new algorithm for load management and battery life optimization

8/2/2019 New Algorithm for Load Management and Battery Life Optimization

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GINU GEORGE & ASST PROF. T.VELMURUGAN

NANDU RAJENDRAN SENSE DEPARTMENT

VIT UNIVERSITY VIT UNIVERSITY

VELLORE VELLORE


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HANDOFF or HANDOVER Changing the channel associated with the current

connection while a call is in progress.

Handoff between more or less different wireless

technologies is termed as VERTICAL HANDOFF. WLAN and UMTS are two types of networks

considered here.

Load management, collective battery life time of the

mobile devices connected and signal strength areconsidered as the criteria for handoffs

BS-base station, AP-access point and MN-mobilenodes are the notations used


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Develop a load management Algorithm to

efficiently balance the overall load in the given cell

Develop a battery optimization algorithm to

maximize the collective battery lifetime of the

connected mobile nodes

Develop a Strongest signal first algorithm to provide

enhanced connection quality.


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Architecture of integrated heterogeneous network consisting of

WLAN & cellular network


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OUTLINE OF LOAD MANAGEMENTALGORITHM

Determine the signal strength of each MN.

When large numbers of MNs are connected to an

AP/BS the bandwidth gets reduced due to largetraffic.

Identify the connection points with fair amount ofsignal strength and least load.

The MNs undergo handoff process to thoseconnection points which has least load distributionand ample amount of signal strength.


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If signal strength of mobile node:(R.S.S< 10mw)

Perform handoff.

Y(i)=min{bw of MNs APi, BSi}.

if Y(i)>>threshold, establish connection.


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If signal strength of mobile node:(R.S.S


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MN

BATTERY

LIFE

S/L

STRENGTH

LOADMANAGEMENT SSF

BATTERYOPTIMIZATION

HANDOFFALGORITHM


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Finds the best connection point which providesthe highest signal quality/strength

Gathers signal strength measurements from

the various neighboring connection points Battery power used for transmission and

reception of data is relatively higher comparedto normal operations

Battery lifetime gets reduced


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Before handoff After handoffAccess Point No: of Mobile Nodes

1 12

4

3 54 25 56 27

9

8 59 2

10 2

Access Point No: of Mobile Nodes

1 62 63 64 65 66 57 98 59 510 5


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Before handoff After handoff

It can be observed that the mobile nodes requiring

handoff are efficiently distributed to all available

access points and base station in the cell and therebyproducing effective load management

Base Station No: of Mobile Nodes

1 202 17

Base Station No: of Mobile Nodes

1 202 20


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When connections are to be migrating betweenheterogeneous networks for performance andhigh-availability reasons, then seamless vertical

handoff is a necessary and an essential step.

The proposed three algorithms providesefficient management of resources to lendenhanced performances to the users

new algorithm for load management and battery life optimization

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