Systems Engineering and Electronics ›› 2022, Vol. 44 ›› Issue (7): 2329-2340.doi: 10.12305/j.issn.1001-506X.2022.07.30

• Communications and Networks • Previous Articles     Next Articles

Cross layer MAC protocol design of NNSs based on graded nodes

Haolun GU1,*, Guorong ZHAO1, Jinbo YAO2, Chao GAO1   

  1. 1. Coast Guard Institute, Naval Aviation University, Yantai 264001, China
    2. NARI Technology Company Limited, Nanjing 211106, China
  • Received:2021-04-22 Online:2022-06-22 Published:2022-06-28
  • Contact: Haolun GU

Abstract:

In order to solve the problems of high-speed mobility, energy limitation and communication delay of nodes in networked navigation systems(NNSs), a cross layer medium access control (MAC) protocol based on graded nodes(GN-MAC) is designed by which a routing algorithm combining cross routing tree construction based on mobile sink and chain clustering(CRTCC) is mixed. GN-MAC adopts the way of media access based on competition, defines the packet format according to the characteristics of CRTCC, and completes the virtual clustering with multi-level nodes. At the same time, an improved node mobility detection algorithm is designed, the optimal inter cluster handoff decision is made, and the priority based competition and multi-channel communication are proposed. Finally, the simulation shows that the delay and energy consumption are effectively controlled in the case of high-speed mobile nodes and multiple mobile nodes.

Key words: networked navigation systems (NNSs), cross layer medium access control (MAC) protocol, graded nodes, virtual clustering, mobility-detection

CLC Number: 

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