Impact of network density on bandwidth resource management in WSN


Durmaz Incel, Ozlem and Hoesel, Lodewijk van and Jansen, Pierre and Havinga, Paul (2005) Impact of network density on bandwidth resource management in WSN. [Report]

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Abstract:We describe a self-organizing, clustering protocol for band-
width resource management in Wireless Sensor Networks. The proposed
protocol allows the sensor nodes to communicate by a time-slotted, sched- uled MAC algorithm. When the nodes are densely deployed, i.e., the connectivity is very high, the MAC algorithm may not provide access for all of the nodes due to the limited number of time-slots, consequently the network capacity degrades. To overcome this drawback, we extend the time-slotted MAC algorithm by clustering the nodes into di®erent frequency domains while they can use the same time domain. The idea is basically to multiplex the time domain with the frequency domain.
As a result, the number of nodes that are granted access to the wireless medium is increased by the number of frequency channels available. By using simulations, we evaluate the performance of the protocol. The results reveal that frequency multiplexing has the e®ect of increasing the capacity up to 100%.
Item Type:Report
Copyright:© 2005 CTIT
Electrical Engineering, Mathematics and Computer Science (EEMCS)
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