Kalpesh Popat | Gujarat Technological University (original) (raw)

Papers by Kalpesh Popat

Research paper thumbnail of Construction of L-equienergetic graphs using some graph operations

AKCE International Journal of Graphs and Combinatorics

For a graph G with n vertices and m edges, the eigenvalues of its adjacency matrix A(G) are known... more For a graph G with n vertices and m edges, the eigenvalues of its adjacency matrix A(G) are known as eigenvalues of G. The sum of absolute values of eigenvalues of G is called the energy of G. The Laplacian matrix of G is defined as LðGÞ ¼ DðGÞ À AðGÞ where D(G) is the diagonal matrix with ði, jÞ th entry is the degree of vertex v i. The collection of eigenvalues of L(G) with their multiplicities is called spectra of L(G). If l 1 , l 2 , Á Á Á , l n are the eigenvalues of L(G) then the Laplacian energy LE(G) of G is defined as LEðGÞ ¼ P n i¼1 l i À 2m n : It is always interesting and challenging as well to investigate the graphs which are L-equienergetic but L-noncopectral as L-cospectral graphs are obviously L-equienergetic. We have devised a method to construct L-equienergetic graphs which are L-noncospectral.

Research paper thumbnail of Cloud Computing Security and Biometrics

International Journal for Research in Applied Science and Engineering Technology, Jan 31, 2018

With the increased usage of cloud computing, there is a need to address the security issues also.... more With the increased usage of cloud computing, there is a need to address the security issues also. No. of techniques have been proposed and is there in use. Still there are few problems related to authentication in cloud environment. This paper throws a light on such problems and their solution with the use of Biometric techniques.

Research paper thumbnail of Dynamic Time Based Location Update Strategy in Cellular Networks

IJRASET, 2018

Managing the location information is the most important aspect in Cellular Networks. This is even... more Managing the location information is the most important aspect in Cellular Networks. This is even more important when the user is in moving condition (mobile). In today's world with the invention of latest mobile devices, the mobile device is not just a medium for communication but it is a replacement of the whole office. A person can read / write mails, do social networking, merchant transactions and a lot more through mobile devices. To handle all this tasks effective Location management in cellular communication is 100% needed. If the location of the user is not known then it will be difficult to perform call / sms / mobile data / other transactions with the cellular phone. Study of various location update strategies also covered in this paper. Algorithm for finding best location update strategy among all available strategies. Algorithm and simulation results given for Dynamic Time Based Location Update Strategy.

Research paper thumbnail of A Study of Routing Protocols for MANETs

Advances in Intelligent Systems and Computing, 2016

A Mobile Ad hoc Network (MANET) is an autonomous set of mobile nodes, which can continue communic... more A Mobile Ad hoc Network (MANET) is an autonomous set of mobile nodes, which can continue communication while moving from one place to another, without any fixed and permanent infrastructure. Every mobile node acts as a communicating node as well as forwarding node. Every node has to perform routing. Routing in wireless networks and specially in mobile networks is a tough challenge due to dynamic topologies and network partitioning problems. This paper explains routing in MANETs. This paper also surveys the unicast routing schemes to send a packet from a single source to a single destination. A conceptual comparison is given at the end of the paper to compare routing protocols.

Research paper thumbnail of Various Location Update Strategies in Mobile Computing

Ijca Proceedings on National Conference on Emerging Trends in Information and Communication Technology 2013, Mar 22, 2014

Managing location information of mobile devices is a very much important task in mobile computing... more Managing location information of mobile devices is a very much important task in mobile computing systems. In cellular network, coverage area is divided into cells. Everyday mobile companies try to accommodate more users by reducing size of cells. Location management is one of the most important and fundamental issue in mobile computing. When the user changes location, an update occurs. The main goal of any location management strategy is to provide efficient search-updates. In this paper we have discussed various location management strategies in mobile computing.

Research paper thumbnail of Importance of Paging Cost Reduction for Location Management in Mobile Computing

The term mobile means anything which is capable of moving or of being moved readily from place to... more The term mobile means anything which is capable of moving or of being moved readily from place to place. When we think about the term Mobile Computing, its location management becomes the most important aspect for us. In other words we can say that mobility is part of everyday life. A subscriber/user should be able to get the same services when he or she changes the location. This can be possible if proper location management has been adopted. In this paper we have discussed importance of location management in mobile computing as well as how to reduce paging cost in location management.

Research paper thumbnail of Various Location Update Strategies in Mobile Computing

Managing location information of mobile devices is a very much important task in mobile computing... more Managing location information of mobile devices is a very much important task in mobile computing systems. In cellular network, coverage area is divided into cells. Everyday mobile companies try to accommodate more users by reducing size of cells. Location management is one of the most important and fundamental issue in mobile computing. When the user changes location, an update occurs. The main goal of any location management strategy is to provide efficient search-updates. In this paper we have discussed various location management strategies in mobile computing.

Research paper thumbnail of Construction of L-equienergetic graphs using some graph operations

AKCE International Journal of Graphs and Combinatorics

For a graph G with n vertices and m edges, the eigenvalues of its adjacency matrix A(G) are known... more For a graph G with n vertices and m edges, the eigenvalues of its adjacency matrix A(G) are known as eigenvalues of G. The sum of absolute values of eigenvalues of G is called the energy of G. The Laplacian matrix of G is defined as LðGÞ ¼ DðGÞ À AðGÞ where D(G) is the diagonal matrix with ði, jÞ th entry is the degree of vertex v i. The collection of eigenvalues of L(G) with their multiplicities is called spectra of L(G). If l 1 , l 2 , Á Á Á , l n are the eigenvalues of L(G) then the Laplacian energy LE(G) of G is defined as LEðGÞ ¼ P n i¼1 l i À 2m n : It is always interesting and challenging as well to investigate the graphs which are L-equienergetic but L-noncopectral as L-cospectral graphs are obviously L-equienergetic. We have devised a method to construct L-equienergetic graphs which are L-noncospectral.

Research paper thumbnail of Cloud Computing Security and Biometrics

International Journal for Research in Applied Science and Engineering Technology, Jan 31, 2018

With the increased usage of cloud computing, there is a need to address the security issues also.... more With the increased usage of cloud computing, there is a need to address the security issues also. No. of techniques have been proposed and is there in use. Still there are few problems related to authentication in cloud environment. This paper throws a light on such problems and their solution with the use of Biometric techniques.

Research paper thumbnail of Dynamic Time Based Location Update Strategy in Cellular Networks

IJRASET, 2018

Managing the location information is the most important aspect in Cellular Networks. This is even... more Managing the location information is the most important aspect in Cellular Networks. This is even more important when the user is in moving condition (mobile). In today's world with the invention of latest mobile devices, the mobile device is not just a medium for communication but it is a replacement of the whole office. A person can read / write mails, do social networking, merchant transactions and a lot more through mobile devices. To handle all this tasks effective Location management in cellular communication is 100% needed. If the location of the user is not known then it will be difficult to perform call / sms / mobile data / other transactions with the cellular phone. Study of various location update strategies also covered in this paper. Algorithm for finding best location update strategy among all available strategies. Algorithm and simulation results given for Dynamic Time Based Location Update Strategy.

Research paper thumbnail of A Study of Routing Protocols for MANETs

Advances in Intelligent Systems and Computing, 2016

A Mobile Ad hoc Network (MANET) is an autonomous set of mobile nodes, which can continue communic... more A Mobile Ad hoc Network (MANET) is an autonomous set of mobile nodes, which can continue communication while moving from one place to another, without any fixed and permanent infrastructure. Every mobile node acts as a communicating node as well as forwarding node. Every node has to perform routing. Routing in wireless networks and specially in mobile networks is a tough challenge due to dynamic topologies and network partitioning problems. This paper explains routing in MANETs. This paper also surveys the unicast routing schemes to send a packet from a single source to a single destination. A conceptual comparison is given at the end of the paper to compare routing protocols.

Research paper thumbnail of Various Location Update Strategies in Mobile Computing

Ijca Proceedings on National Conference on Emerging Trends in Information and Communication Technology 2013, Mar 22, 2014

Managing location information of mobile devices is a very much important task in mobile computing... more Managing location information of mobile devices is a very much important task in mobile computing systems. In cellular network, coverage area is divided into cells. Everyday mobile companies try to accommodate more users by reducing size of cells. Location management is one of the most important and fundamental issue in mobile computing. When the user changes location, an update occurs. The main goal of any location management strategy is to provide efficient search-updates. In this paper we have discussed various location management strategies in mobile computing.

Research paper thumbnail of Importance of Paging Cost Reduction for Location Management in Mobile Computing

The term mobile means anything which is capable of moving or of being moved readily from place to... more The term mobile means anything which is capable of moving or of being moved readily from place to place. When we think about the term Mobile Computing, its location management becomes the most important aspect for us. In other words we can say that mobility is part of everyday life. A subscriber/user should be able to get the same services when he or she changes the location. This can be possible if proper location management has been adopted. In this paper we have discussed importance of location management in mobile computing as well as how to reduce paging cost in location management.

Research paper thumbnail of Various Location Update Strategies in Mobile Computing

Managing location information of mobile devices is a very much important task in mobile computing... more Managing location information of mobile devices is a very much important task in mobile computing systems. In cellular network, coverage area is divided into cells. Everyday mobile companies try to accommodate more users by reducing size of cells. Location management is one of the most important and fundamental issue in mobile computing. When the user changes location, an update occurs. The main goal of any location management strategy is to provide efficient search-updates. In this paper we have discussed various location management strategies in mobile computing.