1 / 19

PPT

MODLEACH VARIANT

athelliaravind
Download Presentation

PPT

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. CMR ENGINEERING COLLEGE KANDLAKOYA(V),MEDCHAL(M),R.R.DIST,(TS) DEPARTMENT OF ELECTRONICS AND COMMUNICATION A PRESENTATION ON MODLEACH: A Variant of LEACH for WSNs SUBMITTED BY : BM.VAIJINATH A.ARAVIND GOUD B.SWATHI REDDY BH.SATYAVANI GUIDE : AMRU

  2. BIG TEXT * ABSTRACT * AIM * INTRODUCTION * APPLICATIONS * PROPERTIES * OPERATION AND WORKING * CONCLUSION * FUTURE SCOPE

  3. ABSTRACT: * Cluster Based Routing in Wireless Sensor Networks * We divided our work into two parts MEDIUM TEXT > Modification in LEACH protocol . >Efficient Cluster Head Replacement scheme . >Dual Transmission power levels . SECOND PHASE: > Implement soft and hard thresholds in MODLEACH . > Performance analysis with respect to network stability, throughput and cluster head formation.

  4. INTRODUCTION: Routing in Wireless Sensor Networks * Major Limitations of Wireless Sensor Networks. >Energy >Uncontrolled environment . * Role of routing protocol to cope with these limitations. >Minimal usage of energy is key responsibility of routing protocol running on WSN however, environment can not be controlled fully.

  5. Cluster Based Routing (1) * In clustering, whole network is divided into fixed or variable sized clusters containing sensor nodes in it. * Each cluster is represented by a cluster head that is responsible for communication between base station/ sink and other non cluster head nodes. * Non cluster head nodes of cluster communicates only with cluster head hence minimizing energy utilization.

  6. Cluster Based Routing (3) * Here nodes are organized into clusters that communicate with a local BS (CH) and these local Base Stations transmit the data to the global BS, where it is accessed by the end user. * Reduced distance of data transmission as the local BS (CH) is typically close to all nodes in the Cluster but BS becomes energy constrained * As soon as cluster -head node dies, all nodes from that cluster effectively die since there is no way to get their data to the base station. * In Adaptive clustering, cluster heads change as nodes move in order to keep the network fully connected

  7. Cluster Based Routing (4) * Cluster based routing has proven itself as efficient routing strategy in WSNs. * Many routing protocols are derived using clustering mechanism that gives efficient wireless sensor network. * LEACH, being the parent routing protocol receives many enhancements.

  8. MODLEACH : * To understand the proposed modifications or enhancements in LEACH. * we initially have to understand Functionality. & * operability of LEACH protocol.

  9. BIG TEXT * LEACH (Low-Energy Adaptive Clustering Hierarchy) is a routing protocol for wireless sensor networks in which: >The base station (sink) is fixed > Sensor nodes are homogenous * LEACH conserves energy through: >Aggregation >Adaptive Clustering

  10. LEACH Properties : * Adaptive Clustering Distributed * Randomized Rotation Biased to balance energy loss * Heads perform compression aggregation * In-cluster TDMA

  11. LEACH Operation : * The operation is broken up into rounds >Advertisement phase >use CSMA MAC protocol, and all cluster heads transmit with same energy * Set up phase : Cluster is organized each node transmits to which cluster head it wants to belong to using a CSMA MAC * Steady State Phase: Data Transfers to Base Station occur.

  12. Problems and their solutions * LEACH gives adaptive clustering mechanism which very efficiently deals with energy conservations. * However, Leach doesn’t take account of residual energy of a node. * To address this, a novel technique as efficient Cluster head Replacement is proposed. * To address this, multi amplified power levels are introduced.

  13. MODLEACH : * Basically, in MODLEACH, two modifications/ enhancements are made. * These enhancements are (as discussed earlier): >Efficient cluster head replacement technique >Dual amplification power levels

  14. Simulations Tool and Parameters * Simulations are conducted using MATLAB (R2009a) and to get precise plots, confidence interval is taken.

  15. Simulation Results * Simulations show that MODLEACH performs better considering metrics of throughput, network life time, and optimized cluster head formation of network w.r.t LEACH. * MODLEACH is further improved by using the concept of soft and hard threshold as introduced by TEEN. MODLEACHHT further improve efficiency however, MODLEACHST performs best amongst all.

  16. Cluster head formation and scope : * Initially as modified in LEACH, MODLEACH executes same cluster heads for next round/s if they have energy greater than defined threshold. * This is the reason of stable number of cluster heads initially.

  17. CONCLUSION * The two techniques utilized in MODLEACH can further be utilized in other clustering routing protocols for better efficiency. * MODLEACH tends to minimize network energy consumption by >efficient cluster head replacement after very first round and >dual transmitting power levels for intra cluster and cluster head to base station communication. *In future, we will carry our work >to calculate routing load of MODLEACH, MODLEACHST and MODLEACHHT analytically >And to apply efficient cluster head replacement mechanism along with dual transmission power levels in other clustering routing protocols of wireless sensor networks to study their impact in a broader sense.

  18. THANK YOU

More Related