Research On Mobile Agent Migration Strategy In Wireless Sensor Networks

In recent years, with the development of wireless communications technology and electronicdevice technology, wireless sensor networks (WSN) become a growing concern emergingtechnology of human beings. Wireless sensor networks does not require fixed infrastructure, butnetworked by a large-scale of sensor nodes. These sensor nodes are used to collect physicalinformation data, process and transmit data by interacting with other nodes to meet the requirementsof the human. In the future, wireless sensor network has great potential in military deployment,disaster relief, environmental monitoring, medical health, smart buildings and other commercialfields.Distributed computing plays an important role in wireless sensor networks. The client/serverparadigm and the distributed computing paradigm based on mobile agent is a mainstreamtechnology in the sensor network. Mobile agent is very suitable for wireless sensor networks whichhave large-scale unattended and limited resources because of its autonomy, communication,mobility and roles in both distributed computing paradigm. Mobile agent is a block contains codes,data and execution context then migrates within the network in accordance with a certain purpose.That means it is a software entity uses distributed resources(wireless sensor network nodes) tolocally interact and complete the assigned task. Generally, mobile agent need to migrate tomultiple hosts or machines with an order and interact with them. Mobile agent uses host resourcesto take data computing and information processing, so agent migration technology is a hot researchproblem in mobile agent paradigm.This dissertation studise existing mobile agent migration algorithm, as well as the keyelements of the mobile agent migration strategy, then static migration list algorithm and dynamicmigration list algorithm are proposed to matching the characteristics of wireless sensor networks.This thesis analysis of their respective strengths and weaknesses, then proposes the predicetedinformation-driven dynamic migration list algorithm for the features of target tracking.Subsequently select three metrics (energy consumption, network lifetime, and the number of hops)to analysis these three algorithms which uses of the NS-2simulation tool. In the practicalapplication of mobile agent migration technology, the program often synthesized by multiplemobile agent collaboration, which will take scheduling difficult of migration strategy. This thesispresents a multi-mobile the agent migration mechanism to solve this problem, then compared with other programs to highlight the performance advantages, and set realistic case application ofmultiple mobile agent migration strategy.Middleware technology is an emerging software technology in recent years, the birth of themiddleware technology is also the support technology of agent migration strategy. As the basisauthor realize this design of the static migration list algorithm and the dynamic migration listalgorithm. The success of both migration algorithm realize there will be some reference value offuture mobile Agent migration research.