Paper Awards

Best Paper Award

We are pleased to announce the 3 Best Papers awarded at IEEE SCOReD 2017:

 

To Investigate Classical Scheduling Schemes with Power Management in IaaS Cloud Environment for HPC Workloads

Aftab A. Chandio, Muhammad Saleem Korejo, Imtiaz Ali Korejo, Muhammad Saleem Chandio

This paper addresses the well-known virtual machine (VM) scheduling problem in infrastructure as a service (IaaS) cloud environments to reduce the operational cost of the system together satisfying quality of service (QoS) constraints. We provide the study to investigate classical scheduling schemes incorporated with power management techniques i.e., the dynamic voltage and frequency scaling (DVFS) in Private IaaS cloud environment for high performance computing (HPC) workloads. Specifically, one first served-based policy i.e., first come first serve (FCFS), two size-based policies i.e., smallest job first (SmJF) and shortest job first (ShJF), and one backfilling policy i.e., aggressive backfilling first (AgBF), are considered to investigate the environment. The highlighted the strengths and weaknesses of the VM scheduling schemes in this paper can help to choose the most appropriate scheme in the environment.

 

Measuring Human Joint Movement with IMUs 

Weiyang Xu, Cesar Ortega-Sanchez, Iain Murray

This paper presents a inertial measurement unit (IMU) based wireless, wearable sensor system and its algorithm to capture human joint orientation and movement. Many physiotherapy and kinematical studies require a precise analysis of human joint movements. The proposed system provides an economic and flexible solution to measure human joint movement. The system includes several customised low-cost, small, wireless IMU sensors (accelerometer and gyroscope combined) which can be easily attached on any part of the human body. A dongle connected to a computer receives data collected by the sensors in real-time. Data sets are stored in the computer for later analysis and visualization. The proposed algorithm can accurately extract human joint orientation from the raw measurements of two inertial sensors. Compared to other yaw, pitch and roll orientation algorithms, the presented algorithm only focuses on the relative angle between two sensors instead of using a ground plane reference. The algorithm can be easily embedded into a post data analysis system. With its light data load requirement, the algorithm can also be effectively built onto a real-time joint orientation capturing system. This paper provides a high-level description of both the hardware platform and the demonstration of the algorithm, and presents step by step plots verifying the algorithm’s performance. The system is currently used in a cerebral palsy research study in Australia.

 

Online Project Evaluation and Supervision System (oPENs) for Final Year Project Proposal Development Process 

Syila Izawana Ismail, Rina Abdullah, Siti Aishah Che Kar, Nazuha Fadzal, Hasiah Mohamed @ Omar, Hasnorhafiza Husni

The Online Project Assessment and Supervision System (oPENs) is developed with the aim to make it as a standard system that can be used in the Final Year Project (FYP) course for all UiTM campuses offering Diploma in Electrical Engineering (DEE). The main focus of this article is to introduce the system designed, which was developed as a medium of interaction between lecturer, students and course coordinator in managing the FYP process especially in the stage of project’s proposal preparation. Two main elements applied in oPENs are project evaluation and weekly report monitoring. In existing system, all hardcopy of the FYP1 related documents such as project approval form, evaluation form, as well as the project progress validation form should be submitted to the course coordinator. This practice sometimes will cause unexpected problems such as loss of forms, lack of documentation storage space, delay of submission of forms and so on. This makes it difficult for the course coordinators to effectively manage the documentation especially if it involves hundreds of students at one time. The oPENs system is developed using language of PHP Technology and the development tools used Macromedia Dreamweaver (which includes a local web server) and Java scripting language. The backend database is supported by MySQL Database, which is built into the database.

 

Congratulations to all the winners !

 

Congratulations also to the others who made the Top 10 list below:

 

Analysis of ROS Performance in Terms of Intelligent Monitoring of Discrete Machinery Manufacturing Control Systems 

Alexey Romanov,Mikhail Romanov,Vladimir Kholopov, Evgeniya Slepynina

In this work, the performance of the ROS framework in terms of intelligent monitoring systems of discrete machinery manufacturing control systems is evaluated. To solve the task, the requirements for the speed of monitoring systems have been defined, and a number of experimental estimates of the latencies in the ROS infrastructure have been made. Based on the outcomes of the latter estimates, an analysis of the applicability of the said means in various areas of machinery manufacture industry have been performed.

 

Partial Binary Encoding for Slepian-Wolf Based Proof of Retrievability

Choon Beng Tan, Mohd Hanafi Ahmad Hijazi ,Yuto Lim

Cloud storage is a storage service offered by Cloud Service Provider (CSP) to data client, where the data is outsourced to distributed servers in cloud, while data client has to pay upon usage. As integrity and availability are the pre-conditions for the existence of a cloud storage system, Proof of Retrievability (PoR) is introduced to cloud storage. Recently, Slepian-Wolf Based Proof of Retrievability (SW-PoR) was introduced that provides costefficient and time consistent exact repair mechanism for erroneous outsourced data. However, the encoding process of SW-POR requires a certain amount of computation time, which considerably long compared to conventional storage method involving replication. Hence, this paper proposed an extension work to SW-PoR, named Partial Binary Encoding for SW-PoR (PBE-SW-PoR) to address the limitation. Simulation was conducted to evaluate the performance of the proposed work by means of comparison to the original SW-PoR scheme in term of computation time. In our simulation, result obtained has shown a significant performance improvement in computation time for PBE-SW-PoR compared to original SW-PoR.

 

Mitigating the Impact of Malicious Behavior via Utilizing Multiple Routes in a Cooperative Sensing Cognitive Radio Network 

Mahmoud Fathy Mohamed, Ashraf Tammam, Asmaa Safan

Aiming at improving the utilisation of the available spectrum in Cognitive Radio Networks without interrupting the Primary User’s (PU) access to its radio asset, is a primary issue in this topic. Cooperative sensing techniques have been put forward to alleviate the accuracy of the radio access decision compensating for the intrinsic sensing errors in the devices if each on their own were to be relied on their sensing reports solely. But collaborating Secondary Users (SU) might pose a potential security threat, since a malicious node among the SUs might modify the resulted sensing reports according to its personal benefit. In this paper, we are studying how multiple routes might mitigate the effect of the malicious node. The study contrasts the impact of the malicious node by applying multiple routes versus the regular one route for each source. Results have been harvested from simulating the network in ns-3.

 

Omnidirectional Transmission Precoding for Uniform Planar Antennas Arrays 

Tianyang Cao

Common signals in cellular communications, e.g., synchronous signals or broadcast signal, should be transmitted omni-directionally for reliable cell-wide coverage. However, when the multiple antennas are employed, the transmit signals are not inherently omnidirectional unless precoding is properly designed. In this paper, we investigate the omni-directional precoding (OP) transmission in uniform planar array (UPA) equipped massive antenna communication systems. Based on the signal model of the line of sight (LOS) transmission for UPA, we derive the mathematical condition of OP matrix. For discrete angles, the Zadoff-Chu sequence that has been used in the design of OP matrix for the uniform linear array (ULA), can be extended to the UPA case by using Kronecker product. As such design does not result exact constant sum-power at any angles if there are a finite number of antennas, we then propose m sequences based OP matrices. The proposed precoding matrices guarantee the transmitted signal on each antenna has constant envelope thus achieving the full power-efficiency. Simulation results are presented in the term of cell-wide coverage. It shows that the proposed m sequence based precoding matrix has better omni-direction performance than existing ZC sequence based precoding that has been proposed for ULA.

 

Electromagnetic Design Analysis of Single Layered Linear Switching Machine with Fixed DC Excitation for Rail Brake Systems 

Aminath Saadha, Chockalingam Aravind Vaithilingam, Fairul Azhar Abdul Shukor, Preshant Krihsna

A number of new approaches is done recently in railway braking system by the way of minimizing energy loss. A prolific method of braking is the use electromagnetic brakes replacing the conventional mechanical and permanent magnet infrastructure is presented in this work. The electromagnetic design of a linear switched reluctance machine with controlled DC excitation for the purpose of braking is introduced. It is found that the DC field excitation coil produce the same effect as that of the permanent magnet structure with an improvement of 43.3% of thrust to volume ratio, a key development in this field of study.

 

Partial Discharge Characteristics of Aged Oil-Impregnated Paper Under High Humidity Level 

Nur Azalia Azrin, Mohammad Safie, Mohd Hafizi Ahmad, M. Afendi M. Piah, Zainuddin Nawawi, Muhammad Abu Bakar Sidik

This paper presents a study on partial discharge (PD) characteristics of aged oil impregnated paper under high humidity level. The presence of the void in the impregnated paper with exposure to high relative humidity would induce partial discharge occurrences which eventually degrade the insulation performance of the paper. In this work, an artificial cylindrical void was created and the oil impregnated paper was aged up to 16 hours at 90% relative humidity. Moreover, partial discharge inception voltage (PDIV) and partial discharge extinction voltage (PDEV) were recorded. Based on the results, the longer aging time of kraft paper, the lower the PDIV and the PD magnitude. It is implied that the longer exposure to a high relative humidity, the more moisture being absorbed by the paper causes high repetition of PD at corona discharge level.

 

2D Template Matching for Automated Inspection Using Generalized Hough Transform 

Junwon Mun, Jaeseok Kim

In this paper, we modify GHT to reduce its memory requirement and computational cost and improve its performance under rigid motion. In the proposed algorithm, orientation and displacement are determined separately using a multi-stage scheme, and the displacement accumulator-which occupies most of the memory-is downsampled without degrading detection resolution. Moreover, the template pose becomes more reliable by using an adaptive weight scheme when incrementing. Experimental results show that the proposed scheme has advantages in both computational complexity and memory requirement over conventional GHT, and pose determination is more stable.