CLSR: Cognitive Link State Routing for CR-based Tactical Ad Hoc Networks

• Hyochun Ahn,
• Jaebeom Kim,
• Young-Bae Ko,

Vol. 9, No. 1, January 30, 2015
10.3837/tiis.2015.01.004, Download Paper (Free):

• Tactical ad hoc networks
• Cognitive radio ad hoc networks
• Link state routing
• Multipoint relay (MPR)
• Location Information

Abstract

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.

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