A clustering OLSR with low control overhead
Chen Junyu, Li Li, Ding Lianghui, Feng Yang, Liang Qian · China Communications · 2025
Heavy routing overhead in Mobile Ad hoc Network (MANET) is a main bottleneck limiting the network performance. In this paper, we propose a novel Clustering OLSR (C-OLSR) approach, which utilizes two schemes, i.e., clustering and optimized Topology Control (TC) message transfer to reduce the control overhead of OLSR while guaranteeing its real-time requirement. To reduce the control overhead, in C-LOSR, flooding of TC messages is only limited in the cluster. All TC messages are integrated into a Cluster Topology Control (CTC) message by the cluster header and broadcast over the network. To satisfy the real-time requirement, any topology change will trigger CTC messages over the network. Extensive simulations have been done to evaluate the performance of the proposed C-OLSR. Results show that C-OLSR can achieve lower control overhead than OLSR by 44.32% in static networks and by 23.21% in dynamic networks.