Supernode Mediator for P2P QoS Content Delivery
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Solution Overview
Problem
Peer-to-peer (P2P) networks face unpredictable data transmission performance due to dynamic node connections, which hinders the provision of quality of service (QoS)-enabled digital content services.
Innovation Solution
A QoS-enabled digital content service system utilizing donor nodes, where a supernode manages user and donor nodes, distributing digital content and selecting donor nodes to replace disconnected user nodes, ensuring seamless content delivery through P2P networking, with credits awarded based on resource stability and performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If P2P networking is used for digital content delivery, then network infrastructure complexity is reduced and user autonomy is improved, but connection stability deteriorates and data transmission performance becomes unpredictable
Solution Approach 1:
The patent introduces a supernode as an intermediary component between user nodes. The supernode maintains a stable connection to the content source and distributes content to multiple user nodes, acting as a mediator that decouples the direct peer-to-peer connections. This allows the system to benefit from P2P simplicity while the supernode provides connection stability and QoS guarantees.
Solution Approach 2:
The system performs preliminary actions by pre-establishing supernodes with stable connections to content sources before user nodes need the content. The supernode maintains ready-to-deliver content buffers and active connections, so when user nodes request content, delivery can begin immediately without waiting for direct peer connections to establish, thus ensuring timely and reliable content delivery.
2Adaptability or versatility
If dynamic node connections are allowed in P2P network, then network adaptability is improved, but data transmission performance becomes unpredictable and QoS cannot be guaranteed
Solution Approach 1:
The supernode serves as a stable intermediary that isolates the dynamic connection characteristics of individual user nodes from the content delivery path. While user nodes can dynamically connect and disconnect, the supernode maintains stable, QoS-guaranteed connections to content sources and to active user nodes, thereby ensuring predictable transmission performance regardless of user node churn.
Solution Approach 2:
The system implements feedback mechanisms where the supernode monitors the quality of service parameters (bandwidth, latency, packet loss) of active user node connections and adjusts content delivery parameters accordingly. This feedback loop allows the system to maintain stable performance by adapting to changing network conditions in real-time while preserving the dynamic nature of P2P connections.
3Quantity of substance
If content is distributed to multiple user nodes, then content availability is improved, but network stability deteriorates when nodes disconnect
Solution Approach 1:
The supernode performs preliminary content caching and buffering before user nodes disconnect or before peak demand periods. By pre-loading content into the supernode's buffer and maintaining active connections to multiple user nodes simultaneously, the system ensures continuous content availability even when individual user nodes disconnect, thus decoupling content availability from network stability.
Solution Approach 2:
The supernode acts as a content buffer and distribution intermediary that maintains stable content availability independent of user node stability. Multiple user nodes can connect to the same supernode, and the supernode manages the content distribution, ensuring that temporary disconnections of individual users do not affect overall content availability for the network.
Data Source
AI summary
A system and method of providing quality of service (QoS)-enabled digital content in peer-to-peer (P2P) networks are provided. The QoS-enabled service system on the P2P network includes: a service provider capable of providing digital content; one or more user nodes receiving digital content from the service provider; one or more donor nodes lending resources for providing digital content; and a supernode receiving information on user nodes and donor nodes, and a copy of digital content from the service provider, allowing the exchange of digital content among the user nodes through P2P networking, and when at least one user node experiences a P2P networking error during the exchange of the digital content, arranging for a predetermined number of donor nodes from among the one or more donor nodes to join the P2P networking. According to the system and method, even when the function of a peer does not normally work on a P2P network, a donor as a replacement of the peer is utilized, thereby providing QoS-enabled digital content to a user requesting the digital content.