Analysis of TCP-Based Wireless Networks in an Uncertain Channel Using PID Control Techniques | Chapter 12 | Science and Technology: Recent Updates and Future Prospects Vol. 11

With recent improvements, emergence and service dependency of smart communication devices, there has been increasing demand for better quality of service (QoS) provisioning and experience (QoE) implementation at low operational cost. Wireless networks experience some uncertainties which results from the unpredictable nature of wireless signals, interferences and signal propagation, leading to overall degradation of the entire system. The results lead to packet loss, fading, delays, reduced throughput and low latency. This paper is aimed at using PID Control Techniques to track network uncertainties in a TCP-based network and at the same time cancels it to enhance the overall system performances. System performance measurement and analysis of the TCP- based network was performed with a link capacity of 3750, 4200 and 4500 packet/seconds respectively in three scenarios. The results showed that the PID control technique recorded a sensitivity value of 0.0329dB, 0.0345dB and 0.0821dB. (all are less than 1dB), this means that it achieved good sensitivity level to network disturbance for faster disturbance rejection capability and reduced sensitivity. The results also shows improved delay reduction, reduced throughput, low latency, packet loss and mitigate fading issues. The PID control technique was recommended for wireless network improvement to attain enhanced performance, stability and good QoS.

Author(s) Details

 

Philip-Kpae F. O.

Department of Electrical Engineering, Faculty of Engineering, Rivers State University, P.M.B. 5080, Nkpolu-Oroworukwo, Port-Harcourt, Nigeria.

Bakare B. I.

Department of Electrical Engineering, Faculty of Engineering, Rivers State University, P.M.B. 5080, Nkpolu-Oroworukwo, Port-Harcourt, Nigeria.

Gobo I. W.

Department of Electrical Engineering, Faculty of Engineering, Rivers State University, P.M.B. 5080, Nkpolu-Oroworukwo, Port-Harcourt, Nigeria.

 

Please see the link:- https://doi.org/10.9734/bpi/strufp/v11/1486

Improving Performance of TCP in MANET's Employing Smart Acknowledgement Distributed Channel Access (SADCA) Scheme | Chapter 6 | Science and Technology - Recent Updates and Future Prospects Vol. 7

The proposed Cross-Layer-based TCP Protocol and Smart Acknowledgment Distributed Channel Access (SADCA) offer significant improvements in managing congestion and boosting TCP efficiency in Mobile Ad-Hoc Networks (MANETs). By minimizing packet transmission delays and streamlining acknowledgment processes, this approach enhances overall network performance. These advancements are particularly beneficial for the scientific community, as they ensure more reliable and faster data transmission in wireless networks. This is crucial for applications like real-time data collection, remote sensing, and collaborative research projects. The working of TCP on Wireless Networks is the most difficult issue, as a result of arbitrary misfortunes and ACK impedance. TCP likewise experiences execution declination as far as making postponement and overhead in the system due to the poor attributes of the Wireless channel. Keeping in mind the end goal is to beat these issues and to enhance the performance of TCP in MANETs. The Congestion Control in Multi-Hop Mobile Ad-Hoc Networks Using a Cross-Layer Based TCP Protocol Approach, the mechanism triggers congestion whenever the Channel Occupied Ratio (COR) reaches a maximum threshold value and the received signal strength is less than a minimum threshold value. Following it, the congestion control scheme controls the data-sending rate of the sender by determining the available bandwidth, delay of its link and COR. Further, a fair resource allocation scheme is put forward. A proposed Smart Acknowledgment Distributed Channel Access (SADCA) uses a new Access Category (AC) and assigns the greatest priority to data-less TCP acknowledgement packets before relegating them. In this way, there can be a reduction in the delay between packet transmission and instantaneous confirmation of the packet. The delay window size can also be balanced with the aim of improving TCP performance by taking into account several parameters, such as transmission rate, number of jumps, and Channel Occupied Ratio (COR).  Thus, the proposed plan helps in staying away from any sort of postponement and overhead to send the TCP acknowledgements. The delay during the transmission of the packet is decreased and the packet is recognized instantly. To expand the performance, the delay window size can be balanced for improvement purposes by considering the parameters, for example, transmission rate, number of jumps, and COR. The proposed scheme improves delay and overhead to send TCP acknowledgement. Further, to expand the performance, the delay window size can be balanced for improvement purposes by considering the parameters, for example, transmission rate, number of jumps, and COR. Thus, the proposed scheme improves the delay and overhead  of sending TCP acknowledgement.

 

Author(s) Details

K. Praveen Kumar Rao
Department of Computer Science and Engineering, Veltech Dr. RR and Dr. SR University, Avadi, Chennai – 600062, Tamil Nadu, India.

T. Senthil Murugan
Department of Computer Science and Engineering, Veltech Dr. RR and Dr. SR University, Avadi, Chennai – 600062, Tamil Nadu, India.

 

Please see the link:- https://doi.org/10.9734/bpi/strufp/v7/967