Intermediate Node Protocol Conversion for Hybrid Communication
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Solution Overview
Problem
Current communication systems face challenges in balancing reliability and latency, as lossless protocols ensure data delivery but increase latency due to overhead, while lossy protocols lack reliability and may result in packet loss, especially over unreliable wireless connections.
Innovation Solution
Implementing a hybrid communication system where intermediate nodes convert between lossy and lossless protocols, using lossless protocols for short-range, unreliable wireless connections and lossy protocols for long-range, reliable connections, thereby minimizing latency and ensuring reliability by local retransmissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If lossless protocols (e.g., TCP) are used to guarantee data delivery, then reliability is improved, but latency increases due to overhead such as acknowledgements and retransmission identifiers
Solution Approach 1:
The communication path is segmented into two parts: a lossy protocol segment for long-range transmission and a lossless protocol segment for short-range transmission. This segmentation allows each segment to use the most appropriate protocol for its specific requirements, reducing overall latency while maintaining reliability.
Solution Approach 2:
An intermediate node is introduced that converts between lossy and lossless protocols. This intermediary receives packets from the lossy protocol, manages retransmissions locally, and forwards reliable data through the lossless protocol to the destination, thereby isolating the overhead to only the necessary segment.
2Loss of time
If lossy protocols (e.g., UDP) are used to reduce overhead, then latency is reduced, but reliability deteriorates as packets dropped on links are not re-transmitted
Solution Approach 1:
Different protocol qualities are applied to different parts of the communication system. The lossy protocol is used where low latency is critical (long-range transmission), while the lossless protocol is applied locally at the intermediate node and destination where reliability is needed. This local application of quality ensures reliability without incurring global latency penalties.
Solution Approach 2:
The intermediate node performs preliminary retransmission actions before data reaches the final destination. By handling retransmissions at the intermediate node using lossless protocols, the system ensures data reliability before forwarding through the lossy protocol, preventing the need for end-to-end retransmissions that would increase latency.
3Reliability
If lossless protocols are used for all transmissions, then reliability is ensured, but device complexity increases due to additional protocol overhead and processing requirements
Solution Approach 1:
The protocol processing complexity is segmented and concentrated at the intermediate node rather than being distributed across all devices. Only the intermediate node requires full lossless protocol processing, while end devices can use simpler lossy protocol handling, thereby reducing overall device complexity in the system.
Data Source
AI summary
Disclosed herein are related to communication systems and methods for converting between lossy communication protocol packets and lossless communication protocol packets. In one aspect, the communication system includes a server, a set top box, and an intermediate node. In some embodiments, the intermediate node is configured to receive a lossy communication protocol packet from the server, convert the lossy communication protocol packet to a lossless communication protocol packet, and transmit the converted lossless communication protocol packet to the set top box.