%0 Journal Article %T A Novel Cluster Validation Approach on PSO-PAC Mechanism in Ad Hoc Network %A S.Thirumurugan %A E. George Dharma Prakash Raj %J International Journal of Wireless & Mobile Networks %D 2013 %I Academy & Industry Research Collaboration Center (AIRCC) %X The ad hoc network places a vital role in contemporary day¡¯s communication scenario. This networkperformance gets up while the clustering phenomenon has been incorporated. The cluster formationusing the vital parameters is incredible on deciding the efficiency level of the clustered ad hoc networks.The PSO-PAC mechanism forms clusters based on swarm intelligence by considering energy as crucialparameter. This optimized cluster helps to suits the applications where the energy parameter plays a keyrole. The clusters formed by this mechanism may not ascertain the compactness of the clusters. Thus, thispaper proposes D-PAC as an index based validation mechanism to be handled on clusters formed usingPSO-PAC. The cluster formation and validation mechanism have been implemented using OMNET++simulator. %K PSO-PAC %K D-PAC %K Dunn¡¯s Index %K IPv6. %U http://airccse.org/journal/jwmn/0213wmn15.pdf