Mobile hosts run on limited energy source (i.e. battery power) and communicate with each other via wireless links of limited bandwidth.  Hence, it is necessary to incur low communication cost during the transfer of information from one mobile host to another.  In an ad hoc environment, ensuring reliability of obtained information is a major problem due to frequent partitioning of the network as a result of the mobility of servers.  It becomes absolutely necessary to improve the processing time for transactions while respecting battery power considerations and ensuring the reliability of information. Data Replication in Ad hoc mobile databases is gaining importance due to the need for an effective replication scheme and various complications involved in replicating data for ad hoc systems.  Efficient data replication among the energy sufficient hosts could result in providing better and reliable sources to database queries originating from mobile hosts.  Available techniques give solutions for replication in mobile ad hoc networks with compromises on time and consistency respectively.  In our research, we propose an analysis of these present available techniques along with their simulations.  In addition, we propose possible improvements.

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