This paper proposes an Ant Colony algorithm based QoS Routing (ACQR) for wireless mesh networks

focusing on optimization problem regarding to multi-constrained QoS path selection.Using ant colony algorithm

this solution dynamically constructs path set that meets the requirements in end-to-end bandwidth

delay

packet loss rate and jitter

from which a node chooses a reasonable path according to predetermined fitness function.Our simulation results demonstrate that the proposed ACQR can reduce end-to-end delay and jitter

improve delivery ratio

and provide delay and reliability guarantees for data transmission.