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Operation of the Collaborative Composite Manufacturing CCM System

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CoMAC: A cooperation-based multiparty audio conferencing system for mobile users.

Sheng-Shih Wang¹, Hsueh-Yi Chen², Shiann-Tsong Sheu²

¹Department of Electronic Engineering, Lunghwa University of Science and Technology, Taoyuan, Taiwan.

Multimedia Tools and Applications

|December 5, 2022

Summary

This summary is machine-generated.

This study introduces a novel cooperation-based architecture for multiparty audio conferencing systems, improving processing latency and system capacity for mobile users. The new system supports more participants with reduced delays compared to traditional centralized or decentralized designs.

Keywords:

Audioconferencing Buffer reordering Codec Cooperation Multiparty conferencing

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Area of Science:

Computer Science
Electrical Engineering
Telecommunications

Background:

Existing multiparty audio conferencing systems face a trade-off between processing latency and system capacity.
Centralized and decentralized architectures have limitations in supporting a large number of mobile participants efficiently.

Purpose of the Study:

To propose a novel cooperation-based architecture for multiparty audio conferencing systems.
To enhance processing latency and system capacity for mobile users.
To address network jitter and out-of-order packet issues.

Main Methods:

Developed a cooperation-based architecture where selected participants act as central controllers.
Implemented acoustic echo cancellation, encoding, decoding, mixing, and de-mixing functionalities within the controller nodes.
Utilized a buffer reordering scheme to mitigate network jitter and packet reordering problems.
Analyzed and compared processing latency across different architectures.

Main Results:

The proposed cooperation-based architecture significantly reduces processing latency.
The system demonstrates an improved capacity to support a larger number of participants.
Performance evaluations on diverse mobile platforms validate the effectiveness of the proposed system.

Conclusions:

The cooperation-based architecture offers a superior alternative to traditional centralized and decentralized systems for mobile multiparty audio conferencing.
This approach effectively balances processing load and enhances user experience by reducing latency and increasing scalability.