A Cross Layer Distributed Topology Control Algorithm for Mobile Ad Hoc Networks

Objectives: Mobile Ad-Hoc Networks (MANETs) have several constraints because of its changing nature. So the routing and topology control algorithms for MANETs should be designed in such a way that on any instance the network should ensure minimum interference among the nodes. Hence there is always a need for Quality of Service (QoS). This is contradictory to the objective of minimizing interference. Analysis of Methods: The existing topology control algorithms have taken only the interference as the deciding factor. But the implementation of those works have failed to justify that interference caused delay and thereby the QoS. Several security related issues are there in MANETs. The commonly used security strategy for MANET is Certificate management. In Voting based revocation systems, time consumption and communication overheads are high. In non-Voting based revocation systems, security is at risk. Findings: So in the proposed work, the delay-constrained topology control problem is taken with delay and security as performance metrics. The delay caused due to transmission, contention and queuing delay are taken into account in the proposed algorithm. How the mobility of a node plays a major role in MANET is investigated and the unstable links along with malicious nodes are removed from the topology. Improvement: The results obtained from this proposed cross-layer distributed algorithm for MANETs, where delay plays a crucial role are compared with the existing protocols and has proven to be more advantageous.