Transparent Proxy Accelerating TCP Streams via UDP+
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The Transmission Control Protocol (TCP) exhibits poor bandwidth utilization in networks with high latency and packet loss, making real-time applications unusable, especially across long distances like between the US and India, where delays exceed 250 milliseconds.
Innovation Solution
A communication apparatus employing a local transparent communication proxy module that intercepts streams and determines whether to accelerate them using an accelerated protocol, such as UDP+, which maximizes bandwidth utilization and conceals network shortcomings from applications, allowing real-time applications to function effectively even in high-latency conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If TCP protocol is used for remote communication, then reliability is maintained, but bandwidth utilization deteriorates in high-latency networks
Solution Approach 1:
A transparent proxy module is introduced as an intermediary between the application and the network. The proxy intercepts TCP streams, converts them to UDP packets, and manages retransmission independently. This mediator allows the application to use simple UDP while the proxy ensures reliable delivery, resolving the contradiction between reliability and bandwidth utilization in high-latency networks.
Solution Approach 2:
The system changes the transmission protocol parameter from TCP to UDP for accelerated streams, and dynamically adjusts packet retransmission parameters based on network conditions. By monitoring packet loss and latency, the system adapts retransmission timing and frequency, optimizing bandwidth utilization while maintaining reliability in high-latency environments.
2Stability of the object's composition
If TCP protocol is used, then in-order delivery is guaranteed, but real-time application performance deteriorates in high-latency networks
Solution Approach 1:
The system segments the communication function into two parts: the application layer uses UDP for fast, unordered transmission, while the proxy layer handles retransmission and ordering. This segmentation allows real-time applications to achieve better performance by not waiting for out-of-order packets, while the proxy ensures proper ordering through buffered retransmission of missing packets.
3Productivity
If transparent proxy architecture is implemented, then bandwidth utilization improves, but device complexity increases
Solution Approach 1:
The transparent proxy module is designed to operate autonomously, automatically monitoring network conditions, detecting packet loss, and adjusting retransmission parameters without external intervention. The system self-manages the conversion between TCP and UDP protocols, making the complexity transparent to the application while delivering improved bandwidth utilization.
4Reliability
If packet retransmission is implemented in high-latency networks, then reliability improves, but time delay increases
Solution Approach 1:
The system sends duplicate packets in advance for critical real-time data, and pre-positions retransmission buffers at the proxy. When packet loss is detected, retransmission occurs from pre-buffered copies rather than waiting for round-trip delays, significantly reducing the time penalty while maintaining reliability in high-latency networks.
Data Source
AI summary
A communication apparatus for remote communication may include a local transparent proxy module configured to intercept a first stream destined to a remote destination and configured to make a first determination whether to accelerate communication associated with the first stream. The communication apparatus may include a local proxy module configured to receive the first stream based on the first determination and configured to make a second determination whether a connection to a remote proxy module is established. If the connection is established, then the local proxy module may receive one or more additional streams and may direct the one or more additional streams to the remote proxy module utilizing an accelerated mode. If the connection is not established, then the local transparent proxy module may direct the first stream to the remote destination utilizing a non-accelerated mode. A machine-readable medium and a method are also disclosed.