A Prototype System for Using Multiple Radios in Directional MANET (Mobile Ad Hoc Network): A NISE Funded Applied Research Project
SPACE AND NAVAL WARFARE SYSTEMS CENTER PACIFIC SAN DIEGO CA
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The performance benefits of using high-gain steerable directional antennas for wireless networks are well known. They include spatial reuse, higher data rates, longer range, low probability of interception and detection LPILPD, and anti-jam capabilities. This performance is desired for backhaul, line of sight LOS, beyond line of sight BLOS, and other tactical-edge wireless networks. From a practical stand point, it is difficult to employ directional antennas in a mobile ad hoc network MANET as most current radio and wireless networking protocols were designed for use with omnidirectional antennas. The fast beam switching of electronically steerable directional antennas represents a physical layer change, and therefore introduces instabilities to many protocol layers of a networking system that are unaware of and unable to quickly adapt to physical layer changes. The Multiple Radio per Node Network Architecture MRNNA makes it is possible to use electronically steerable directional antennas in a MANET in a radio agnostic way by building networks out of dedicated point-to-point links. This document presents a protocol that accomplishes these goals.
- Radio Communications