Routing In Wireless Personal Area Networks
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Although, the network Standard (IEEE 802.15.4-2003) for Wireless Personal Area Network (WPAN) targeted for Low rate, Low powered, Low memory devices, it has several problems. The primary problem of the specified Tree routing is that the maximum no of child (Router capable or end device) at any level and maximum network depth is fixed and is determined at the time of network formation. So the network can't grow beyond that max. Moreover, in some network configurations, the maximum breadth of the network may be attained but the maximum depth of the network may not be attained (because of the asy...
Although, the network Standard (IEEE 802.15.4-2003) for Wireless Personal Area Network (WPAN) targeted for Low rate, Low powered, Low memory devices, it has several problems. The primary problem of the specified Tree routing is that the maximum no of child (Router capable or end device) at any level and maximum network depth is fixed and is determined at the time of network formation. So the network can't grow beyond that max. Moreover, in some network configurations, 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). Accordingly, a significant number of addresses get unused. In this book, we have addressed the network depth problem and provided several potential solutions such as Address Borrowing etc. Finally, we also 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.
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