Centralized Server Peer-to-Peer Content Distribution
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Solution Overview
Problem
Current television service providers face limitations in content storage and bandwidth, restricting on-demand pay-per-view programming and requiring subscribers to wait for rebroadcasts of missed programs, with recorded content only accessible locally on personal video recorders.
Innovation Solution
A centralized server operates within a peer-to-peer network, where subscribers share locally stored content, allowing the server to manage access rights and distribute content based on subscriber-defined controls, avoiding storage and bandwidth limitations by listing available content without storing it, and directing requests to connected peers with the desired content.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the service provider stores content on centralized servers to enable on-demand pay-per-view programming, then subscribers can access content on-demand, but the storage space and bandwidth requirements are limited
Solution Approach 1:
The system segments the content distribution function by separating the centralized server's role (managing access rights and coordinating distribution) from the peer-to-peer network's role (storing and transmitting content). This allows the service provider to avoid storing content centrally while still providing on-demand access through distributed subscriber devices.
Solution Approach 2:
The centralized server acts as an intermediary that manages access rights and coordinates content distribution without storing the content itself. It facilitates peer-to-peer sharing by authenticating subscribers, determining access rights, and routing requests to appropriate peers, thereby enabling on-demand access without central storage requirements.
2Adaptability or versatility
If the service provider increases the variety of content available for on-demand viewing, then subscriber satisfaction improves, but the bandwidth required to satisfy all requests increases
Solution Approach 1:
The system merges multiple functions into the peer-to-peer network: content storage, content transmission, and bandwidth sharing among subscribers. By combining these functions at the subscriber level rather than requiring centralized provision, the system can offer diverse content without proportionally increasing provider bandwidth consumption, as subscribers share bandwidth resources peer-to-peer.
Solution Approach 2:
Subscribers serve themselves by storing and sharing content with other subscribers in the peer-to-peer network. This self-service model allows the content variety to expand without requiring the service provider to provide proportional bandwidth resources, as the network itself handles content distribution using distributed subscriber resources.
3Device complexity
If the service provider maintains centralized storage of all content, then content access control is simplified, but the system becomes vulnerable to single points of failure and storage limitations
Solution Approach 1:
The centralized server functions purely as an access control intermediary, managing authentication and authorization without storing content. This separation of access control from content storage eliminates single points of failure related to centralized content storage while maintaining simplified access control through the server's coordination role in the peer-to-peer network.
Data Source
AI summary
A method and system for providing controlled on-demand distribution of content via a centralized server and a peer-to-peer network have been described. The method may include receiving, at a server, a request from a client for content where the requesting client and the server are part of a peer-to-peer network. The server may then determine whether the requesting client has access rights to the content. If the requesting client has access rights to the content, then the server may determine one or more other clients on the peer-to-peer network that have the content available for download. The server may then select one or more clients from the one or more other clients and allow the requesting client to download the content from the selected one or more clients. Other embodiments have also been described and claimed.