Papers by International Journal of Next-Generation Networks (IJNGN)
Convergent service environments are required to deal with current tendency to heterogeneity in ne... more Convergent service environments are required to deal with current tendency to heterogeneity in network contents and its inherent incorporation of more types of devices demanding services from multiple domains. Efficient management architectures are required to tackle issues regarding: media content, subscriber reachability and subscriptions information coming from different types of networks in order to enable well organized communications among different environments such as: IMS, IPTv and subscribers management repositories. This paper describes the work of Eureka Mobicome project on the definition of an architecture to manage and provide services among distinct service delivery platforms (IPTV and ENUM) using IMS as a common core and proposes a compound modular architecture to set the basis for Future Internet converging service provision. The proposed architecture has been validated by the Interconnection of different prototypes deployed at Madrid (Spain) and Oslo (Norway).
AIRCC, 2011
This paper concerns about the radio propagation models used for the upcoming 4 th Generation (4G)... more This paper concerns about the radio propagation models used for the upcoming 4 th Generation (4G) of cellular networks known as Long Term Evolution (LTE). The radio wave propagation model or path loss model plays a very significant role in planning of any wireless communication systems. In this paper, a comparison is made between different proposed radio propagation models that would be used for LTE, like Stanford University Interim (SUI) model, Okumura model, Hata COST 231 model, COST Walfisch-Ikegami & Ericsson 9999 model. The comparison is made using different terrains e.g. urban, suburban and rural area.SUI model shows the lowest path lost in all the terrains while COST 231 Hata model illustrates highest path loss in urban area and COST Walfisch-Ikegami model has highest path loss for suburban and rural environments.
International Journal of Next-Generation Networks (IJNGN) , 2011
In grid computing, trust has massive significance. There is lot of research to propose various mo... more In grid computing, trust has massive significance. There is lot of research to propose various models in providing trusted resource sharing mechanisms. The trust is a belief or perception that various researchers have tried to correlate with some computational model. Trust on any entity can be direct or indirect. Direct trust is the impact of either first impression over the entity or acquired during some direct interaction. Indirect trust is the trust may be due to either reputation gained or recommendations received from various recommenders of a particular domain in a grid or any other domain outside that grid or outside that grid itself. Unfortunately, malicious indirect trust leads to the misuse of valuable resources of the grid. This paper proposes the mechanism of identifying and purging the untrustworthy recommendations in the grid environment. Through the obtained results, we show the way of purging of untrustworthy entities.
AIRCC, 2011
Cognitive radio (CR) is a new paradigm that utilizes the available spectrum band. The key charact... more Cognitive radio (CR) is a new paradigm that utilizes the available spectrum band. The key characteristic of CR system is to sense the electromagnetic environment to adapt their operation and dynamically vary its radio operating parameters. The technique of dynamically accessing the unused spectrum band is known as Dynamic Spectrum Access (DSA). The dynamic spectrum access technology helps to minimize unused spectrum bands. In this paper, main functions of Cognitive Radio (CR) i.e. spectrum sensing, spectrum management, spectrum mobility and spectrum sharing are discussed. Then DSA models are discussed along with different methods of DSA such as Command and Control, Exclusive-Use, Shared Use of Primary Licensed User and Commons method. Game-theoretic approach using Bertrand game model, Markovian Queuing Model for spectrum allocation in centralized architecture and Fuzzy logic based method are also discussed and result are shown.
Location awareness among the participating nodes is one of the crucial requirements in designing ... more Location awareness among the participating nodes is one of the crucial requirements in designing of solutions for various issues related to Wireless Sensor Networks (WSNs). This paper discusses about a range free localization mechanism for WSN that operate in a three dimensional space. in this scheme, the sensor network is supposed to be comprised of mobile and static sensor nodes. Mobile sensor nodes are assumed to be equipped with GPS enabled devices and are expected to be aware of their position at any instance. These mobile nodes move in the network space and periodically broadcast beacon messages about their location. Static sensor nodes receive these messages as soon as they enter the communication range of any mobile node. On receiving such messages the static nodes calculate their individual position based on the equation of sphere. The proposed scheme gains in terms of computational and memory overhead as compared to existing approaches. The proposed scheme is simulated using Sinalgo, and the performance of this is compared with the chord selection approach. The simulation results validate the gain in localization time, its accuracy, and the resulted overhead.
This paper proposes a new scalable service-oriented architecture based on Open Service Gateway In... more This paper proposes a new scalable service-oriented architecture based on Open Service Gateway Initiative (OSGI) technology. A key part of this architecture is its SIP application as a service (SIP-AS). It relies on IMS core network supported by multi agents components implemented using Java Agent DEvelopment (JADE) platform. As a proof of concept, a real testbed/prototype has been developed to validate our approach. The validation process consisted of two phases: (i) configuration of the JADE/OSGi SIP-AS architecture to provide a televoting service and (ii) characterization and analysis of jitter, packet loss, load capacity and CPU utilization of the implemented architecture. Results demonstrate that this televoting service scales up and out enabling the elasticity of the architecture on the processing of concurrent calls and dynamic load balancing.
This paper is a study of non-linear effects of RF Amplifiers on Communication Systems Performance... more This paper is a study of non-linear effects of RF Amplifiers on Communication Systems Performance. High speed data communication is made possible by Multilevel Modulation schemes. This paper presents a study of these non linear effects on multilevel Modulation schemes like MPSK and MQAM. We make use of Bit Error Ratio (BER) as performance measure. BER vs SNR (Signal-to-Noise Ratio) curves provide comparison between the non linear effects caused by Gain Compression in particular.
International Journal of Next-Generation Networks (IJNGN), 2010
This Search engine became omnipresent means for ingoing to the web. Spamming Search engine is the... more This Search engine became omnipresent means for ingoing to the web. Spamming Search engine is the technique to deceiving the ranking in search engine and it inflates the ranking. Web spammers have taken advantage of the vulnerability of link based ranking algorithms by creating many artificial references or links in order to acquire higher-than-deserved ranking n search engines' results. Link based algorithms such as PageRank, HITS utilizes the structural details of the hyperlinks for ranking the content in the web. In this paper an algorithm DBSpamClust is proposed for link spam detection. As showing through experiments such a method can filter out web spam effectively.
3G, processor of 2G services, is a family of standards for mobile telecommunications defined by t... more 3G, processor of 2G services, is a family of standards for mobile telecommunications defined by the International Telecommunication Union [1]. 3G services include wide-area wireless voice telephone, video calls, and wireless data, all in a mobile environment. It allows simultaneous use of speech and data services and higher data rates.3G is defined to facilitate growth, increased bandwidth and support more diverse applications. The focus of this study is to examine the factors affecting the adoption of 3G services among Indian people. The study adopts the revised Technology Acceptance Model by adding five antecedents-perceived risks, cost of adoption, perceived service quality, subjective norms, and perceived
lack of knowledge. Data have collected from more than 400 school/college/Institution students & employees of various Government/Private sectors using interviews & various convenience sampling procedures and analyzed using MS excel and MATLAB. Result shows that perceived usefulness has the
most significant influence on attitude towards using 3G services, which is consistent with prior studies.Of the five antecedents, perceived risk and cost of adoption are found to be significantly influencing attitude towards use. The outcome of this study would be beneficial to private and public
telecommunication organizations, various service providers, business community, banking services and people of India. Research findings and suggestions for future research are also discussed.
Asterisk and Open IMS use SIP signal protocol to enable both of them can be connected. To facilit... more Asterisk and Open IMS use SIP signal protocol to enable both of them can be connected. To facilitate both relationships, Enum server- that is able to translate the numbering address such as PSTN (E.164) to URI address (Uniform Resource Identifier)- can be used. In this research, we interconnect
Open IMS and Asterisk server Enum server. We then analyze the server performance and PDD (Post Dial Delay) values resulted by the system.
As the result of the experiment, we found that, for a call from Open IMS user to analog Asterisk telephone (FXS) with a arrival call each servers is 30 call/sec, the maximum PDD value is 493.656 ms.Open IMS is able to serve maximum 30 call/s with computer processor 1.55 GHz, while the Asterisk with
computer processor 3.0 GHz, may serve up to 55 call/sec. Enum on server with 1.15 GHz computer processor have the capability of serving maximum of 8156 queries/sec.
This algorithm describes technique to generate and manage unique integer indexes from a specified... more This algorithm describes technique to generate and manage unique integer indexes from a specified range of integers.
Generated index can be used in any application where a unique integer from a specified range need to be served as key to a
particular record and when record is freed index need to be reused. Efficiency of this algorithm lies in its simplicity and
capability to manage large range of index in minimal recourses, such as running time and memory requirement.
This Algorithm is best suited for problems where 0 or 1-based unique indexes (however non 0 or 1 based indexes can also be
managed with calculating a fix offset) are required to be managed with frequent operation like checking whether a index is free
or not, finding first free index, reserving and freeing indexes with optimal memory usage in average case. One of the
application but not limited to, is index generation for MIB tables where a unique index need to be used with a conceptual row
for creation/retrieval/destroy operations.
n order to tackle the growing no of casualties on highways due to the untimely response of emerge... more n order to tackle the growing no of casualties on highways due to the untimely response of emergency services on the spot a concept of multi-sensor based real time system is made. The main aim of this project is the interaction between vehicles, quick response to the emergency services on highways.. In this wireless traffic signaling system vehicle-vehicle communication will be provided by a proposed digital system known as TCOMMUNICATOR. The communication between vehicles is acknowledgment based
communication. The .TCommunicator is used for guiding the way to the driver at each step of the highway about the spot (ex:prediction of speed limit, Railway crossing, U turn etc) beforehand nearly 120 meters before the spot.. This communication will be most useful at night times and at dangerous spots over highways. With the help of automatic control Robot/person to control all the primary and secondary controllers. These Tcommunicator is so economical for drivers so everyone can use for their vehicles.
This paper proposes a new scalable service-oriented architecture based on Open Service Gateway
I... more This paper proposes a new scalable service-oriented architecture based on Open Service Gateway
Initiative (OSGI) technology. A key part of this architecture is its SIP application as a service (SIP-AS). It
relies on IMS core network supported by multi agents components implemented using Java Agent
DEvelopment (JADE) platform. As a proof of concept, a real testbed/prototype has been developed to
validate our approach. The validation process consisted of two phases: (i) configuration of the JADE/OSGi
SIP-AS architecture to provide a televoting service and (ii) characterization and analysis of jitter, packet
loss, load capacity and CPU utilization of the implemented architecture. Results demonstrate that this
televoting service scales up and out enabling the elasticity of the architecture on the processing of
concurrent calls and dynamic load balancing.
Conference Presentation by International Journal of Next-Generation Networks (IJNGN)
Uploads
Papers by International Journal of Next-Generation Networks (IJNGN)
lack of knowledge. Data have collected from more than 400 school/college/Institution students & employees of various Government/Private sectors using interviews & various convenience sampling procedures and analyzed using MS excel and MATLAB. Result shows that perceived usefulness has the
most significant influence on attitude towards using 3G services, which is consistent with prior studies.Of the five antecedents, perceived risk and cost of adoption are found to be significantly influencing attitude towards use. The outcome of this study would be beneficial to private and public
telecommunication organizations, various service providers, business community, banking services and people of India. Research findings and suggestions for future research are also discussed.
Open IMS and Asterisk server Enum server. We then analyze the server performance and PDD (Post Dial Delay) values resulted by the system.
As the result of the experiment, we found that, for a call from Open IMS user to analog Asterisk telephone (FXS) with a arrival call each servers is 30 call/sec, the maximum PDD value is 493.656 ms.Open IMS is able to serve maximum 30 call/s with computer processor 1.55 GHz, while the Asterisk with
computer processor 3.0 GHz, may serve up to 55 call/sec. Enum on server with 1.15 GHz computer processor have the capability of serving maximum of 8156 queries/sec.
Generated index can be used in any application where a unique integer from a specified range need to be served as key to a
particular record and when record is freed index need to be reused. Efficiency of this algorithm lies in its simplicity and
capability to manage large range of index in minimal recourses, such as running time and memory requirement.
This Algorithm is best suited for problems where 0 or 1-based unique indexes (however non 0 or 1 based indexes can also be
managed with calculating a fix offset) are required to be managed with frequent operation like checking whether a index is free
or not, finding first free index, reserving and freeing indexes with optimal memory usage in average case. One of the
application but not limited to, is index generation for MIB tables where a unique index need to be used with a conceptual row
for creation/retrieval/destroy operations.
communication. The .TCommunicator is used for guiding the way to the driver at each step of the highway about the spot (ex:prediction of speed limit, Railway crossing, U turn etc) beforehand nearly 120 meters before the spot.. This communication will be most useful at night times and at dangerous spots over highways. With the help of automatic control Robot/person to control all the primary and secondary controllers. These Tcommunicator is so economical for drivers so everyone can use for their vehicles.
Initiative (OSGI) technology. A key part of this architecture is its SIP application as a service (SIP-AS). It
relies on IMS core network supported by multi agents components implemented using Java Agent
DEvelopment (JADE) platform. As a proof of concept, a real testbed/prototype has been developed to
validate our approach. The validation process consisted of two phases: (i) configuration of the JADE/OSGi
SIP-AS architecture to provide a televoting service and (ii) characterization and analysis of jitter, packet
loss, load capacity and CPU utilization of the implemented architecture. Results demonstrate that this
televoting service scales up and out enabling the elasticity of the architecture on the processing of
concurrent calls and dynamic load balancing.
Conference Presentation by International Journal of Next-Generation Networks (IJNGN)
lack of knowledge. Data have collected from more than 400 school/college/Institution students & employees of various Government/Private sectors using interviews & various convenience sampling procedures and analyzed using MS excel and MATLAB. Result shows that perceived usefulness has the
most significant influence on attitude towards using 3G services, which is consistent with prior studies.Of the five antecedents, perceived risk and cost of adoption are found to be significantly influencing attitude towards use. The outcome of this study would be beneficial to private and public
telecommunication organizations, various service providers, business community, banking services and people of India. Research findings and suggestions for future research are also discussed.
Open IMS and Asterisk server Enum server. We then analyze the server performance and PDD (Post Dial Delay) values resulted by the system.
As the result of the experiment, we found that, for a call from Open IMS user to analog Asterisk telephone (FXS) with a arrival call each servers is 30 call/sec, the maximum PDD value is 493.656 ms.Open IMS is able to serve maximum 30 call/s with computer processor 1.55 GHz, while the Asterisk with
computer processor 3.0 GHz, may serve up to 55 call/sec. Enum on server with 1.15 GHz computer processor have the capability of serving maximum of 8156 queries/sec.
Generated index can be used in any application where a unique integer from a specified range need to be served as key to a
particular record and when record is freed index need to be reused. Efficiency of this algorithm lies in its simplicity and
capability to manage large range of index in minimal recourses, such as running time and memory requirement.
This Algorithm is best suited for problems where 0 or 1-based unique indexes (however non 0 or 1 based indexes can also be
managed with calculating a fix offset) are required to be managed with frequent operation like checking whether a index is free
or not, finding first free index, reserving and freeing indexes with optimal memory usage in average case. One of the
application but not limited to, is index generation for MIB tables where a unique index need to be used with a conceptual row
for creation/retrieval/destroy operations.
communication. The .TCommunicator is used for guiding the way to the driver at each step of the highway about the spot (ex:prediction of speed limit, Railway crossing, U turn etc) beforehand nearly 120 meters before the spot.. This communication will be most useful at night times and at dangerous spots over highways. With the help of automatic control Robot/person to control all the primary and secondary controllers. These Tcommunicator is so economical for drivers so everyone can use for their vehicles.
Initiative (OSGI) technology. A key part of this architecture is its SIP application as a service (SIP-AS). It
relies on IMS core network supported by multi agents components implemented using Java Agent
DEvelopment (JADE) platform. As a proof of concept, a real testbed/prototype has been developed to
validate our approach. The validation process consisted of two phases: (i) configuration of the JADE/OSGi
SIP-AS architecture to provide a televoting service and (ii) characterization and analysis of jitter, packet
loss, load capacity and CPU utilization of the implemented architecture. Results demonstrate that this
televoting service scales up and out enabling the elasticity of the architecture on the processing of
concurrent calls and dynamic load balancing.