Dynamic Preamble Length Optimization for Data Communication
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing data communication systems face inefficiencies in throughput due to the inability to optimize preamble length for bit synchronization, leading to unnecessary preamble transmission and reduced transmission efficiency.
Innovation Solution
A data communication system that includes synchronization detection, synchronization position information generation, and a preamble length calculation mechanism to determine the optimal preamble length based on detected bit synchronization, allowing for efficient frame transmission and reception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a sufficiently long preamble is transmitted to ensure bit synchronization detection, then synchronization reliability is improved, but transmission efficiency deteriorates due to unnecessary preamble length
Solution Approach 1:
The preamble length is made dynamic rather than fixed. The transmitting apparatus adjusts the preamble length based on feedback from the receiving apparatus about synchronization detection results. This allows the system to adapt the preamble length to actual channel conditions, using longer preambles only when necessary for reliable synchronization while using shorter preambles when conditions permit, thus resolving the contradiction between synchronization reliability and transmission efficiency.
Solution Approach 2:
A feedback mechanism is introduced where the receiving apparatus communicates synchronization detection results back to the transmitting apparatus. This feedback enables the transmitting apparatus to optimize preamble length based on actual reception conditions, ensuring sufficient synchronization reliability while minimizing unnecessary preamble transmission and improving overall transmission efficiency.
2Reliability
If a fixed long preamble length is used, then synchronization detection is reliable, but throughput improvement is interrupted
Solution Approach 1:
The system transitions from a static fixed preamble length to a dynamic adaptive preamble length. Based on synchronization detection feedback, the transmitting apparatus adjusts preamble length in real-time, ensuring reliable synchronization detection while maximizing throughput by avoiding unnecessarily long preambles when channel conditions allow for shorter preambles.
Solution Approach 2:
The preamble length parameter is changed dynamically based on transmission conditions and feedback. Instead of using a fixed parameter value, the system adjusts this parameter adaptively, changing it between transmissions to optimize the balance between synchronization reliability and throughput performance.
3Productivity
If preamble length is adjusted based on beam pattern or transmission history, then some optimization is achieved, but optimal preamble length cannot be selected because transmission environment always varies
Solution Approach 1:
The system uses real-time feedback from the receiving apparatus about synchronization detection results to adapt preamble length to varying transmission environments. This feedback loop enables the transmitting apparatus to respond to current channel conditions rather than relying on historical data or beam pattern assumptions, ensuring optimal preamble length selection despite environmental variations.
Solution Approach 2:
The receiving apparatus actively participates in the optimization process by providing feedback about its synchronization detection results. This self-service mechanism allows the system to automatically adapt to varying transmission environments without external intervention, with each apparatus contributing to optimizing the overall transmission performance.
Data Source
AI summary
A frame is effectively transmitted and received by setting an optimal preamble length according to transmission environments between communication apparatuses. A data communication system includes a synchronization detection part to detect bit synchronization based on the preamble of the frame received to the second communication apparatus from the first communication apparatus, a synchronization position information generating part to generate synchronization position information of a position of the bit synchronization, which is in the frame received in the second communication apparatus, detected by the synchronization detection part, a preamble length calculating part to calculate an optimal value of a length of the preamble based on the synchronization position information, and a transmit command issuing part to issue a transmit command of transmission of the frame including the preamble having the length based on the optimal value from the first communication apparatus to the second communication apparatus.