Multilevel Address Reorganization Type2 in Wireless Personal Area Network

摘要

The Standard for Wireless personal area network (WPAN) has been given by IEEE 802.15.4-2003 these networks are consists of Low rate, Low powered, Low memory devices. ZigBee Alliance has provided Network layer specification and Physical layer (PHY) and Medium access control (MAC) specification has been given by IEEE. In general the networks are of two kind Tree/Mess. In tree network no routing table is required for routing. After the great success in PAN this technique has also been tried to apply in business Network too. The main problem with this routing is that the maximum no of child (Router capable or end device) at any level and maximum network depth is fixed and this is done at the time of network formation. So the network can't grow beyond that max limit of breadth and width. We have addressed the network depth problem in our paper "Address B orrowing in Wireless Personal Area Network". Now in some other network configuration the maximum breadth of the network may be attained but the maximum depth of the network may not be attained (because of the asymmetric nature of the physical area) at that part and hence address lies unused. Here In this paper we have provided a unified address reorganizing scheme which can be easily applied to tree network so that the network can grow beyond the maximum no of child present at any level and overcome the address exhaustion problem by reorganizing address as per the requirement but without adding any extra overhead of having a routing table