Papers by Mohamed Hadi Habaebi
Long-Term Evolution (LTE) is a recently evolving technology characterized by very high speed data... more Long-Term Evolution (LTE) is a recently evolving technology characterized by very high speed data rate that allows users to access internet through their mobile as well as through other electronic devices. Such technology is intended to support variety of IP-based heterogeneous traffic types. Traffic scheduling has a very significant impact in LTE technology by assigning the shared resources among users very efficiently. This paper discusses the performance of three types of scheduling algorithms namely: Round Robin, best Channel Quality Indicator (CQI) and Proportional Fair (PF) schedulers representing the extreme cases in scheduling. The scheduling algorithms performances on the downlink were measured in terms of throughput and block error rate by using a MATLAB-based system level simulation. Results indicate that the best CQI algorithm outperforms the other algorithms in terms of throughput levels but on the expense of fairness to other users suffering from bad channel conditions. ABSTRAK: Teknologi baru Evolusi Jangka Panjang (LTE) sentiasa berubah dan ia bercirikan kelajuan kadar data sangat tinggi yang membolehkan pengguna mengakses internet melalui telefon bimbit dan peranti elektronik lain. Teknologi seperti ini bertujuan menyokong pelbagai jenis trafik heterogen berasaskan IP. Penjadualan trafik memainkan peranan penting dalam teknologi LTE bagi mengagihkan sumber perkongsian secara paling berkesan di kalangan pengguna. Kertas ini membincangkan prestasi tiga jenis algoritma penjadualan iaitu: pusingan Robin, penunjuk kualiti saluran (CQI) terbaik dan penjadualan berkadar adil (PF) yang merupakan kes ekstrem dalam penjadualan. Prestasi penjadualan Algoritma di pautan turun diukur dari segi daya pemprosesan dan kadar ralat blok melalui simulasi sistem menggunakan MATLAB. Hasil kajian menunjukkan algoritma CQI adalah yang terbaik berbanding hasil algoritma lain dari segi tahap daya pemprosesan tetapi algoritma ini menyebabkan pengguna lain mengalami keadaan saluran buruk.
Electronics Letters, 2000
ABSTRACT A new wireless framed pseudo-Bayesian Aloha algorithm with adaptive priorities for wirel... more ABSTRACT A new wireless framed pseudo-Bayesian Aloha algorithm with adaptive priorities for wireless ATM reservation-based TDMA MAC protocols, is presented. The throughput, in the presence of Rayleigh fading, shadowing and capture, is calculated and the waiting time of the different priority traffic classes is estimated using simulation models
IOP Conference Series: Materials Science and Engineering, 2013
ABSTRACT NEMO BSP is an upgraded addition to Mobile IPv6 (MIPv6). As MIPv6 and its enhancements (... more ABSTRACT NEMO BSP is an upgraded addition to Mobile IPv6 (MIPv6). As MIPv6 and its enhancements (i.e. HMIPv6) possess some limitations like higher handoff latency, packet loss, NEMO BSP also faces all these shortcomings by inheritance. Network Mobility (NEMO) is involved to handle the movement of Mobile Router (MR) and it's Mobile Network Nodes (MNNs) during handoff. Hence it is essential to upgrade the performance of mobility management protocol to obtain continuous session connectivity with lower delay and packet loss in NEMO environment. The completion of handoff process in NEMO BSP usually takes longer period since MR needs to register its single primary care of address (CoA) with home network that may cause performance degradation of the applications running on Mobile Network Nodes. Moreover, when a change in point of attachment of the mobile network is accompanied by a sudden burst of signaling messages, "Signaling Storm" occurs which eventually results in temporary congestion, packet delays or even packet loss. This effect is particularly significant for wireless environment where a wireless link is not as steady as a wired link since bandwidth is relatively limited in wireless link. Hence, providing continuous Internet connection without any interruption through applying multihoming technique and route optimization mechanism in NEMO are becoming the center of attention to the current researchers. In this paper, we propose a handoff cost model to compare the signaling cost of MM-NEMO with NEMO Basic Support Protocol (NEMO BSP) and HMIPv6.The numerical results shows that the signaling cost for the MM-NEMO scheme is about 69.6 % less than the NEMO-BSP and HMIPv6.
2013 IEEE International Conference on Smart Instrumentation, Measurement and Applications (ICSIMA), 2013
ABSTRACT Gait is defined to be the coordinated, cyclic combination of movements that result in hu... more ABSTRACT Gait is defined to be the coordinated, cyclic combination of movements that result in human locomotion. Gait recognition refers to identify a human by the style/way, a person walks in image sequences. The objective of this paper is to implement the traditional gait recognition algorithm and to show the variation in gait recognition when subject is observed parallel to camera under three conditions-walking normal, carrying a bag and wearing a coat. In this work, we are devising a novel method for the purpose of similarity computation rather than the traditional recognition where 78.57% of overall recognition rate was obtained. Furthermore, noise is introduced to evaluate its effect on the recognition rate.
2013 IEEE International Conference on Smart Instrumentation, Measurement and Applications (ICSIMA), 2013
ABSTRACT The enormous amount of data has been boundlessly growing over the last few decades and e... more ABSTRACT The enormous amount of data has been boundlessly growing over the last few decades and expected to exponentially do so in the future. However, a substantial size of this accumulated amount is discarded anyhow. The processing capabilities have been considered as one of the major barriers in the way of exploiting this priceless mine. Therefore, the issue has absorbed considerable part of researchers' concentration. OLAP has been considered as a powerful method for analysing excessive size of data that works closely to intelligent business, medical fields. Yet, such a method will always need increasing processing resources. Numerous enhancements have been suggested in order to improve OLAP performance, part of them has gone to the processing capabilities whereby parallel processing has occupied a sizeable space. A heterogeneous computing is a relatively recent approach that is being under examination. In this paper, through experimental results and based on Rabin-Karp Algorithm; we propose an optimized heterogeneous solution that takes into account the benefits and the boundaries in order to achieve a better OLAP performance in terms of response time with three times gain. In the light of our results; we present the achieved gain and possible future trends.
IOP Conference Series: Materials Science and Engineering, 2013
ABSTRACT Gait recognition is usually referred to signify the human identification by the style/wa... more ABSTRACT Gait recognition is usually referred to signify the human identification by the style/way people walk in image sequences. Our aim is to implement the traditional gait recognition algorithm and to show the variation in gait recognition when subject is observed parallel to camera under three conditions- walking normal, carrying a bag and wearing a coat. However in this case, the work devises a novel method for the purpose of similarity computation rather than the traditional recognition where the overall recognition rate of 78.57 percent was obtained.
2014 International Conference on Computer and Communication Engineering, 2014
IOP Conference Series: Materials Science and Engineering, 2013
ABSTRACT A smart grid refers to a modernization of the electricity system that brings intelligenc... more ABSTRACT A smart grid refers to a modernization of the electricity system that brings intelligence, reliability, efficiency and optimality to the power grid. To provide an automated and widely distributed energy delivery, the smart grid will be branded by a two-way flow of electricity and information system between energy suppliers and their customers. Thus, the smart grid is a power grid that integrates data communication networks which provide the collected and analysed data at all levels in real time. Therefore, the performance of communication systems is so vital for the success of smart grid. Merit to the ZigBee/IEEE802.15.4std low cost, low power, low data rate, short range, simplicity and free licensed spectrum that makes wireless sensor networks (WSNs) the most suitable wireless technology for smart grid applications. Unfortunately, almost all ZigBee channels overlap with wireless local area network (WLAN) channels, resulting in severe performance degradation due to interference. In order to improve the performance of communication systems, this paper proposes an optimal throughput and self-adaptability of ZigBee/IEEE802.15.4std for smart grid.
Lecture Notes in Electrical Engineering, 2015
Lecture Notes in Electrical Engineering, 2014
Lecture Notes in Electrical Engineering, 2014
2014 International Conference on Computer and Communication Engineering, 2014
ABSTRACT
2014 IEEE 8th International Power Engineering and Optimization Conference (PEOCO2014), 2014
ABSTRACT Supervisory Control and Data Acquisition (SCADA) system is a computer system for collect... more ABSTRACT Supervisory Control and Data Acquisition (SCADA) system is a computer system for collecting and analysing data in almost real-time fashion for monitoring and control of electric powersystem applications. Thus, communication channels play a core role in SCADA systems implementation. The use of wireless sensor network (WSN) communication can, however, lead to a more flexible and powerful electric power systemprotection scenarios than the current used wired sensor. Hence, in order to provide a real-time data exchange in Low Voltage Smart Grid Distribution Systems and thus, predict a Real-time electric power system control, a Novel IEEE802.15.4 Protocol aimed atWSN for Modern SCADA Communication System is modeled in this paper. The protocol performance is evaluated using NS-2 Simulation and the preliminary results are encouraging.
2013 IEEE 7th International Power Engineering and Optimization Conference (PEOCO), 2013
ABSTRACT The future of Smart Grid is based on grid-integrated real-time communications between th... more ABSTRACT The future of Smart Grid is based on grid-integrated real-time communications between the grid elements of generation, transmission, distribution and loads. Due to Zigbee/IEEE 802.15.4 standard's features such as low cost, low power, low data rate, short range, simplicity and free licensed spectrum which makes Zigbee-based wireless sensor networks (WSNs) the wireless technology of choice for smart grid applications. This paper focuses on the electricity distribution layer, ranging from Advanced Metering Infrastructure (AMI) gateways at the house-hold to the distribution point where a multi-hop mesh network is built for large coverage data exchanges. Although beacon-based mode of operation is adopted in IEEE802.15.4 standard, it does not, however, specify any mechanism to enable beacon mode in mesh networks. Therefore, in this paper, the Zigbee/IEEE 802.15.4 MAC protocol is modified to suit the beacon-based wireless sensor multi-hop mesh networks application. Such network configuration is expected to proliferate in is smart grid auto-metering scenarios. A simulation model was built and validated using the network simulator (NS-2) and the preliminary results showed considerable enhancements as expected for the ZigBee/IEEE 802.15.4 MAC protocol.
2013 INTERNATIONAL CONFERENCE ON COMPUTING, ELECTRICAL AND ELECTRONIC ENGINEERING (ICCEEE), 2013
In order to support mobile network, a management mechanism of Network Mobility Basic Support Prot... more In order to support mobile network, a management mechanism of Network Mobility Basic Support Protocol (NEMO BSP) has been standardized by Information Engineering Task Force (IETF). NEMO BSP is an extension of Mobile IPv6 (MIPv6) and inherits all the shortcomings like higher handoff latency, packet loss etc. As Network Mobility (NEMO) is engaged to manage the movement of Mobile Router (MR) and it's Mobile Network Nodes (MNNs) during handoff, it is very important to improve the performance of mobility management protocol to achieve continuous Internet connectivity with lower delay and packet loss in NEMO environment. When a change in point of attachment of the mobile network is accompanied by a sudden burst of signaling messages, "Signaling Storm" occurs and it ultimately results in temporary congestion, handoff delays, or even packet loss. This effect is especially noteworthy for wireless environment where bandwidth is relatively limited. Therefore providing uninterrupted Internet connection through applying multihoming technique in NEMO is becoming most significant areas for current researchers. The purpose of this paper is to give a general overview on existing mobility management approaches which enable multihoming and network based mobility protocol with NEMO in an integrated manner. Furthermore, it highlights the strengths and the limitations of these schemes for future analysis.
2012 International Conference on Computer and Communication Engineering (ICCCE), 2012
ABSTRACT Multi-band antennas are very important in many application systems such as mobile phone ... more ABSTRACT Multi-band antennas are very important in many application systems such as mobile phone jammer. A new shape triple-band microstrip antenna is proposed in this paper. By embedding h-shaped slots placed in the centre of a microstrip patch, the triple-band character can be achieved. Procedures to select the length and location of the h-shaped slots were discussed in detail. The required antenna gain, input impedance, radiation pattern and return losses were achieved.
Journal of Applied Sciences, 2015
2014 International Conference on Computer and Communication Engineering, 2014
2014 International Conference on Computer and Communication Engineering, 2014
2014 International Conference on Computer and Communication Engineering, 2014
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Papers by Mohamed Hadi Habaebi