2/10/2016 Mobile Ad hoc Networks COE 549 Routing Protocols III Tarek Sheltami KFUPM CCSE COE

Outline Self-study lecture 2/10/20162

Position Unaware Routing All the routing protocols that we have discussed so far can be called position unaware routing. Each node has an address and each node keeps track of the neighbours´ addresses. However, when a message has to be sent from a source to a destination, the source node is not aware of the current position of the destination. 2/10/20163

Position Aware Routing In contrast, in position aware routing, a source node knows the position or location of the destination node. The position information can be collected in different ways : From the direction and strength of the received wireless signals Through interfacing with a low-power Global Positioning System (GPS) and a satellite updating the positions of the nodes by sending signals to this GPS device. 2/10/20164

Location Services Distance Routing Effect Algorithm for Mobility (DREAM) Quorum-Based Location Service Grid Location Service (GLS) Homezone Read this paper: Martin Mauve, et al, “A Survey on position based routing in ad-hoc networks “, IEEE Network Magazine 15 (6), pp , November /10/20165