Fast Dual-Radio Cross-Layer Handoffs in Multi-Hop Infrastructure-mode 802.11 Wireless Networks for In-Vehicle Multimedia Infotainment

TL;DR

This paper introduces a dual-radio cross-layer handoff scheme for 802.11 wireless networks in vehicles, significantly reducing latency and packet loss to improve multimedia infotainment delivery during frequent handoffs.

Contribution

It presents a novel dual-radio cross-layer handoff method specifically designed for high-mobility vehicular environments, with an implementation and performance evaluation.

Findings

Reduced handoff latency in vehicular networks

Near-zero packet loss during handoffs

Effective multimedia delivery in high-mobility scenarios

Abstract

Minimizing handoff latency and achieving near-zero packet loss is critical for delivering multimedia infotainment applications to fast-moving vehicles that are likely to encounter frequent handoffs. In this paper, we propose a dual-radio cross-layer handoff scheme for infrastructure-mode 802.11 Wireless Networks that achieve this goal. We present performance results of an implementation of our algorithm in a Linux-based On-Board-Unit prototype.