficiency calculations independently, the representative node collects channel information from all nodes, performs the comprehensive calculations, and distributes the results. This intermediary approach reduces the computational burden on individual nodes while maintaining precise efficiency measurement.
Data Source
AI summary
A method is provided for determining, by a base station, a Virtual-Multiple-Input Multiple-Output (V-MIMO) cluster in a wireless communication system. The base station determines a transmission efficiency of a temporary cluster and selects one or more entry candidate nodes contained in the temporary cluster. The base station determines an entry transmission efficiency. The entry transmission efficiency is a transmission efficiency when the entry candidate node enters a V-MIMO unit cluster. The base station determines whether to make the entry candidate node enter the V-MIMO unit cluster by comparing the entry transmission efficiency with the transmission efficiency of the temporary cluster.