Autonomous Messenger Based Routing in Disjoint clusters of Mobile Sensor Network

Authors: Nisar Hundewale, Qiong Cheng, Xiaolin Hu, Anu Bourgeois,

Alex Zelikovsky

@cs.gsu.edu

Georgia State University

• Problem Definition

• Messenger Based Solution

• Agent Simulation

• Related Work

• Conclusion

• Future Work

Outline

• Problem Definition

• Messenger Based Solution

• Agent Simulation

• Related Work

• Conclusion

• Future Work

Outline

Base Station

IR Server

Introduction• Mini modern battle field - UVA’s Group Management Model

? ? ?

? ? ?

• The distance between sub nets is

beyond maximum transmission range;

• Information can not be directly delivered;

Adding mobility in regular sensor networks.

Why adding mobility in regular sensor network?

Goal– Maintain connectivity in disjointed mobile

sensor network– Design a framework for routing protocol– Design autonomous messenger-based

route discovery protocols – Design agent simulation

Methodology– Discrete event system simulation

specification– Autonomous agent system design

Project Goal

• Problem Definition

• Messenger Based Solution

• Agent Simulation

• Related Work

• Conclusion

• Future Work

Outline

Solution Framework

Cluster Based Management Component

Based on Straight Line Movement of Messengers(SLMM)

Based on Flexible Sharing Policy of Messengers(FSPM)

Routing Component

Routing Discovery/Maintenance Component

Advanced

RolesMessenger Assignment Policy

Solution Process

Cluster Head

Cluster regular memberMessengerTarget

Network Partition

Wireless CommunicationMessaging

Cut edges between networks partitions (MST edges)

Returning

Solution Assumption

• Every mobile sensor initially has the exact location of base station

• Homogenous environment

• No obstacle and no noise

• Communication process loop

Flexible Sharing Policy of Messengers (FSPM)

4.1

6

1

Cluster A Leader Messenger A’

Base Station

2

3, 5

Cached Pipeline

Pipeline

Cluster B4

4.2

B communication cycle

Towards

Messenger C

3, 5

State Transition Diagram

Route DiscoveryPROCEDURE Pseudo Code (sensor)1 IF (sensor is in roaming status)2 THEN IF (targets have been sensed)3 THEN IF (cluster exists around the targets)4 THEN IF (cluster is full & cluster doesn't need more)5 THEN Change direction6 ELSE Enter in the cluster and possess a suitable position; Share

the cluster Head content; Change status;7 ELSE Become the head of the cluster 8 ELSE Continue to move with random angle 9 ELSE IF (sensor is in active status)10 THEN IF (sensor is cluster head)11 THEN Recording; receiving data; change status; processing,

checking pipeline and waiting time; select messenger; send messenger;

12 ELSE Recording; sending to cluster head

• Problem Definition

• Messenger Based Solution

• Agent Simulation

• Related Work

• Conclusion

• Future Work

Outline

• Mobile sensor networks possess the nature of high dynamical connection and disconnection which is not predicted and predetermined.

• Agent simulation adapts to the nature.• Every autonomous agent corresponds to a

self-configurable, self-adaptable and self-maintainable mobile sensor.

• We designed the agent simulator. It utilized the Discrete Event System Specification (DEVS) and DEVSJAVA which was developed by University of Arizona.

Motivation

Basic Architecture of DMSN Agents

Responsibility of Every Sensor and Target Agent:• Data Structure; • Action Base;• State Transition Machine;• Action Policy;• Messages In/Out;

Responsibility of Every Cluster Coordinator Agent:• Member Management;• Role Management; • Action Management;• Topology Management;

Responsibility:• Register/Deregister Cluster Coordinator Agent;• Coupling Management in DMSN; • Dynamic Simulation Environment Management;

DMSN Coordinator Agent

Cluster Coordinator Agent

……Cluster Coordinator Agent

…… Target Agent

Sensor Agent

Sensor Agent

Framework for DMSN agents modeling & simulation

DEVS Simulation DMSN Agents System

Coupled Model

DEVS Modeling

……Model

……Model

……Coupled Coordinator

Applied Applied

Coupled Model

Atomic Model

DMSN Coordinator Agent

Cluster Coordinator Agent

……Cluster Coordinator Agent

…… Target Agent

Sensor Agent

Sensor Agent

……Coupled Simulator

Coupled Simulator

Coupled Coordinator

Coordinator

Screenshot

Evaluation for Route DiscoveriesChart 1: Energy Consumption Comparison Between Two Routing Discovery Protocols Based

on FSPM and SLMM

0

100000

200000

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600000

700000

600 700 800 900 1000 1100 1200 1300 1400 1500

Time Steps

En

erg

y C

om

su

mp

tio

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SLMM

FSPM

• Problem Definition

• Messenger Based Solution

• Agent Simulation

• Related Work

• Conclusion

• Future Work

Outline

• Ferry based approach; [Ammar MB2002]

• Table-driven routing such as DSDV;

• Source-initiated on-demand routing such as DSR and AODV;

• J. Stankovic, Darpa CleanPoint Presentation Slides - VigilNet, Cleanpoint Talk, Dec. 2004

Related Work

• Study route discovery and routing protocol in disjoint mobile sensor networks;

• Design two messenger based route discovery protocols, SLMM and FSPM;

• FSPM is more energy-efficiency than SLMM;

• More works…

Conclusion

Future Work

Routing component

Target tracking

Intelligently path decision of messengers

THANKS!