in Body Area Networks K Latif N Javaid Kamran Latif Senior System Analyst National Instit ute of electronics Pakistan PhD Scholar COMSATS Pakistan Presented In The 28 th IEEE International Conference on ID: 357604
Download Presentation The PPT/PDF document "Energy Hole Analysis for Energy Efficien..." is the property of its rightful owner. Permission is granted to download and print the materials on this web site for personal, non-commercial use only, and to display it on your personal computer provided you do not modify the materials and that you retain all copyright notices contained in the materials. By downloading content from our website, you accept the terms of this agreement.
Slide1
Energy Hole Analysis for Energy Efficient Routingin Body Area Networks
K. Latif, N. Javaid
Kamran. Latif
Senior System Analyst, National Instit
ute of electronics, PakistanPhD. Scholar, COMSATS, Pakistan
Presented In:The 28th IEEE International Conference onAdvanced Information Networking and Applications (AINA-2014) Victoria, Canada,
1Slide2
MotivationsEnergy Hole Analysis of routing techniques:
Direct Transmission Technique (DTT)Cluster Based routing Technique (CBT)Intermediate node Transmission Technique (ITT)
in Wireless Body Area Networks (WBANs) under different packet size, distance, and effect of overhearing. 2Slide3
Communication Architecture in DTT, CBT, and ITT
3Slide4
Sensor Nodes Deployment
Sensor Nodes deployment with sequence numbers as depicted in plots.
4
Seq. No.
Sensor Node1EEG2Hearing Aid3Position4ECG5Glucose6SPO2
7Insulin pump8EMG Lactic Acid9Motion10PressureSlide5
WBAN Radio Energy Consumption
(
eq
. 1) [1] (eq . 2) [1]where is transmission energy, is receive energy,
is path loss coefficient, d is distance, and is number of bits to be transmitted or receivePath loss in human body may occur due to:MobilityPostures[1] Reusens, Elisabeth, et al. "Characterization of on-body communication channel and energy efficient topology design for wireless body area networks." Information Technology in Biomedicine, IEEE Transactions on 13.6 (2009): 933-945. 5Slide6
Energy Consumption in DTT
Transmit Energy
(eq. 3) Receive Energy of Listener node
(eq. 4)
, (eq. 5)where is the probability of nth listener node that may exist with in the range of transmitter node 6Slide7
Energy Consumption in IBT
Two types of nodesOriginator nodeIntermediate node
Transmit energy of originator node (eq. 6)Transmit energy of intermediate node (eq. 7)
Where ɸ is the data aggregation factor
7Slide8
If there are m intermediate nodes then total energy consumption of all intermediate nodes for the whole network
lifetime is given by the following equation: (eq. 8)Receive Energy of Listener nodes:
(eq. 9)
Energy Consumption in
IBT8Slide9
Energy Consumption in CBT
Two types of nodes:Normal nodesCH nodesTransmit energy of normal nodes will be consumed according to eq. 1
Transmit energy of CH nodes (eq. 8)
9Slide10
Energy Consumption in CBTReceive energy of CH nodes
Receive Energy of listener nodesIf there are m listener nodes each with probability
of existence p then, total receive energy of all these nodes is :
10Slide11
DISCUSSION AND RESULTS
11Slide12
Effect of Distance on Energy Consumption
Due to small distances in WBAN, effect of distance on DTT and ITT is minimum.High energy consumption of CBT is because of packet size, because packet size of CH is greater than normal nodes.
12Slide13
Effect of Distance on Lifetime of nodes
Nodes near to coordinator have longer life time in DTT and ITT Nodes
away from coordinator have almost equal effect on lifetime.In CBT, nodes nearer to coordinator has smaller lifetime because of large packet size.
13Slide14
Effect of Packet size on Energy Consumption of nodes in ITT & DTT
Effect of packet size
on energy consumption is minimal on the nodes near to coordinatorWhereas it appeared as multiplicative shift on distant nodes.
14Slide15
Effect of Packet size on Energy Consumption of nodes in CBT
Effect of packet size appeared as multiplicative shift in the energy consumption of nodes
15Slide16
Effect of Over-hearing on Energy Consumption of nodes in CBT
In CBT, effect of over-hearing is minimal as compared to DTT and ITT, reason behind
minimal effect is the distance between node and CH is minimumNodes with in the cluster are affected due to over hearing, therefore energy consumption is increased16Slide17
Effect of Over-hearing on Energy Consumption of nodes in DTT & ITT
Energy consumption is largely affected due to over-hearing in DTT and ITTHowever in DTT, over-hearing is creating
almost double effect on energy consumption.17Slide18
Conclusion
We analysed DTT, ITT, and CBT in WBANWe found that distance does not effect transmission energy in DTT, because of small distances.
Over-hearing effects DTT energy consumption because a far distance node when transmits data to coordinator, its transmission radius increases and maximum nodes are affected.This may become a reason for creation of energy hole
if over-hearing is controlled at MAC or routing layer then DTT provides better result.18Slide19
Conclusion
In ITT, reduction in transmission distance reduces overhearing effect. However increased data size at
forwarding node causes more consumption of energy. Therefore ITT is more suitable for applications in which life time of nodes with more critical data is to be increased with reduced overhearing effects.
19Slide20
Conclusion
In CBT, CHs energy is badly affected due to large size of dataCH at far distance from coordinator then its energy consumed very quickly
CBT produces less overhearing effects with in the cluster Therefore CBT technique is more suitable for applications where periodic forwarding of data is to be required.
20Slide21
Future Work
we are intended to propose an intelligent energy efficient technique which takes benefits of DTT, ITT, and CBT depending on nature of traffic (critical, emergency
, normal) and optimize throughput and lifetime of network.21