Reducing Routing Loops Under Link-State Routing in Wireless Mesh Networks

Abstract

of MAC transmission, and ETT (Expected Transmission Time) [13] extends ETX to quantify the average transmission time of a MAC frame in the link.As far as proactive link-state routing such as OLSR is concerned, it is well understood that introducing dynamic link metrics make networks far robust and resilient, and consequently improve performance of networks in practical situations. However, simultaneously, such dynamic metrics cause communication paths to be changed frequently. Note that the paths flapping behavior is not always bad, because it is the result of continuous effort of routing protocols to find better quality paths. Nevertheless, it certainly increases the risk of several inconvenient phenomena such as packet looping.