Maysam Yabandeh - Router Laboratory, ECE Faculty, University of Tehran, Tehran, Iran
Hossein Mohammadi - Router Laboratory, ECE Faculty, University of Tehran, Tehran, Iran
Nasser Yazdani - Router Laboratory, ECE Faculty, University of Tehran, Tehran, Iran

Mobile Ad-hoc Networking (MANET) is an emerging issue in research and industry since its inherent properties satisfy a broad range of requirements and dreams of the future networking. The infrastructure-less nature of MANETs as well as mobility requirement, makes the routing process as a major basis and consequently challenge for building such networks. Due to frequent changes in the topology of a MANET, route discovery process should be invoked frequently, resulting in significant time, processing, and energy overhead. One might mention that discovering and maintaining multiple routes might degrade the problem in terms of time complexity and energy consumption. In this paper, we discuss the design issues and challenges for a typical multipath routing algorithm for MANETs and identify the major ideas behind different approaches. We also provide a comparative survey of proposed methods as well as their appropriate design issues

MANET, Multipath Routing