Research And Simulation Of MAC Address Multiplexing Compression Algorithm In Sensor Networks

As a new network platform, wireless sensor networks have been applied to moreand more field. Instructions can be sent conveniently to the sensor networks of thespecific area by the user in the remote control room, and the user can get feedbackthrough multi-hop communication between nodes and the networks communicationafter the sensor nodes executed the instructions. Those meet the demands of thereal-time monitoring of the special circumstances greatly, and thus promote thedevelopment of science.However, as the key component of the sensor networks, the energy of thewireless sensor node is limited because of its size. The further development of thesensor networks will be constrained by the contradictions between the limited energyand the mass data transfer, it is really a problem which demanding prompt solution.One effective way to reduce the amount of sensor networks’ data is to reduce thecareless transmission control data packet, and the directly way to reduce the length ofthe transmission control data packet is compressing the MAC address of the node.This article advances a new method which can increase the utilization of wirelesschannel through changing the traditional global unique MAC address to the localreuse and reducing the length of the MAC address by reusing the address by using thelocal communication of the sensor nodes.This article uses a method which compresses the length of the MAC address byusing the reuse algorithm of the MAC address based on mesh division which dividedthe whole network into a series of the reuse area that include several cells, every areaselected its cluster based on the Cluster Election Algorithm, and the rest cells will benode. When distributing the MAC address for nodes, it takes the strategy ofconsidering separately: The cluster reuse the address by taking the number of the cellas its MAC address, when the node get its MAC address through the Node AllocationAlgorithm. A logical assignment algorithm for the node within cluster is proposed inthis article to cope with the impact of the randomly arrange of wireless sensor node onthe reuse algorithm of the MAC address. The cluster node permit its’ adjacent nodesturn to the cell where the cluster is with not increasing the address length of thecluster head node. So this algorithm makes the whole network more uniformrelatively by reducing the MAC address length of the node of the adjacent cells. To verify the effectiveness of the algorithm, the paper designs and implements asimulation system based on Intel data acquisition experiment in the OMNeT++platform. The simulation system introduces the algorithm into a TinyOS operatesystem which taken by the nodes and reduces the address length which carried by theheader of node when the node transmits messages. The results of comparisonexperiments show that this simulation system does effectively reduce the addresslength with small extra storage.