LAUSR

The paper suggest a series of algorithms for improving the topology control for dynamic cluster for MANET. The paper identifies the problem of network capacity and congestion and resolves by solving the NP-hard problem of $$\alpha $$α-MOC-CDS based $$\alpha $$α-D-equivalence class-MOC-CDS ($$\alpha $$α-DEC-MOC-CDS) with D-equivalence class. The limitations in $$\alpha $$α-DEC-MOC-CDS are considered and resolved by introducing the timer based $$\alpha $$α-DEC-MOC-CDS using initiators with minimum localized information. The approach was improved using optimization in terms of network capacity with optimized $$\alpha $$α-DEC-MOC-CDS (O-$$\alpha $$α-DEC-MOC-CDS) using Kiefer–Wolfowitz stochastic approximation algorithm. Congestion and failure-aware O-$$\alpha $$α-DEC-MOC-CDS (CFA-O-$$\alpha $$α-DEC-MOC-CDS) was introduced for eliminating the congestion and avoiding node failures. The experimental results show that the algorithms reduce the effects of congestion and node failure and maintain the overall MANET performance with efficient topology control.