Multi-Antenna Layered Data Rate Allocation for SVC Overhead
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Solution Overview
Problem
Existing multi-antenna systems face challenges in optimizing data rate allocation across layers, particularly when using Scalable Video Coding (SVC), as they require different data rates based on Signal-to-Noise Ratio (SNR) conditions and the presence or absence of SVC, affecting video quality and channel capacity.
Innovation Solution
A method for differentially allocating data rates to each layer in a multi-antenna system by selecting a coding rate, modulation scheme, or their combination based on the use of SVC, using a noise threshold for the base layer as a reference to determine optimal data rates for enhanced layers, ensuring maximum data rate and performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If SVC scheme is used to improve channel capacity efficiency, then video transmission efficiency is improved, but overhead increases by 10 to 30% requiring higher bit rate
Solution Approach 1:
The patent applies different data rate allocation strategies to different layers (base layer and enhanced layers) based on whether SVC is used. When SVC is used, the base layer is allocated a lower data rate while enhancement layers receive higher rates, optimizing the overall channel capacity efficiency while managing the increased overhead requirement
2Productivity
If multiple antennas are used to increase channel capacity, then information throughput is improved, but system complexity increases
Solution Approach 1:
The patent segments the transmission into multiple layers (base layer and enhanced layers) that can be independently allocated different data rates. This segmentation allows the multi-antenna system to manage complexity by treating different layers separately while still achieving high information throughput through spatial multiplexing
3Manufacturing precision
If different data rates are allocated to each layer, then video quality is optimized, but data rate allocation complexity increases
Solution Approach 1:
The patent implements dynamic data rate allocation where the base layer and enhancement layers are assigned different data rates based on channel conditions and SVC usage. This dynamic allocation optimizes video quality by ensuring the base layer receives sufficient rate for basic quality while enhancement layers receive additional rate for improved quality, with the allocation strategy adapting to whether SVC is being used
Data Source
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AI summary
An apparatus and method for allocating a data rate in a multi-antenna system are provided, wherein a noise threshold corresponding to a modulation scheme, a coding rate, or a combination of both applied to a base layer from among a plurality of layers is set as a reference noise threshold, and a data rate is allocated to an enhanced layer among the plurality of layers, based on the reference noise threshold and a use or non-use of hierarchical transmission.