Abstract:
Ad-Hoc networks are decentralized wireless networks. A fundamental problem in
Ad-Hoc networks is finding a secure and correct route between a source and a destination
efficiently. The need for scalable and energy efficient routing protocols, along with the
availability of small, inexpensive and low power positioning instruments, results in making
position-based routing protocols a promising choice for mobile Ad-Hoc networks. This
paper presents an extensive overview of the existing Ad-Hoc unicast routing protocols that
make forwarding decisions based on the geographical position of the destination of a
packet, while keeping security issues in mind. We outline the main problems for this class of
routing protocols and a qualitative comparison of the existing protocols is done in regards
to both security and performance issues. We conclude our work by investigating some
future research opportunities.
