R Badlishah Ahmad
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Preferred name
R Badlishah Ahmad
Official Name
R Badlishah, Ahmad
Alternative Name
Ahmad, R. Badlishah
Ahmad, B.
Badlishah Ahmad, R.
Ahmad, Rashidi
Ahmad, Badlisha
Ahmed, R. Badlishah
Ahmad, R. B.
Badlishah, R.
Ahmad, R. Badli
Ahmed, Rbadlishah
Main Affiliation
Scopus Author ID
57194844651
Researcher ID
U-3211-2019

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Cryptanalysis cipher text using new modeling: Text encryption using elliptic curve cryptography

2020-01-08 , Naji M.A. , Hammood D.A. , Atee H.A. , Jebur R.S. , Hasliza A Rahim @ Samsuddin , R Badlishah Ahmad

Cryptanalysis is the investigation of cipher content, ciphers and cryptosystems with the point of seeing how they work and finding and improving procedures for crushing or debilitating. Elliptic Curve Cryptography is one of the newest fields in cryptography field. This paper has proposed a new technique where classical techniques are replaced with new technique by changing characters with affine points. This technique avoids costly mapping.

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Minimum Power Allocation Cooperative Communication based on Health-Care WBAN

2020-03-20 , Hammood D.A. , Alkhayyat A. , Hasliza A Rahim @ Samsuddin , R Badlishah Ahmad

Energy is limited resource in the Wireless Body Area Network (WBAN). Finding optimal and minimum required transmission power that can achieve a certain level of utility while utilizing as little power for transmission as possible plays an important role in reducing energy consumption. In this paper, we found the required transmission power of four transmission modes: the direct transmission mode, the dual-hop transmission mode, and two incremental cooperative transmission modes with Rayleigh channel fading.

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Mobile Green E-Waste Management Systems using IoT for Smart Campus

2021-07-26 , Khairul Najmy Abdul Rani , Hasliza A Rahim @ Samsuddin , Ong B.T. , Muzammil Jusoh , Mohd Najib Mohd Yasin , Thennarasan Sabapathy , Wan Azani Wan Mustafa , Mohd Aminudin Jamlos , R Badlishah Ahmad , Hammood D.A.

This paper presents the design and development of mobile "green"electronic waste (e-waste) management systems using Internet of Things (IoT) for smart campus. The system uses Raspberry Pi 3 Model B v1.2 microcontroller for monitoring e-waste object detection, e-waste count, and bin percentage level, respectively. TensorFlow Lite application programming interface (API) is used to run Single Shot Multibox Detector (SSD)Lite-MobileNet-v2 model trained on Microsoft Common Objects in Context (MSCOCO) dataset for e-waste object detection in image. All the monitoring data are stored and retrieved in ThingSpeak cloud platform using Hypertext Transfer Protocol (HTTP) and Message Queuing Telemetry Transport (MQTT) protocol over the Internet and displayed via interactive Android-based mobile user interface (UI). Furthermore, automatic e-mail notification will be sent to waste collector for bin collection whenever e-waste bin percentage level is greater than predetermined threshold value of 80% full.

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Reliable data transmission: An IoT health-based paradiam

2020-11-01 , Hammood D.A. , Mahmoud M.S. , Alkhayyat A. , Hasliza A Rahim @ Samsuddin , R Badlishah Ahmad

A WBAN can be spread over a person's body, so; posing, dressing, moving of muscles, degree of heat of bodies as well as weather changes in general affect connections among sensors as well as desired point. Secondly, information collected via every sensor can be connected to a person's course of life; so, it can be considered as significant to guarantee that the collected information ought to be given to desired point competently. In this work, a critical cooperating communicating protocol to WBAN established on information has been suggested, called critical Data Transmission using Transmission Mode Selection (CD-TMS) method established for the architecture of star topology. In the beginning, we performed a studying, also we established a system model can be looked at according to channel los of path, effective transmitting possibility, as well as the out of work time possibility. Thirdly, relaying selecting can be used accompanied by CD-TMS, that lets just the most successful relaying take part in cooperating in a spread manner. Simulating as well as numeral outcomes illustrate that CD-TMS has the ability to develop the performing of a network under common terms comparing with direct transmission mode (DTM) IEEE 802.15.6 CSMA as well as benchmark.

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Duty Cycle Optimization Using Game Theory Two Master Nodes Cooperative Protocol in WBAN

2022-02-01 , Hammood D.A. , Rahim H.A. , Alkhayyat A. , R Badlishah Ahmad

Wireless body area networks (WBANs) are communication networks of sensors (and/or actuators), which can be placed on, inside, or around the body and represent a new generation of personal area networks. In contrast to the typical wireless sensor networks (WSNs), WBAN sensors are tiny and have limited power supply. Due to irregular human body movement and WBAN sensor distribution, fading can cause a lot of error, which can be determined by measuring the bit error rate (BER). A higher BER requires more power. Therefore, to reduce BER, power consumption (PC) and duty cycle (DC), a game theory-two master nodes-based cooperative protocol (GT-TMNCP) is proposed in this work. DC is enhanced by a further 13% using the proposed GT-TMNCP, leading to a BER reduction 3 times greater when compared to TMNCP, and PC improved by 14%, lower than with the TMNCP, for shadowing at 5 dB, critical index data (IC), IC = 3 and 5, representing maximum critical data. The results also demonstrate that BER is reduced up to 8 times, DC is enhanced by 8%, and PC by 7% for shadowing 9 dB, IC = 7, compared to the QoS optimisation approach and TMNCP.

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Review: Optimization algorithms in Wireless Body Area Networks

2020-03-20 , Hammood D.A. , Hasliza A Rahim @ Samsuddin , Alkhayyat A. , R Badlishah Ahmad

Wireless body area network is abbreviated as WBAN. This kind has been originated after the getting of wireless sensor network developing to a certain kind of being matured. That has been likely owing to the huge advance directing to usable wireless comfortable scientific knowledge as well as electronic componential parts that can be tiny. definitely, such research has obtained important attention nowadays owing to its practical uses which mainly can be in the direction of the sector of health care. Nowadays, a small sensor can be put on the body of humans for recording different mental parameters and this sensor is able to send collected information towards another device in order to get more important behaviours taken. Thus, that is utilized to diagnose illnesses as well as improving dangerous problems alert systems in health field. In this paper, various wireless body area network protocols and algorithms are viewed to optimize QoS in WBAN to improve network lifetime. Such as energy-efficient, duty cycle, power consumption, end to end delay using optimization algorithms.

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Breaking A Playfair Cipher Using Single and Multipoints Crossover Based on Heuristic Algorithms

2021-01-01 , Naji M.A. , Atee H.A. , Jebur R.S. , Hammood D.A. , Der C.S. , Abosinnee A.S. , Yasari A.K.I. , R Badlishah Ahmad

The process of data protection in our time is one of the most important challenges to maintain data integrity. The massive problem of breaking ciphertext is to find the key. In this work, cryptanalyze Playfair cipher is presented using a heuristic, and optimization methods search such as Memetic algorithm (MA) and Genetic algorithms (GA) to optimize fitness function. Di-gram letters are used as an essential factor in cryptanalyzing cipher. Mathematical methods are used to identify plain text. Furthermore, Single and multi-points crossover are used as parameters in the heuristic algorithm, and two points mutation as well. The results revealed that the multi-points are better than single point, which take a chance for exchanging the key to close the key encryption. In addition to, MA is better than GA, which the number of maximum correct letters in MA was 24 out of 25 letters after 100 generations, while in GA was 20 out of 24 letters after 200 generations. MATLAB application is used for programming and tested successfully.

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