A Data Access Method Considering Power Consumption in Ad Hoc Networks

Abstract

In ad hoc networks, it is effective that each mobile host creates replicas of data items held by other mobile hosts for improving data accessibility. When a mobile host requests a data item (replica) held by another mobile host, it usually uses the shortest path for the data transmission. In this case, mobile hosts at the center of the network relay many data items and consume much power. In this paper, we propose a data access Disconnection method to balance the power consumption among mobile hosts. This method selects a path between the request issuing host and the requested data holder considering the path length and the remaining amount of batteries of mobile hosts along the path.We present simulation results to evaluate the performance of our Fig. 1. Network partition in ad hoc networks. proposed method.

Energy Efficient Data Access in Mobile Ad Hoc Networks

“…Our research group has been studying several issues on data replication in MANETs and published a number of papers on these issues [5][6][7][8][9], [12], [13].…”

“…A recent survey paper [3] has reported that a method proposed by us [13] seems the best solution among the existing energy-aware replication protocols. In the following, we present data replication and data access methods which we proposed in [12], [13].…”

“…In [12], we proposed data access methods to balance the power consumption among mobile hosts in MANETs. In the data access methods, a mobile host requesting a data item held by another host floods its connected mobile hosts with a query and mobile hosts holding the requested data item transmit replies.…”

“…In section II, we present data replication and data access methods considering the remaining amount of the battery of each mobile host in MANETs which we proposed in [12], [13]. In section III, we present a message processing method for topk queries in MANETs which we proposed in [5].…”

Energy Aware Database Updating Protocols for Autoconfigurable Sensor Networks

“…Other works such as [6] and [7] propose energy aware methods but networks include sink node and powered permanent base station. [8] and [9] are energy aware data replication but rely on data access frequencies, on path length and the remaining amount of batteries of mobile hosts along the path whereas our method is independent of how data is accessed.…”