In this paper, we propose an effective end-to-end

virtual path construction system, which exploits path diversity

over heterogeneous wireless networks. The goal of the proposed

system is to provide a high quality live video streaming service

over heterogeneous wireless networks. First, we propose a

packetization-aware fountain code to integrate multiple physical

paths efficiently and increase the fountain decoding probability

over wireless packet switching networks. Second, we present a

simple but effective physical path selection algorithm to maximize

the effective video encoding rate while satisfying delay and

fountain decoding failure rate constraints. The proposed system

is fully implemented in software and examined over real WLAN

and HSDPA networks.