CLSR: Cognitive Link State Routing for CR-based Tactical Ad Hoc Networks
Hyochun Ahn, Jae‐Beom Kim, Young‐Bae Ko · KSII Transactions on Internet and Information Systems · 2015
The Cognitive Radio (CR) paradigm in tactical ad hoc networks is an important element of future military communications for network-centric warfare.This paper presents a novel Cognitive Link State Routing protocol for CR-based tactical ad hoc networks.The proposed scheme provides prompt and reliable routes for Primary User (PU) activity through procedures that incorporate two main functions: PU-aware power adaptation and channel switching.For the PU-aware power adaptation, closer multipoint relay nodes are selected to prevent network partition and ensure successful PU communication.The PU-aware channel switching is proactively conducted using control messages to switch to a new available channel based on a common channel list.Our simulation study based on the ns-3 simulator demonstrates that the proposed routing scheme delivers significantly improved performance in terms of average end-to-end delay, jitter, and packet delivery ratio.