Md. Abubakar Siddik | Hajee Mohammad Danesh Science & Technolgy University, Bangladesh (original) (raw)
Uploads
Papers by Md. Abubakar Siddik
Cornell University - arXiv, Aug 28, 2022
Unmanned Aerial Vehicle (UAV) has extreme potential to change the future wireless sensor network ... more Unmanned Aerial Vehicle (UAV) has extreme potential to change the future wireless sensor network (WSN). The most efficient, high-performance, urgent and fastest data collection are achieved in WSN through the UAV because UAV provides an energy-efficient short-range communication with good connectivity. However, UAV-based WSN performances is influenced by different system parameters. To investigate this issue, it is necessary to analyses the effects of system parameters on the UAV-based WSN performance. In this paper, we design a NS-3 script for UAV-based WSN according to the hierarchical manner of TCP/IP model. We configure all layers by using NS-3 model objects and set and modify the values used by objects to investigate the effects of system parameters (access mechanism, UAV trajectory pattern, UAV velocity, number of sensors, and sensor traffic generation rate) on throughput, and average delay. The simulation results show that the RTS/CTS access mechanism provides better performance than the basic data access mechanism and the mobility model which has been prescribed shows higher performance than the random mobility model. Moreover, the results indicate that higher velocity of UAV degrades the system performance in terms of throughput and delay. Our design procedure represents a good guideline for new NS-3 users to design and modify script and results greatly benefit the network design and management.
International Journal of Wireless & Mobile Networks
The recently released IEEE 802.15.6 standard specifies several physical (PHY) layers and medium a... more The recently released IEEE 802.15.6 standard specifies several physical (PHY) layers and medium access control (MAC) layer protocols for variety of medical and non-medical applications of Wireless Body Area Networks (WBAN). The medical applications of WBAN has several obligatory requirements and constrains viz. high reliability, strict delay deadlines and low power consumption. The standard IEEE 802.15.6 MAC scheme is not able to fulfil the all requirements of medical applications of WBAN. To address this issue we propose an IEEE 802.15.6-based MAC scheme that is the modification of superframe structure, user priorities and access mechanism of standard IEEE 802.15.6 MAC scheme. The proposed superframe has three access phases: random access phases (RAP), manage access phases (MAP) and contention access phase (CAP). The proposed four user priorities nodes access the channel during RAP using CAMA/CA mechanism with a large value of contention window. The proposed MAC scheme uses RTS/CTS...
2019 1st International Conference on Advances in Science, Engineering and Robotics Technology (ICASERT), 2019
The ongoing relentless innovation of technologies like Big data, cloud computing, virtual reality... more The ongoing relentless innovation of technologies like Big data, cloud computing, virtual reality is creating the need for more secure, further reliable, more scalable ultra fast networks. For meeting these objectives Software Defined Networking (SDN) arises. Distinguished control plane and data plane have made SDN more dependable, fast, secure and increased its widespread acceptance. The crucial part of such a network is the controller which handles the flow control and makes the network more effective. So, for ensuring better performance of the network, selection of the right controller according to the need is imperative. Thus performance evaluation of available SDN controllers is a high-priority. Though there are many researches pursued on the performance analysis of SDN controllers in terms of wired network, there is a lack of studies involving controller efficiency in wireless network. In this paper we have examined the performance of some popular SDN controllers like Ryu, POX, ONOS and Floodlight in an emulated wireless network. Analysing the test results we have asserted our observation regarding the controller performance which can be of considerable importance while determining the right SDN controller for wireless network.
International Journal of Advanced Research, 2019
2016 9th International Conference on Electrical and Computer Engineering (ICECE), 2016
Vehicular ad hoc network (VANET) is an important component of intelligent transports system (ITS)... more Vehicular ad hoc network (VANET) is an important component of intelligent transports system (ITS) that facilitates variety of safety and non-safety applications. It has some unique characteristics, such as high geographically dynamic topology, predictable two direction mobility, varying vehicle density etc. Medium access control (MAC) protocol plays a vital role to share the common wireless channel efficiently among the vehicles in VANET. However, ensuring fairness is a challenging issue to design MAC protocols of VANET. Due to small residence time, existing IEEE 802.11 DCF protocol provides less opportunity for the vehicles with high velocity to communicate with road side unit (RSU), consequently allowing less amount of data be transferred compared to the vehicles low velocity. Existing MAC protocols take into account only velocities and can not ensure the data transmission rate to be proportional to residence time while providing minimum amount of data transmission for all vehicles irrespective of velocity. Therefore, an efficient MAC protocol, which takes position, direction and velocity of vehicles into consideration for ensuring minimum opportunity for all the vehicles, is yet to be proposed. In this research work, an efficient MAC protocol based on IEEE 802.11 DCF is developed which minimizes the unfairness problem of VANET. Unfairness problem has two aspects: higher velocity vehicles cannot transmit a minimum number of packets and lower velocity vehicles cannot transmit above a maximum number of packets. To address the above mentioned issues, the proposed MAC protocol adjusts the transmission probability for each vehicle according to its residence time by changing the value of MAC parameters (minimum contention window size, maximum backoff stage, retransmission limit, etc) dynamically. An analytical model is developed to analyze the performance of the proposed protocol. Analytical results show that the proposed scheme overcomes the limitations of existing MAC protocols by ensuring that packet transmission rate remains proportional to the residence time of the vehicles.
International Journal of Wireless & Mobile Networks, 2021
This paper presents the design procedure of the NS-3 script for WLAN that is organized according ... more This paper presents the design procedure of the NS-3 script for WLAN that is organized according to the hierarchical manner of TCP/IP model. We configure all layers by using NS-3 model objects and set and modify the values used by objects to investigate the effects of MAC parameters (access mechanism, CWmin, CWmax and retry limit) on the performance metrics viz. packet delivery ratio, packet lost ratio, aggregated throughput, and average delay. The simulation results show that RTS/CTS access mechanism outperforms basic access mechanism in saturated state, whereas the MAC parameters have no significant impact on network performance in non-saturated state. A higher value of CWmin improves the aggregated throughput in expense of average delay. The tradeoff relationships among the performance metrics are also observed in results for the optimal values of MAC parameters. Our design procedure represents a good guideline for new NS-3 users to design and modify script and results greatly be...
Sensors
Highly dynamic geographical topology, two-direction mobility, and varying traffic density can lea... more Highly dynamic geographical topology, two-direction mobility, and varying traffic density can lead to fairness issues in Vehicular Ad-hoc Networks (VANETs). The Medium Access Control (MAC) protocol plays a vital role in sharing the common wireless channel efficiently between vehicles in a VANET system. However, ensuring fairness between vehicles can be a challenge in designing MAC protocols for VANET systems. The existing protocol, IEEE 802.11 DCF, ensures that the packet transmission rate for a particular vehicle is directly proportional to the amount of time a vehicle spends within a service area, but it does not guarantee that faster vehicles will be able to send the minimum number of packets. Other existing MAC protocols based on IEEE 802.11 are able to provide a minimum amount of data transmission regardless of velocity, but are unable to provide an amount of data transmission that is more proportionate to the time a vehicle spends in the service area. To address the above limi...
2016 9th International Conference on Electrical and Computer Engineering (ICECE), 2016
Cornell University - arXiv, Aug 28, 2022
Unmanned Aerial Vehicle (UAV) has extreme potential to change the future wireless sensor network ... more Unmanned Aerial Vehicle (UAV) has extreme potential to change the future wireless sensor network (WSN). The most efficient, high-performance, urgent and fastest data collection are achieved in WSN through the UAV because UAV provides an energy-efficient short-range communication with good connectivity. However, UAV-based WSN performances is influenced by different system parameters. To investigate this issue, it is necessary to analyses the effects of system parameters on the UAV-based WSN performance. In this paper, we design a NS-3 script for UAV-based WSN according to the hierarchical manner of TCP/IP model. We configure all layers by using NS-3 model objects and set and modify the values used by objects to investigate the effects of system parameters (access mechanism, UAV trajectory pattern, UAV velocity, number of sensors, and sensor traffic generation rate) on throughput, and average delay. The simulation results show that the RTS/CTS access mechanism provides better performance than the basic data access mechanism and the mobility model which has been prescribed shows higher performance than the random mobility model. Moreover, the results indicate that higher velocity of UAV degrades the system performance in terms of throughput and delay. Our design procedure represents a good guideline for new NS-3 users to design and modify script and results greatly benefit the network design and management.
International Journal of Wireless & Mobile Networks
The recently released IEEE 802.15.6 standard specifies several physical (PHY) layers and medium a... more The recently released IEEE 802.15.6 standard specifies several physical (PHY) layers and medium access control (MAC) layer protocols for variety of medical and non-medical applications of Wireless Body Area Networks (WBAN). The medical applications of WBAN has several obligatory requirements and constrains viz. high reliability, strict delay deadlines and low power consumption. The standard IEEE 802.15.6 MAC scheme is not able to fulfil the all requirements of medical applications of WBAN. To address this issue we propose an IEEE 802.15.6-based MAC scheme that is the modification of superframe structure, user priorities and access mechanism of standard IEEE 802.15.6 MAC scheme. The proposed superframe has three access phases: random access phases (RAP), manage access phases (MAP) and contention access phase (CAP). The proposed four user priorities nodes access the channel during RAP using CAMA/CA mechanism with a large value of contention window. The proposed MAC scheme uses RTS/CTS...
2019 1st International Conference on Advances in Science, Engineering and Robotics Technology (ICASERT), 2019
The ongoing relentless innovation of technologies like Big data, cloud computing, virtual reality... more The ongoing relentless innovation of technologies like Big data, cloud computing, virtual reality is creating the need for more secure, further reliable, more scalable ultra fast networks. For meeting these objectives Software Defined Networking (SDN) arises. Distinguished control plane and data plane have made SDN more dependable, fast, secure and increased its widespread acceptance. The crucial part of such a network is the controller which handles the flow control and makes the network more effective. So, for ensuring better performance of the network, selection of the right controller according to the need is imperative. Thus performance evaluation of available SDN controllers is a high-priority. Though there are many researches pursued on the performance analysis of SDN controllers in terms of wired network, there is a lack of studies involving controller efficiency in wireless network. In this paper we have examined the performance of some popular SDN controllers like Ryu, POX, ONOS and Floodlight in an emulated wireless network. Analysing the test results we have asserted our observation regarding the controller performance which can be of considerable importance while determining the right SDN controller for wireless network.
International Journal of Advanced Research, 2019
2016 9th International Conference on Electrical and Computer Engineering (ICECE), 2016
Vehicular ad hoc network (VANET) is an important component of intelligent transports system (ITS)... more Vehicular ad hoc network (VANET) is an important component of intelligent transports system (ITS) that facilitates variety of safety and non-safety applications. It has some unique characteristics, such as high geographically dynamic topology, predictable two direction mobility, varying vehicle density etc. Medium access control (MAC) protocol plays a vital role to share the common wireless channel efficiently among the vehicles in VANET. However, ensuring fairness is a challenging issue to design MAC protocols of VANET. Due to small residence time, existing IEEE 802.11 DCF protocol provides less opportunity for the vehicles with high velocity to communicate with road side unit (RSU), consequently allowing less amount of data be transferred compared to the vehicles low velocity. Existing MAC protocols take into account only velocities and can not ensure the data transmission rate to be proportional to residence time while providing minimum amount of data transmission for all vehicles irrespective of velocity. Therefore, an efficient MAC protocol, which takes position, direction and velocity of vehicles into consideration for ensuring minimum opportunity for all the vehicles, is yet to be proposed. In this research work, an efficient MAC protocol based on IEEE 802.11 DCF is developed which minimizes the unfairness problem of VANET. Unfairness problem has two aspects: higher velocity vehicles cannot transmit a minimum number of packets and lower velocity vehicles cannot transmit above a maximum number of packets. To address the above mentioned issues, the proposed MAC protocol adjusts the transmission probability for each vehicle according to its residence time by changing the value of MAC parameters (minimum contention window size, maximum backoff stage, retransmission limit, etc) dynamically. An analytical model is developed to analyze the performance of the proposed protocol. Analytical results show that the proposed scheme overcomes the limitations of existing MAC protocols by ensuring that packet transmission rate remains proportional to the residence time of the vehicles.
International Journal of Wireless & Mobile Networks, 2021
This paper presents the design procedure of the NS-3 script for WLAN that is organized according ... more This paper presents the design procedure of the NS-3 script for WLAN that is organized according to the hierarchical manner of TCP/IP model. We configure all layers by using NS-3 model objects and set and modify the values used by objects to investigate the effects of MAC parameters (access mechanism, CWmin, CWmax and retry limit) on the performance metrics viz. packet delivery ratio, packet lost ratio, aggregated throughput, and average delay. The simulation results show that RTS/CTS access mechanism outperforms basic access mechanism in saturated state, whereas the MAC parameters have no significant impact on network performance in non-saturated state. A higher value of CWmin improves the aggregated throughput in expense of average delay. The tradeoff relationships among the performance metrics are also observed in results for the optimal values of MAC parameters. Our design procedure represents a good guideline for new NS-3 users to design and modify script and results greatly be...
Sensors
Highly dynamic geographical topology, two-direction mobility, and varying traffic density can lea... more Highly dynamic geographical topology, two-direction mobility, and varying traffic density can lead to fairness issues in Vehicular Ad-hoc Networks (VANETs). The Medium Access Control (MAC) protocol plays a vital role in sharing the common wireless channel efficiently between vehicles in a VANET system. However, ensuring fairness between vehicles can be a challenge in designing MAC protocols for VANET systems. The existing protocol, IEEE 802.11 DCF, ensures that the packet transmission rate for a particular vehicle is directly proportional to the amount of time a vehicle spends within a service area, but it does not guarantee that faster vehicles will be able to send the minimum number of packets. Other existing MAC protocols based on IEEE 802.11 are able to provide a minimum amount of data transmission regardless of velocity, but are unable to provide an amount of data transmission that is more proportionate to the time a vehicle spends in the service area. To address the above limi...
2016 9th International Conference on Electrical and Computer Engineering (ICECE), 2016