Replica Placement In Unstable Radio Links

The growth in wireless communication technologies has immensely gained a lot ofattention in ad-hoc networks especially in the area of mobile hosts. As the networktopology in this type of ad-hoc networks changes dynamically, chances of networkgetting disconnected is also very frequent due to unstable radio links for shorter timeintervals. In this paper, we proposed a succinct solution for the problem replica allocationin a mobile ad-hoc network by exploring group mobility. The solution for this problem iscarried out in three phases. Thus, with this solution even if the hosts get disconnectedwe can replicate the data items on to mobile hosts so that the mobile hosts can stillaccess the data. Several experiments are conducted to evaluate the performance of theproposed scheme. The experimental results show that the proposed scheme is able tonot only obtain higher data accessibility but also produce lower network traffic than priorschemes.