Study Of Routing Protocol Based On MIMO Technology In Ad Hoc Networks

Routing technology performs an important role in Ad Hoc networks, and MIMO(Multiple-Input Multiple-Output) technology is a hot spot on research nowadays, with its multiplexing and diversity strategy being of a great advantage compared with the traditional SISO links, so how to introduce this to routing protocol design in Ad Hoc networks in order to achieve better performance would be most of the work in this paper. On the basis of both the diversity and multiplexing gains, further detailed work on the tradeoff between the two strategies is carried out, thus Group diversity and multiplexing(Group-MUX) link with both the two gains is proposed, which would then be adopted in the routing protocol design. Consequently, a MIMO-based Source Routing(MISR) protocol is presented. It consists of multi-links: diversity link, multiplexing link and Group-MUX link in this protocol, which could self-adapt various-density scenarios to obtain the optimal route. Through elaborate analysis, it is concluded that MISR protocol can do a great contribution on improving aggregate throughput and end-to-end delay performances. Finally, simulations are implemented in terms of business load, node density and mobility in OPNET environment, and then the synthetically performing advantages of MISR protocol are testified through the result analysis.