Wireless Transmitter Subblock Encoding for Broadband WLANs
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Solution Overview
Problem
Existing wireless communication systems face challenges in supporting broadband transmission in WLANs without increasing the complexity and burden of existing structures, particularly when increasing the size of the frequency band.
Innovation Solution
A method and transmitter that determine the number of bits assigned to a single axis of a signal constellation and use multiple encoders to generate coded blocks, which are then parsed into frequency subblocks for transmission, allowing for efficient broadband support without requiring significant changes to the existing structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the size of the interleaver is increased to support a larger frequency band, then frequency diversity gain is improved, but device complexity and structural burden increase
Solution Approach 1:
The coded block is divided into multiple frequency subblocks, each of which is independently interleaved. This segmentation allows the system to achieve frequency diversity gain across the entire bandwidth without requiring a single large interleaver, thereby reducing device complexity while maintaining reliability.
2Reliability
If multiple encoders are used to increase coding gain, then data reliability is improved, but device complexity increases
Solution Approach 1:
The use of multiple encoders (NES) is integrated with the segmentation approach where each encoder processes a portion of the coded block that is subsequently divided into frequency subblocks. This allows the system to leverage coding gain from multiple encoders while the segmentation into subblocks prevents the complexity from scaling linearly with the total bandwidth.
Data Source
AI summary
Provided are a transmitter and a method for transmitting a data block in a wireless communication system. The method comprises the following steps: deciding the number of bits (s) and encoders (NES) to allocate to one axis of a signal constellation; encoding an information bit based on the s and the NES and generating a coded block; parsing the coded block based on the s and the NES and generating a plurality of frequency sub-blocks; and transmitting the plurality of frequency sub-blocks to a receiver.