Abstract
Due to the development in the field of Wireless Sensor Networks (WSNs), its major application, Wireless Body Area Network (WBAN) has presently become a major area of interest for the developers and researchers. Efficient sensor nodes data collection is the key feature of any effective wireless body area network. Prioritizing nodes and cluster head selection schemes plays an important role in WBAN. Human body exhibits postural mobility which affects distances and connections between different sensor nodes. In this context, we propose maximum consensus based cluster head selection scheme, which allows cluster head selection by using Link State. Nodal priority through transmission power is also introduced to make WBAN more effective. This scheme results in reduced mean power consumption and also reduces network delay. A comparison with IEEE 802.15.6 based CSMA/CA protocol with different locations of cluster head is presented in this paper. These results show that our proposed scheme outperforms Random Cluster head selection, Fixed Cluster head at head, Foot and Belly positions in terms of mean power consumption, network delay, network throughput and bandwidth efficiency.
Highlights
A wireless sensor network (WSN) consists of sensor nodes to examine and monitor environmental factors such as temperature, sound etc. and send their data to the base station as discussed in [1] [2] [3]
These results show that our proposed scheme outperforms Random Cluster head selection, Fixed Cluster head at head, Foot and Belly positions in terms of mean power consumption, network delay, network throughput and bandwidth efficiency
We can ensure that the two nodes are connected and data transmission is taking place successfully. There is no such mechanism in IEEE 802.15.6 based CSMA/CA protocol. Another approach that we have introduced is the idea of adaptive cluster head selection with nodal priority in CSMA/CA, protocol which
Summary
A wireless sensor network (WSN) consists of sensor nodes to examine and monitor environmental factors such as temperature, sound etc. and send their data to the base station as discussed in [1] [2] [3]. As the human body moves, the wireless connectivity amongst the nodes varies In this situation, the data cluster head has to be changed and adjusted as distance between sensor nodes varies. Another thing, which is very important for a cluster head, is its accessibility by all neighboring nodes This would ensure that each node sends its data to the cluster head, which will increase the reliability of WBAN. The main objective of proposed scheme is to make WBAN more reliable and energy efficient by introducing idea of acknowledgement and adaptive cluster head selection in CSMA/CA protocol. We can ensure that the two nodes are connected and data transmission is taking place successfully There is no such mechanism in IEEE 802.15.6 based CSMA/CA protocol.
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