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Resource allocation mechanisms are important in assigning all available resources in the network. Scheduling is one of the resource allocation mechanism which will determine the performance of the network. This paper provides the performance analysis on three different scheduling algorithms in the Long Term Evolution-Advanced downlink transmission system with realistic channel model for urban macro...
The purpose of this study is to examine the relationships among workplace Internet leisure, workplace Internet leisure policy, workplace autonomy orientation, and employee satisfaction. Data were collected from 5 banks located in Kuala Lumpur. Out of 500 questionnaires were distributed, a total number of 282 completed questionnaires were returned. The data were analyzed using statistical package for...
The Radio Frequency Identification (RFID) system is an automatic identification technology of choice over other existing technologies. Nowadays, the ability to identify many objects simultaneously is crucial for more advanced applications such as to identify objects in the warehouse and at the supermarket. These applications require an efficient identification technique which can identify many objects...
This paper discussed on simulation investigation of triangle slot, circular slot and ellipse slot of Vivaldi antenna in term of bandwidth, reflection coefficient, gain and directivity which is operated at frequency of 10 GHz. Firstly, a normal Vivaldi antenna using FR-4 substrate had been designed and the single slot and double slot is developed. The double ellipse slots from 1mm to 5mm the gain and...
Data compression can help in relieving congestion by only reducing the effective data size without much effect on throughput. This paper proposes a joint data compression technique in congested networks. The proposed framework combines Lempel Ziv Welch (LZW) and Lightweight Dictionary-based Compression (LDC), the joint LZW and LDC is added on top of the TCP layer. When congestion is detected, the...
High gain wideband transceiver antenna for Ground Penetrating Radar (GPR) application is presented in this paper. The proposed antenna works in wide operational bandwidth across 1.1 GHz to 5.5 GHz frequency band. The wideband performance is achieved by chosing co-planar waveguide (CPW) line as a feeding method. In order to achieve high gain performance, a metal plate is placed at the back of the antenna...
In this paper we introduced two enhancement modifications to the well-known TCP Westwood fast retransmission and fast recovery mechanisms. Firstly, a new modification is introduced to fasten the fast retransmission procedure by preventing the TCP sender side from waiting the third duplicate ACKs to retransmit lost packets. Secondly, further modification is presented to achieve better recovery for...
Network virtualization as an important research, will have a far-reaching effect on next generation network. However, the current studies of virtual network (VN) pay more attention to the utilization of the substrate network (SN) and optimization of mapping algorithms, whereas the course of mapping they ignore some serious weaknesses such as substrate network's high availability. This paper we forces...
A design of modified H-shaped patch antenna with slots and modified ground plane is presented in this paper. H-patch configuration with modified ground plane is proposed to increase the directivity, bandwidth and reflection coefficient of antenna. The H-shape patch antenna is feed by transmission line. By giving extra slots on top of the patch, it can increase the reflection coefficient of antenna...
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