Improvement for performance radio frequency in wireless communication based on impulse signal

Rida, Jafaar Fahad A.

doi:10.11591/ijeecs.v18.i2.pp903-916

Cited by 5 publications

(3 citation statements)

References 22 publications

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“…This can be avoided by transmitting sensor information from the hospital to the special device. Also, the lack of good planning as well as good information security leads to problems as anyone can access the hospital radios and monitor, change, destroy and manipulate information, good planning to maintain information security helps solve this problem and unauthorized communication can be prevented by using technology MAC address filtering at the access point [20]- [24].…”

Section: Introductionmentioning

confidence: 99%

Challenges of IEEE 802.11a technology and improving its performance using diversity technique

Mohammed

Awad

Abdullah

et al. 2022

IJEECS

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In this technology, <span>information can be transmitted through the air without the need for cables, wires, or other electronic connectors, using electromagnetic waves such as infrared, radio and satellite frequencies. In this research, the most important challenges and problems faced by wireless communication systems were identified and how to solve and address them. (IEEE 802.11aWLAN) was also simulated and tested using Mat lab program, where the signal generated in (IEEE 802.11aWLAN) was examined in the form of orthogonal frequency division multiplexing (OFDM) modulation by examining the performance of the bit error rate of this system using diversity technology to improve the performance of this system where we adopted the reception diversity technology, In the case of line of sight (LOS) channel and multipath channel using maximal ratio combining (MRC) method. We notice that the use of the MRC receiving diversity technique in the system reduces the bit error rate and increases the efficiency of the system and the performance improve with increase the number of receiving antenna with gain 6 dB.</span>

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Section: Introductionmentioning

confidence: 99%

Challenges of IEEE 802.11a technology and improving its performance using diversity technique

Mohammed

Awad

Abdullah

et al. 2022

IJEECS

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“…The system was able to communicate approximately 10km apart between the rover and ground station and locate three rovers simultaneously during the execution of the mission. Jafaar Fahad A. Rida [13] has proposed improving mobile wireless communication based on non-line of sight; however, for this SAR application, the ASV is operated at the water surface where there are no high rise buildings and trees at the searching area. Other wireless communications that have been used in ASV are radio frequency (RF) and global system for mobile (GSM), as discussed in [14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Autonomous surface vessel for search and rescue operation

et al. 2021

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Search and rescue operation is performed to save human life, for example during natural disasters, unfortunate incidents on the land, in the deepwater, or lakes. There were incidents happened to the search and rescue crew during the operation although they were well trained. A new method using robotic technology is important to reduce the crew's risk during operations. This research proposed a development of an autonomous surface vessel for search and rescue operations for deepwater applications. The proposed autonomous surface vessel is equipped with a global positioning system (GPS) and underwater sensor to search for the victims, black box, debris, or other evidence on the surface and underwater. The vessel was designed with monitoring and control via radio frequency wireless communication. The autonomous surface vessel prototype was developed and tested successfully with the telemetry at the ground station. The ground station acts as the control centre of the overall system. Results showed the vessel successfully operated autonomously. The operator at the ground station was able to monitor the sensor data and control the vessel's manoeuvre according to the created path. The telemetry coverage to monitor the water surroundings and control the vessel's manoeuvre was around 100 meters.

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“…QoS in a campus network is crucial to support students and staffs for mobility network connections in presented optimum teaching and learning environment. QoS performance is crucial and need regular checking for best Internet connections in any type of network thus time to time improvement for performance radio frequency in wireless communication is often designed in research [7,8]. Thus, the need  ISSN: 2302-9285 for very good wireless network becomes a priority.…”

Section: Introductionmentioning

confidence: 99%

QoS of Wi-Fi performance based on signal strength and channel for indoor campus network

et al. 2020

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The implementation of Wi-Fi on campuses brings huge benefits for campus users in communications and education development. Some campuses face existing poor Quality of Service (QoS) on the Wi-Fi performance which is also unjustified and issues on unsatisfied connections. This research aims to analyses the Wi-Fi performance of the campus network for three indoor access points. Signal strength, usage percentage, channel utilization, and the number of clients count per access points are measured. Results show that 56% is the highest signal percentage and the lowest signal percentage is at 1%. Access point of Ustudent is the highest at 53% and lowest at 38%. The highest signal strength of -45dBm is found and the other two are below by -2 dBm. The lowest signal strength is at -95 dBm. SSID CCNA_1 is identified has the best signal strength compared to other SSIDs because it runs on 5 GHz frequency. The most channels used are channels 1, 4, and 6. Respectively 151, 67, and 57 users are connected to Ustudent, UHotspot, and CCNA_1. This study is significant for the QoS in a campus network in providing good network services. Thus, the QoS on Wi-Fi performance is improvised, monitored and analyzed for continues supports users in the campus network successfully

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Improvement for performance radio frequency in wireless communication based on impulse signal

Cited by 5 publications

References 22 publications

Challenges of IEEE 802.11a technology and improving its performance using diversity technique

Challenges of IEEE 802.11a technology and improving its performance using diversity technique

Autonomous surface vessel for search and rescue operation

QoS of Wi-Fi performance based on signal strength and channel for indoor campus network

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