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

摘要

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