ABSTRACT

Delay aware routing protocols make path selection between source and destination based on the delay over the discovered links during routing discovery and routing table calculations. Conventional routing protocols such as AODV, DSR and OLSR use minimum hop count or shortest path as the main metric for path selection. However, networks that require high Quality of Service (QoS) needs to consider several criteria’s that could affect the quality of the chosen path in packet forwarding process. This study presents a review of existing delay aware routing protocols looking at their proposed solutions features, which could be very useful for future improvement.