12 research outputs found
Developed Algorithm for Increasing the Efficiency of Data Exchange in a Computer Network
This paper presents specialized means to analyze, model and
research of data exchange in large-scale corporate computer
network. Due to extreme complexity of corporate intranet
networks and the internet has resulted in the apparent difficulties in the development of an analytical model. Thus, under these circumstances, simulation models became viable alternative to comprehend the behavior of these complex networks during data exchange. This research work examined the mode of data exchange since its perfection allows in many cases to obtain a considerable improvement of the network and also the network application performance without substantial additional expenditure.
Hence, the need for this developed algorithm for increasing the efficiency of data exchange in a computer network and the appropriate topology that suite this case. Test results from the algorithm showed an average of 10 to 15% increase and occasionally 60% and above increase in data exchange efficiency without additional expenses
Impacts of latency on throughput of a corporate computer network
This paper addressed the impacts of latency on good throughputs of a computer network. The networks latency contributed largely on the performance of Covenant University network. Experiment using the University network were carried out with the channel capacity, the file sizes with the distance varies to suit the performed experiment. The Mathlab/Simulink and Netcracker Professional systems were used to simulate the model network, throughput and latency. The results from simulated hypothetical corporate computer network were validated and compared to those obtained from some websites traffic, which indicated the impact of latency on good throughput of a corporate computer network decreases the efficiency of data exchange with increase in the number of users. Thus, poor data exchange in a network with constant and good throughput was better resolved through detailed knowledge of the latency
Teletraffic Modeling of Cdma Systems
This paper presents teletraffic modeling of Code Division Multiple Access (CDMA) systems that enabled the analysis of such systems capacity. Analytical tools aided by software model that assisted in analysis of the system performance, capacity estimation, dimensioning and design of CDMA networks were achieved. This work, therefore, focused on modeling telephone traffic for analysis of CDMA cellular network capacity. We developed an analytical expression for blocking probability and consequently that for the determination and analysis of the capacity of CDMA networks. The analyses of obtained results showed how interference determined the capacity of CDMA networks and therefore proved that the capacity was not hard limited, but depended on predetermined quality of service for the network. Also, the result showed how the capacity of the network, in terms of number of subscribers, can be estimated for CDMA networks. Graphical results generated from the blocking model showed the effect of variations in interference parameters on CDMA capacity. The Erlang capacity from the model was adapted into Erlang B formula to estimate capacity in terms of channels, and the number of subscribers a typical CDMA sector could accommodate
Optimized Remote Network Using Specified Factors As Key Performance Indices
This paper discuss the implementation of an optimized remote network, using latency, bandwidth and packet drop rate as key performance indicator (KPI) to measure network performance and quality of service (QoS). We compared the network performance characteristics derived on the Wide Area Network (WAN) when using Fiber, VSAT and Point-to-Point VPN across the internet respectively as the network infrastructure. Network performance variables are measured across various links (VAST, Fiber and VPN across the internet) and the corresponding statistical data is analyzed and used as base-line for the optimization of a corporate network performance. The qualities of service offered on the network before and after optimization are analyzed and use to determine the level of improvement on the network performance achieved
Controlling Link Congestion on Complex Network
We studied the impact of bandwidth utilization factor on converged network of Zain Contact Centre which is a complex network environment in Nigeria. Some congestion control techniques were reviewed. Experiments were carried out on the real network, a legacy network and an integrated converged network considering the same number of users. The corresponding packets were compared. As a result, higher throughput and minimal packet loss were achieved at lower bandwidth utilization and better than what was obtained at higher utilization using the same parameters
Managing and Improving Upon Bandwidth Challenges in Computer Network
Managing the bandwidth of a computer network is always faced with great challenges. This research was
necessitated by the urgent need to manage the University network currently experiencing congestion in both the
local LAďż˝ and on the internet backhaul with a view to improving network performance and reduce the huge
recurrent on the WAďż˝ link. However, there exists various ways that have been deployed towards solving these
problems. In this paper we examined existing bandwidth management, effect of limited bandwidth on the
network performance and profound solutions of techniques that enhanced or improved the bandwidth efficiency.
Also, included in this research work are the studies of the effect of limited bandwidth on work load, type of
protocol used and the effect of network congestion on the quality of service of a Wide Area �etwork (WA�). By
comparison, from the modeling of the effect of work load and limited bandwidth on the throughput of a wide
area network based on experimental simulation and real time simulation scenarios, some observations were
made and recommendation of solutions were given from the analyzed results
MONITORING AND FAULT DETECTION SYSTEM FOR POWER TRANSMISSION USING GSM TECHNOLOGY
The efficiency of power systems is largely
determined by the effectiveness of the inbuilt power
equipment. Monitoring transmission parameters for faults and
quick isolation of the system from faults helps to improve the
efficiency of the power systems reliability. Current
conventional method has its own limitations due to the
reliance on technical team to carrying out visual inspection in
order to identify any fault. Technologies such as Power line
carrier communication and the use of internet based
communication systems have their respective demerits. In this
paper the scholars presents the study of the use of GSM
technology, to provide a reliable monitoring and fault
detection system. Appropriate designed specific sensors were
used to monitor the changes in transmission parameters such
as voltage, current, temperature and frequency. Whenever
fault occurred the data acquired were transmitted to the utility
mobile phone as SMS via the GSM wireless network. The
system hardware was modeled using Proteus simulation tool
while Mikro-C was used for the software. With this system,
power transmission fault can be detected and isolated at the
shortest possible time
INTELLIGENT PLANT WATERING SYSTEM FOR RURAL FARMERS
This is an ongoing research study work. The
objective of this study is to build an intelligent plant watering
system for rural farmers. The study considered the availability of
water supply in specific regions for five years. Also vital
parameters statistics necessary for proper growth of each plant are
stored in the system data base over the same period. Our study is
primarily being guided by observations made in the rain fall
pattern, different weather conditions, and environmental situation
across the regions in the Northern and Southern parts of Nigeria.
The target farmers are very poor. Therefore, our task is to produce a
system that is affordable and reliable to these farmers. The
complexity and stability of the system notwithstanding, overall, this
study “Intelligent Plant Watering System for Rural Farmers” is
being carried out to provide the rural farmers with a cheap, durable,
power efficient, affordable, reliable, flexible, efficient and high
performance intelligent plant watering system. Although this study
is divided into three major groups, however, in this paper we try to
present a subgroup that deals with soil moisture and fertility. The
system based on its available statistics sets the various limits for the
soil moisture, temperature and fertility. These features in the system
ensure that water for irrigation is effectively managed and allowed
to flow during specified temperature range. Also the soil fertility is
properly regulated. This paper discursion focuses on the soil
moisture and temperatur
Developed Model to Control Congestion on Converge Network
Congestion control techniques like
Active Queue Management (AQM), Carrier Sense
Multiple Access/Carrier Detection (CSMA/CD) have not
proven to be very efficient in the presence of
overwhelming complex converge network. Thus, vast
packets in a complex converged network leads to
collisions, network degradation and high degree of
packet loss. Bandwidth utilization factor has a high
effect on the network such that controlling the level of
utilization via the management of the number of users
and the amount of packets on the network rendered the
latency very insignificant. As a consequence of this,
high throughput and very minimal packet loss was
achieved in the experiment. This was confirmed
analytically by varying the utilization factor between
40% and 90% while keeping other parameters in the
experiment constan
A WIRELESS SENSOR NETWORK BASED FIRE PROTECTION SYSTEM WITH SMS ALERTS
Modern buildings are becoming more complex in technical depth and compartmentalization. The average city dweller also has a complex daily living schedule that sometimes span the entire day with rests taken in between. Existing fire detection technologies have not caught up with the reality of today’s complex buildings and way of living. This paper proposes a fire detection system that integrates three capabilities, namely, detection, communication and suppression. It was designed with residential buildings in mind but can be adapted for top notch performance in commercial and other kinds of buildings. It seeks to address the salient issue of real time communication in the face of an unpredictable daily routine and first line suppression moves at the onset of a fire outbreak that most advanced fire detection systems in complex buildings of today have failed to address. The proposed system uses a controller, which comprises of a microcontroller and a Global System for Mobile Communication modem to co-ordinate the operation of a network of radio frequency transmission and reception capable smoke detectors, alarms, the main source of power to the building and a water pump (sprinkler system)