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This paper is a development of the previous paper. By the same author name. With a discussion of the same topology. But in this paper, the authors add the implementation of LEACH algorithm purpose to comparison algorithm.
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Found on IEEE explore website
So, Information about this paper according my understanding is
1) Author Name :
Sashigaran Sivathasan
2) Title Of Paper :
RF/FSO and LEACH Wireless Sensor Networks: A case study comparing network performance
3) Source :
Wireless And Optical Communication Network, 2009. IEEE Conference Publication
4) Summary Of Reported Research :
With the same topology ( Figure 1 ) from Previous Paper
This paper compare RF/FSO performance with RF-based LEACH ( Low Energy Adapting Clustering Hierarchy ) proposed in the literature.
First to compare that. Author using two main parameter to observed:
network lifetime and network area coverage.
From Author and references, Network Life time means "Time from when the network begins sensing and transmitting data, until time when network coverage falls to 0% of the total deployment area".
Authors means that The percentage of coverage area refers to the percentage of the network deployment area still within sensing range of the deployed sensors.
On RF LEACH session simulation, For the LEACH network, five nodes are selected to become candidate cluster heads during each round. Each round may have fewer than five cluster heads functioning, because some nodes have run out of energy.
when many sensors are dead , the base station will be increasingly isolated.And network coverage become zero in the second to 232. but in the second to 300, few nodes are still active and working very briefly and then die.
On RF/FSO session simulation, From graph show better result. Maximum Lifetime in the second to 293.
From both of graph, RF/FSO network better 26 % more longer life time with higher coverage area then RF LEACH.
RF/FSO network can survive until second to 293. While RF LEACH only second to 232.
5) Strength Of Invention:
From Result of simulation aproach, RF/FSO WSN has a longer lifetime and larger average network coverage when compared to the RF LEACH WSN.
6) Weakness :
In this paper, energy per bit of RF LEACH set in nominal 20 nJ,30 nJ up to 50 nJ. But on RF/FSO, energy per bit arround 19 pJ. Although FSO more efficient in energy, I think this is not fair to compare.
7) Limitation:
This paper discusses the parameters used to simulate both of the RF/FSO and LEACH WSNs. Simulations in this paper using MATLAB.
Two parameters were observed: network lifetime and network area coverage.
Two parameters were observed: network lifetime and network area coverage.
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