On qo s provisioning in context aware wireless sensor networks for healthcare
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The document presents a study on the quality of service (QoS) requirements for healthcare applications using context-aware wireless sensor networks (WSNs). It outlines the challenges in remote medical monitoring, the network architecture, and proposes a QoS-aware routing framework that includes dynamic packet classification, energy-aware geographic routing, reliability, and delay control mechanisms. The work aims to address the remaining research challenges in achieving context-aware WSNs for health monitoring applications.
On qo s provisioning in context aware wireless sensor networks for healthcare
- 1. OOnn QQooSS PPrroovviissiioonniinngg iinn CCoonntteexxtt--AAwwaarree WWiirreelleessss SSeennssoorr NNeettwwoorrkkss ffoorr HHeeaalltthhccaarree AAuutthhoorr:: MMaarriioonn SSoouuiill,, AAbbddeellmmaaddjjiidd BBoouuaabbddaallllaahh.. UUnniivveerrssiittyy ooff TTeecchhnnoollooggyy ooff CCoommppiieeggnnee,, UUMMRR CCNNRRSS 66559999.. PPrreesseenntteedd bbyy:: Iffat Anjum(Roll: 16) Nazia Alam(Roll: 28) 15th Batch. DDaattee:: 19th April, 2012 Green Networking Research Group Dept. of Computer Science and Engineering, University of Dhaka Slide 1
- 2. CCoonntteennttss Contribution. Problem Definition. • Related works. Network Model. Proposed QoS-aware Routing. • The dynamic packet classifier. • Energy-aware Geographic Forwarding Functions. • Reliability Control. • Delay Control. Slide 2 2 Green Networking Research Group Dept. of Computer Science and Engineering, University of Dhaka
- 3. CCoonnttrriibbuuttiioonnss This paper studies the specific QoS requirements of healthcare application, considering context-awareness as an essential part to adapt the network performance to a new situation. Also discuss the strengths and weakness of related work regarding context awareness and different characteristics of WSN for healthcare. It also points out remaining challenges and addresses open research issues on this subject. 3 Slide 3 Green Networking Research Group Dept. of Computer Science and Engineering, University of Dhaka
- 4. Slide 4 PPrroobblleemm DDeeffiinniittiioonn Remote medical monitoring using WSN should consist of many features like, Continuous medical monitoring, Emergency alerts, Location tracking, Home automation. The QoS level must adapt itself dynamically ,as the patient condition may change so the QoS requirement also changes. Scarce resources also makes it challenging to support context-awareness and to deal with security, fault tolerance and mobility. Green Networking Research Group 4 Dept. of Computer Science and Engineering, University of Dhaka
- 5. PPrroobblleemm DDeeffiinniittiioonn There are very little research work has focused on QoS support for wireless sensor networks in health monitoring applications, a lot still need to be done to achieve context-aware WSN. And no single The concern should be given to two perspectives, User-oriented, Network-oriented. 5 Slide 5 Motivation Green Networking Research Group Dept. of Computer Science and Engineering, University of Dhaka
- 6. Specificities ooff WWSSNN ffoorr HHeeaalltthhccaarree 6 Slide 6 Green Networking Research Group Dept. of Computer Science and Engineering, University of Dhaka
- 7. NNeettwwoorrkk MMooddeell Slide 7 7 Figure: Body Area Sensor Network (BASN) Green Networking Research Group Dept. of Computer Science and Engineering, University of Dhaka
- 8. NNeettwwoorrkk MMooddeell The network model has several basic components: All Biomedical sensors (BMSs) transmits data to a central node, called body sensor mote (BSM). All BSMs process & forward data to multiple sink in multi-hop fashion. In this architecture ,the master and slave BSMs form clusters of BASN ,these clusters form the backbone network ,as shown in previous slide. Each BSM node broadcast a HELLO packet to its neighbors which contains: • Its current position. • Residual energy. • Average queuing delays. Slide 8 8 Green Networking Research Group Dept. of Computer Science and Engineering, University of Dhaka
- 9. PPrrooppoosseedd QQooSS--aawwaarree RRoouuttiinngg DMQoS consists of 5 modules: • The dynamic packet classifier. • Delay control. • Reliability control. • Energy-aware geographic routing. • QoS-aware queuing and scheduling. • OP: Ordinary data packets. • RP: Reliability driven data packets. • DP: Delay driven data packets. • CP: Most critical data packets. Slide 9 9 Dynamic Packet Classifier Green Networking Research Group Dept. of Computer Science and Engineering, University of Dhaka
- 10. PPrrooppoosseedd QQooSS--aawwaarree RRoouuttiinngg Slide 10 Figure : Data-centric multi-objective QoS-aware routing architecture. 10 Green Networking Research Group Dept. of Computer Science and Engineering, University of Dhaka
- 11. PPrrooppoosseedd QQooSS--aawwaarree RRoouuttiinngg Energy-aware Geographic Forwarding Slide 11 Multiobjective Lexicographic Optimization Approach: The most Important function being, Green Networking Research Dept. of Computer and Engineering, University of Dhaka 11 The least important being, So the lexicographic problem, Green Networking Research Group Dept. of Computer Science and Engineering, University of Dhaka
- 12. PPrrooppoosseedd QQooSS--aawwaarree RRoouuttiinngg Energy-aware Geographic Forwarding Slide 12 The lexicographic problem can be divided into two separate problems with different constraint sets. Where the first problem is : Green Networking Research Dept. of Computer and Engineering, University of Dhaka 12 And the second problem is: Green Networking Research Group Dept. of Computer Science and Engineering, University of Dhaka
- 13. PPrrooppoosseedd QQooSS--aawwaarree RRoouuttiinngg Green Networking Research Dept. of Computer and Engineering, University of Dhaka Slide 13 13 Reliability Control Algorithm 1 : Reliability Control Algorithm, at each source node i Green Networking Research Group Dept. of Computer Science and Engineering, University of Dhaka
- 14. PPrrooppoosseedd QQooSS--aawwaarree RRoouuttiinngg Green Networking Research Dept. of Computer and Engineering, University of Dhaka Slide 14 14 Reliability Control Green Networking Research Group Dept. of Computer Science and Engineering, University of Dhaka
- 15. PPrrooppoosseedd QQooSS--aawwaarree RRoouuttiinngg Green Networking Research Dept. of Computer and Engineering, University of Dhaka Slide 15 15 Delay Control Algorithm 2 : Delay Control Algorithm, at each node i Green Networking Research Group Dept. of Computer Science and Engineering, University of Dhaka
- 16. PPrrooppoosseedd QQooSS--aawwaarree RRoouuttiinngg Slide 16 16 Delay Control Green Networking Research Group Dept. of Computer Science and Engineering, University of Dhaka
- 17. TThhaannkk YYoouu Green Networking Research Group 17 Dept. of Computer Science and Engineering, University of Dhaka