Real-Time Communications Lab

High-performance WebRTC media server in Rust with QUIC + BBRv3 integration. Enhanced performance and reduced latency

Active Started: Q1 2025

Project Overview

Real-Time Communications Lab develops a high-performance WebRTC media server in Rust with integration of modern network protocols QUIC and BBRv3. The project aims to create a media server with 25% better performance and 10ms latency reduction.

The CloudBridge RTC solves critical problems of modern voice servers: SRTP replay errors, high jitter, packet loss, and inefficient resource usage. Using Rust ensures memory safety and high performance, while Sans-IO architecture enables massive scalability.

Key Objectives

Latency <40ms

Achieve ultra-low voice communication latency of less than 40 milliseconds

1000+ participants

Support for more than 1000 participants in a single voice channel

Memory Safety

Eliminate buffer overflow and race conditions through Rust

Current Status

Completed

  • Basic WebRTC architecture with RTP/RTCP/SRTP support
  • Sans-IO architecture for high performance
  • ICE/STUN/TURN support for NAT traversal
  • DTLS 1.2/1.3 for secure connections
  • SCTP data channels for additional data

Achieved Results

  • CPU usage: -50% compared to traditional solutions
  • Memory usage: -60% thanks to Rust zero-cost abstractions
  • Connection success rate: 98%+ in various network conditions

Performance Comparison

* CPU -50%, Memory -60%, Latency -25% (relative to baseline)

In Progress

  • QUIC + BBRv3 integration for transport layer
  • SRTP replay error elimination
  • Horizontal scaling to 1000+ participants

Technical Details

WebRTC Stack

  • • RTP/RTCP (Real-time Transport)
  • • SRTP (Secure RTP)
  • • ICE (Interactive Connectivity)
  • • STUN/TURN (NAT Traversal)
  • • DTLS 1.2/1.3 (Security)
  • • SCTP (Data Channels)

Transport Layer

Technologies

Rust WebRTC QUIC BBRv3 SRTP Sans-IO Tokio Async

Metrics

  • • Latency (p50, p95, p99)
  • • Jitter (ms)
  • • Packet Loss (%)
  • • CPU Usage (%)
  • • Memory Usage (MB)
  • • Connection Success Rate (%)

Real-time Metrics

* Target metrics: Latency <40ms, CPU <50%, Memory <400MB

CloudBridge RTC Architecture

Clients

Desktop App

Mobile App

Web Browser

Transport

QUIC + BBRv3

DTLS 1.3

ICE/STUN/TURN

Server

Rust Core

Sans-IO

Horizontal Scale

Architecture Benefits

  • Sans-IO: separation of I/O from business logic
  • Zero-cost abstractions in Rust
  • Async/await for high concurrency
  • QUIC for reliable delivery

Solved Problems

  • SRTP replay errors
  • High jitter and packet loss
  • Buffer overflow and race conditions
  • Inefficient CPU/memory usage

Key Features

Ultra-Low Latency

Voice communication with <40ms latency through QUIC protocol optimization and SRTP replay error elimination. BBRv3 ensures stable performance.

Memory Safety

Rust implementation eliminates buffer overflow, race conditions and other security vulnerability classes. Guaranteed server stability.

Massive Scalability

Support for 1000+ participants in voice channels with horizontal scaling and Sans-IO architecture. Efficient server resource utilization.

QUIC + BBRv3 Integration

Modern QUIC transport protocol with advanced BBRv3 congestion control for optimal performance in various network conditions.

Related Research

Network Performance Lab

QUIC/MASQUE, BBRv3, FEC optimization to achieve target performance metrics. Provides base protocols for RTC laboratory.

Learn more

Quantum-Safe Lab

Post-quantum cryptography for WebRTC connection protection. Integration of ML-KEM and ML-DSA algorithms into media server.

Learn more

Project Resources

Repositories

Technologies

GitHub Repository