Admission Control Resource for Adaptive Bitrate Streaming
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Solution Overview
Problem
Conventional adaptive bit rate technologies face challenges in managing network bandwidth efficiently, leading to congestion when multiple users attempt to retrieve high-bit-rate content simultaneously, resulting in reduced playback quality for all users.
Innovation Solution
An admission control resource that tracks client identities and monitors status information to control access to shared network resources, selectively limiting new clients based on feedback from existing clients, ensuring available bandwidth is not overwhelmed, thereby maintaining playback quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If multiple users simultaneously retrieve high-bit-rate content without admission control, then content retrieval speed is improved, but network congestion occurs and playback quality deteriorates
Solution Approach 1:
The admission control resource performs preliminary monitoring of status information from existing clients before granting access to new clients. This preliminary action prevents network congestion by assessing current bandwidth availability and client performance metrics in advance, ensuring that new clients are only admitted when network conditions support high-bit-rate content retrieval without degrading playback quality for existing users.
2Reliability
If admission control is implemented to regulate client access, then network congestion is prevented and playback quality is maintained, but system complexity increases
Solution Approach 1:
The admission control resource utilizes feedback from status information provided by existing clients to make admission decisions. Clients continuously report their playback status and network performance metrics, and the admission control resource monitors this feedback to determine whether to grant access to new clients. This feedback mechanism maintains playback quality through a relatively simple system that reacts to actual network conditions rather than implementing complex predictive models.
Data Source
AI summary
An admission control resource tracks identities of multiple clients in a network environment that share use of a network resource to retrieve content at the same or different adaptive bit rates. The admission control resource further monitors status information indicating an ability of each of the multiple clients to retrieve content at the same or different adaptive bit rates over the shared network resource. Based at least in part on the status information, the admission control resource controls use of the shared network resource by new clients. In other words, as its name suggests, the admission control resource as discussed herein selectively limits how many subscribers are able to use a shared network resource depending on feedback from one or more clients that currently use the shared network resource to retrieve the content at the same or different adaptive bit rates.