SlideShare a Scribd company logo
1 of 2
Ambit lick Solutions
Mail Id: Ambitlick@gmail.com , Ambitlicksolutions@gmail.Com
Relay Selection For Geographical Forwarding In Sleep-Wake Cycling Wireless
Sensor Networks
Our work is motivated by geographical forwarding of sporadic alarm packets to a base
station in a wireless sensor network (WSN), where the nodes are sleep-wake cycling
periodically and asynchronously. We seek to develop local forwarding algorithms that
can be tuned so as to tradeoff the end-to-end delays against a total cost, such as the hop
count or total energy. Our approach is to solve, at each forwarding node enroute to the
sink, the local forwarding problem of minimizing one-hop waiting delay subject to a
lower bound constraint on a suitable reward offered by the next-hop relay; the constraint
serves to tune the tradeoff. The reward metric used for the local problem is based on the
end-to-end total cost objective (for instance, when the total cost is hop count, we choose
to use the progress toward sink made by a relay as the reward). The forwarding node, to
begin with, is uncertain about the number of relays, their wake-up times, and the reward
values, but knows the probability distributions of these quantities. At each relay wake-up
instant, when a relay reveals its reward value, the forwarding node’s problem is to
forward the packet or to wait for further relays to wake-up. In terms of the operations
research literature, our work can be considered as a variant of the asset selling problem.
We formulate our local forwarding problem as a partially observable Markov decision
process (POMDP) and obtain inner and outer bounds for the optimal policy. Motivated
by the computational complexity involved in the policies derived out of these bounds, we
formulate an alternate simplified model, the optimal policy for which is a simple
threshold rule. We provide simulation results to compare the performance of the inner
and outer bound policies against the simple policy, and also against the optimal policy
when the source knows the exact number of relays. Observing the good performance and
the ease of implementation of the simple policy, we apply it to our motivating problem,
i.e., local geographical routing of sporadic alarm packets in a large WSN. We compare
Ambit lick Solutions
Mail Id: Ambitlick@gmail.com , Ambitlicksolutions@gmail.Com
the end-to-end performance (i.e., average total delay and average total cost) obtained by
the simple policy, when used for local geographical forwarding, against that obtained by
the globally optimal forwarding algorithm proposed by Kim et al.

More Related Content

More from ambitlick

Ambitlick ns2 2013
Ambitlick ns2 2013Ambitlick ns2 2013
Ambitlick ns2 2013
ambitlick
 
Low cost Java IEEE Projects 2013
Low cost Java IEEE Projects 2013Low cost Java IEEE Projects 2013
Low cost Java IEEE Projects 2013
ambitlick
 
Handling selfishness in replica allocation
Handling selfishness in replica allocationHandling selfishness in replica allocation
Handling selfishness in replica allocation
ambitlick
 
Mutual distance bounding protocols
Mutual distance bounding protocolsMutual distance bounding protocols
Mutual distance bounding protocols
ambitlick
 
Moderated group authoring system for campus wide workgroups
Moderated group authoring system for campus wide workgroupsModerated group authoring system for campus wide workgroups
Moderated group authoring system for campus wide workgroups
ambitlick
 
Efficient spread spectrum communication without pre shared secrets
Efficient spread spectrum communication without pre shared secretsEfficient spread spectrum communication without pre shared secrets
Efficient spread spectrum communication without pre shared secrets
ambitlick
 
Integrated institutional portal
Integrated institutional portalIntegrated institutional portal
Integrated institutional portal
ambitlick
 
Moderated group authoring system for campus wide workgroups
Moderated group authoring system for campus wide workgroupsModerated group authoring system for campus wide workgroups
Moderated group authoring system for campus wide workgroups
ambitlick
 

More from ambitlick (20)

Low cost Java 2013 IEEE projects
Low cost Java 2013 IEEE projectsLow cost Java 2013 IEEE projects
Low cost Java 2013 IEEE projects
 
Ambitlick ns2 2013
Ambitlick ns2 2013Ambitlick ns2 2013
Ambitlick ns2 2013
 
Low cost Java IEEE Projects 2013
Low cost Java IEEE Projects 2013Low cost Java IEEE Projects 2013
Low cost Java IEEE Projects 2013
 
Handling selfishness in replica allocation
Handling selfishness in replica allocationHandling selfishness in replica allocation
Handling selfishness in replica allocation
 
Mutual distance bounding protocols
Mutual distance bounding protocolsMutual distance bounding protocols
Mutual distance bounding protocols
 
Moderated group authoring system for campus wide workgroups
Moderated group authoring system for campus wide workgroupsModerated group authoring system for campus wide workgroups
Moderated group authoring system for campus wide workgroups
 
Efficient spread spectrum communication without pre shared secrets
Efficient spread spectrum communication without pre shared secretsEfficient spread spectrum communication without pre shared secrets
Efficient spread spectrum communication without pre shared secrets
 
IEEE -2012-13 Projects IN NS2
IEEE -2012-13 Projects IN NS2  IEEE -2012-13 Projects IN NS2
IEEE -2012-13 Projects IN NS2
 
Adaptive weight factor estimation from user review 1
Adaptive weight factor estimation from user   review 1Adaptive weight factor estimation from user   review 1
Adaptive weight factor estimation from user review 1
 
Integrated institutional portal
Integrated institutional portalIntegrated institutional portal
Integrated institutional portal
 
Embassy
EmbassyEmbassy
Embassy
 
Crm
Crm Crm
Crm
 
Mutual distance bounding protocols
Mutual distance bounding protocolsMutual distance bounding protocols
Mutual distance bounding protocols
 
Moderated group authoring system for campus wide workgroups
Moderated group authoring system for campus wide workgroupsModerated group authoring system for campus wide workgroups
Moderated group authoring system for campus wide workgroups
 
Efficient spread spectrum communication without pre shared secrets
Efficient spread spectrum communication without pre shared secretsEfficient spread spectrum communication without pre shared secrets
Efficient spread spectrum communication without pre shared secrets
 
Comments on “mabs multicast authentication based on batch signature”
Comments on “mabs multicast authentication based on batch signature”Comments on “mabs multicast authentication based on batch signature”
Comments on “mabs multicast authentication based on batch signature”
 
Energy-Efficient Protocol for Deterministic and Probabilistic Coverage In Sen...
Energy-Efficient Protocol for Deterministic and Probabilistic Coverage In Sen...Energy-Efficient Protocol for Deterministic and Probabilistic Coverage In Sen...
Energy-Efficient Protocol for Deterministic and Probabilistic Coverage In Sen...
 
Energy efficient protocol for deterministic
Energy efficient protocol for deterministicEnergy efficient protocol for deterministic
Energy efficient protocol for deterministic
 
Estimating Parameters of Multiple Heterogeneous Target Objects Using Composit...
Estimating Parameters of Multiple Heterogeneous Target Objects Using Composit...Estimating Parameters of Multiple Heterogeneous Target Objects Using Composit...
Estimating Parameters of Multiple Heterogeneous Target Objects Using Composit...
 
A Privacy-Preserving Location Monitoring System for Wireless Sensor Networks
A Privacy-Preserving Location Monitoring System for Wireless Sensor NetworksA Privacy-Preserving Location Monitoring System for Wireless Sensor Networks
A Privacy-Preserving Location Monitoring System for Wireless Sensor Networks
 

Recently uploaded

1029 - Danh muc Sach Giao Khoa 10 . pdf
1029 -  Danh muc Sach Giao Khoa 10 . pdf1029 -  Danh muc Sach Giao Khoa 10 . pdf
1029 - Danh muc Sach Giao Khoa 10 . pdf
QucHHunhnh
 
Russian Escort Service in Delhi 11k Hotel Foreigner Russian Call Girls in Delhi
Russian Escort Service in Delhi 11k Hotel Foreigner Russian Call Girls in DelhiRussian Escort Service in Delhi 11k Hotel Foreigner Russian Call Girls in Delhi
Russian Escort Service in Delhi 11k Hotel Foreigner Russian Call Girls in Delhi
kauryashika82
 
The basics of sentences session 2pptx copy.pptx
The basics of sentences session 2pptx copy.pptxThe basics of sentences session 2pptx copy.pptx
The basics of sentences session 2pptx copy.pptx
heathfieldcps1
 

Recently uploaded (20)

Explore beautiful and ugly buildings. Mathematics helps us create beautiful d...
Explore beautiful and ugly buildings. Mathematics helps us create beautiful d...Explore beautiful and ugly buildings. Mathematics helps us create beautiful d...
Explore beautiful and ugly buildings. Mathematics helps us create beautiful d...
 
Measures of Dispersion and Variability: Range, QD, AD and SD
Measures of Dispersion and Variability: Range, QD, AD and SDMeasures of Dispersion and Variability: Range, QD, AD and SD
Measures of Dispersion and Variability: Range, QD, AD and SD
 
INDIA QUIZ 2024 RLAC DELHI UNIVERSITY.pptx
INDIA QUIZ 2024 RLAC DELHI UNIVERSITY.pptxINDIA QUIZ 2024 RLAC DELHI UNIVERSITY.pptx
INDIA QUIZ 2024 RLAC DELHI UNIVERSITY.pptx
 
Mixin Classes in Odoo 17 How to Extend Models Using Mixin Classes
Mixin Classes in Odoo 17  How to Extend Models Using Mixin ClassesMixin Classes in Odoo 17  How to Extend Models Using Mixin Classes
Mixin Classes in Odoo 17 How to Extend Models Using Mixin Classes
 
Asian American Pacific Islander Month DDSD 2024.pptx
Asian American Pacific Islander Month DDSD 2024.pptxAsian American Pacific Islander Month DDSD 2024.pptx
Asian American Pacific Islander Month DDSD 2024.pptx
 
Holdier Curriculum Vitae (April 2024).pdf
Holdier Curriculum Vitae (April 2024).pdfHoldier Curriculum Vitae (April 2024).pdf
Holdier Curriculum Vitae (April 2024).pdf
 
PROCESS RECORDING FORMAT.docx
PROCESS      RECORDING        FORMAT.docxPROCESS      RECORDING        FORMAT.docx
PROCESS RECORDING FORMAT.docx
 
1029 - Danh muc Sach Giao Khoa 10 . pdf
1029 -  Danh muc Sach Giao Khoa 10 . pdf1029 -  Danh muc Sach Giao Khoa 10 . pdf
1029 - Danh muc Sach Giao Khoa 10 . pdf
 
Role Of Transgenic Animal In Target Validation-1.pptx
Role Of Transgenic Animal In Target Validation-1.pptxRole Of Transgenic Animal In Target Validation-1.pptx
Role Of Transgenic Animal In Target Validation-1.pptx
 
Unit-IV- Pharma. Marketing Channels.pptx
Unit-IV- Pharma. Marketing Channels.pptxUnit-IV- Pharma. Marketing Channels.pptx
Unit-IV- Pharma. Marketing Channels.pptx
 
Russian Escort Service in Delhi 11k Hotel Foreigner Russian Call Girls in Delhi
Russian Escort Service in Delhi 11k Hotel Foreigner Russian Call Girls in DelhiRussian Escort Service in Delhi 11k Hotel Foreigner Russian Call Girls in Delhi
Russian Escort Service in Delhi 11k Hotel Foreigner Russian Call Girls in Delhi
 
Z Score,T Score, Percential Rank and Box Plot Graph
Z Score,T Score, Percential Rank and Box Plot GraphZ Score,T Score, Percential Rank and Box Plot Graph
Z Score,T Score, Percential Rank and Box Plot Graph
 
2024-NATIONAL-LEARNING-CAMP-AND-OTHER.pptx
2024-NATIONAL-LEARNING-CAMP-AND-OTHER.pptx2024-NATIONAL-LEARNING-CAMP-AND-OTHER.pptx
2024-NATIONAL-LEARNING-CAMP-AND-OTHER.pptx
 
psychiatric nursing HISTORY COLLECTION .docx
psychiatric  nursing HISTORY  COLLECTION  .docxpsychiatric  nursing HISTORY  COLLECTION  .docx
psychiatric nursing HISTORY COLLECTION .docx
 
Python Notes for mca i year students osmania university.docx
Python Notes for mca i year students osmania university.docxPython Notes for mca i year students osmania university.docx
Python Notes for mca i year students osmania university.docx
 
microwave assisted reaction. General introduction
microwave assisted reaction. General introductionmicrowave assisted reaction. General introduction
microwave assisted reaction. General introduction
 
Micro-Scholarship, What it is, How can it help me.pdf
Micro-Scholarship, What it is, How can it help me.pdfMicro-Scholarship, What it is, How can it help me.pdf
Micro-Scholarship, What it is, How can it help me.pdf
 
Class 11th Physics NEET formula sheet pdf
Class 11th Physics NEET formula sheet pdfClass 11th Physics NEET formula sheet pdf
Class 11th Physics NEET formula sheet pdf
 
The basics of sentences session 2pptx copy.pptx
The basics of sentences session 2pptx copy.pptxThe basics of sentences session 2pptx copy.pptx
The basics of sentences session 2pptx copy.pptx
 
Unit-V; Pricing (Pharma Marketing Management).pptx
Unit-V; Pricing (Pharma Marketing Management).pptxUnit-V; Pricing (Pharma Marketing Management).pptx
Unit-V; Pricing (Pharma Marketing Management).pptx
 

Relay selection for geographical forwarding in sleep wake cycling wireless sensor networks

  • 1. Ambit lick Solutions Mail Id: Ambitlick@gmail.com , Ambitlicksolutions@gmail.Com Relay Selection For Geographical Forwarding In Sleep-Wake Cycling Wireless Sensor Networks Our work is motivated by geographical forwarding of sporadic alarm packets to a base station in a wireless sensor network (WSN), where the nodes are sleep-wake cycling periodically and asynchronously. We seek to develop local forwarding algorithms that can be tuned so as to tradeoff the end-to-end delays against a total cost, such as the hop count or total energy. Our approach is to solve, at each forwarding node enroute to the sink, the local forwarding problem of minimizing one-hop waiting delay subject to a lower bound constraint on a suitable reward offered by the next-hop relay; the constraint serves to tune the tradeoff. The reward metric used for the local problem is based on the end-to-end total cost objective (for instance, when the total cost is hop count, we choose to use the progress toward sink made by a relay as the reward). The forwarding node, to begin with, is uncertain about the number of relays, their wake-up times, and the reward values, but knows the probability distributions of these quantities. At each relay wake-up instant, when a relay reveals its reward value, the forwarding node’s problem is to forward the packet or to wait for further relays to wake-up. In terms of the operations research literature, our work can be considered as a variant of the asset selling problem. We formulate our local forwarding problem as a partially observable Markov decision process (POMDP) and obtain inner and outer bounds for the optimal policy. Motivated by the computational complexity involved in the policies derived out of these bounds, we formulate an alternate simplified model, the optimal policy for which is a simple threshold rule. We provide simulation results to compare the performance of the inner and outer bound policies against the simple policy, and also against the optimal policy when the source knows the exact number of relays. Observing the good performance and the ease of implementation of the simple policy, we apply it to our motivating problem, i.e., local geographical routing of sporadic alarm packets in a large WSN. We compare
  • 2. Ambit lick Solutions Mail Id: Ambitlick@gmail.com , Ambitlicksolutions@gmail.Com the end-to-end performance (i.e., average total delay and average total cost) obtained by the simple policy, when used for local geographical forwarding, against that obtained by the globally optimal forwarding algorithm proposed by Kim et al.