Low Latency and High Data Rate (LLHD) Scheduler: A Multipath TCP Scheduler for Dynamic and Heterogeneous Networks.

Area of Science:

• Computer networking
• Network performance optimization
• Protocol design

Background:

• The scheduler is vital for Multipath Transmission Control Protocol (MPTCP), directing data packets to prevent head-of-line blocking and ensure order.
• Modern internet networks exhibit dynamic, real-time characteristics like fluctuating latency, path loss, and capacity.
• Current MPTCP schedulers often fail to integrate these diverse network properties for optimal decision-making, leading to performance limitations.

Purpose of the Study:

• To develop an MPTCP scheduler that effectively utilizes real-time network conditions.
• To enhance data transmission efficiency by simultaneously considering latency, path loss, and capacity.
• To improve overall MPTCP performance compared to existing default schedulers.

Main Methods:

• Introduction of the Low Latency and High Data Rate (LLHD) scheduler.
• Integration of real-time data on latency, path loss, and capacity into scheduling decisions.
• Comparative performance analysis against the default Linux MPTCP scheduler.

Main Results:

• The LLHD scheduler demonstrated approximately 25% higher throughput.
• The LLHD scheduler achieved approximately 45% lower data transmission delay.
• Scheduling decisions were successfully based on integrated real-time network metrics.

Conclusions:

• The LLHD scheduler offers significant performance improvements for MPTCP.
• Considering multiple real-time network parameters concurrently enhances MPTCP efficiency.
• LLHD provides a superior alternative to default MPTCP schedulers for demanding network environments.