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With the evolution of cellular networks and the panoply of different services offered, it is crucial for mobile network operators to start planning with procedures that are simple, inexpensive and robust. In this paper we develop and present a methodology for the planning and dimensioning of UMTS network dedicated to the region of Bejaia in Algeria. The work focuses on the UTRAN since the implementation...
Traditional coverage path planners create lawnmower-type paths in the operating area completely ignoring the uncertainty in the vehicle's position. However, in the presence of significant uncertainty in localization estimates, one can no longer guarantee that the vehicle will cover all the area according to plan. Aiming to bridge this gap, we present a coverage path planning technique for search operations...
Successful immunisation programmes generally result from high vaccine effectiveness and adequate uptake of vaccines. In the development of new vaccination strategies, the structure and strength of the local healthcare system is a key consideration. In high income countries, existing infrastructures are usually used, while in less developed countries, the capacity for introducing new vaccines may need...
Evacuation planning is extremely important, as it seeks to ensure the safety of individuals involved in the egress from an area. There have been different approaches proposed in crowd control. In this paper, two strategies for placement of stewards are provided - using the Maximal Coverage Location Problem and Integer Programming. Results are provided for a test environment. It is hoped that through...
Industrial WiFi network planning for a very large industrial hall is performed and results are compared for two planning approaches, namely an experimental site survey and a software-based automated planning. A software-automated process and a site survey yield comparable results. Reliable results can be obtained using an automated network planner with much less effort than when executing a time-consuming...
Development of LTE networks are still largely concentrated in urban areas and did not rule out some time in the future, rural areas can also enjoy this high-speed data services. In this paper, the performance analysis of LTE network on rural area is shown. Four scenarios are used and distinguished by frequency (900 and 1800 MHz) and bandwidth (5 and 20 MHz). Based on the results, the most effective...
In this paper, we use the Standard Propagation Model (SPM), as a path loss prediction model to analyze propagation characteristics of Managua city in order to implement coverage in a 3G-WCDMA network. SPM is integral part of propagation model used in today's radio network planning tools like ATOLL®. This contribution describes how the SPM can be calibrated and applied as a propagation model that can...
One of the tasks to be carried out during the robot exploration of an unknown environment, is the construction of a complete map of the environment at bounded time interval. In order for the exploration to be efficient, a smart planning method must be implemented so that the robot can cover the space as fast as possible. One of the most important information that an intelligent agent can have, is...
With the embrace of cellular telecommunication in Nigeria, the sector has experienced tremendous growth in terms of users. There have also been advances in technology from 2G to 3G and even 4G networks. Irrespective of the network in use, there is a section that is yet to have an alternative which is the base transceiver station BTS of the cellular network. This paper looks at the role of the BTS...
Ghost effects and obscured areas are common problems that occur when dealing with the generation of digital true orthophotos. Tall objects such as buildings and sudden relief changes will lead to problems where hidden objects arise, due to the relief displacement caused by the perspective planes. Several images are needed to get full coverage of the area which is also used in filling up the occluded...
By the institute for information industry commissioned planning and design of Taichung in central Taiwan Science Park WiMax wireless network system, the whole Chungke area is 3 km by 3 km. All antennas are directional and are mounted to the sides of 7 buildings, A basic requirement is that the area coverage being at least 90 %. The system starts out with 25 sites, to achieve the required 90 % coverage...
In this paper, we compare deterministic and probabilistic path planning strategies for an autonomous unmanned aerial vehicle (UAV) network, where the objective is to explore a given area with obstacles and provide an overview image. We present both online and offline implementations of the algorithms as alternative solutions, where applicable, and analyze the performance of the offline implementations...
Blocking probability, coverage quality, and interference are three imperative factors to be included in planning a radio frequency (RF) communication system. Coverage quality refers to the acceptable communication quality, which can be determined in three ways: land surface, population, or traffic. In a RF communication, interference can be categorized into noise, co-channel interference, and adjacent...
WCDMA is an air interface found in 3G. It is most commonly used member of the UMTS family. It utilizes the DSSS channel access method and the time division duplexing method to achieve higher speeds and support more users compared to most TDMA schemes used today. And namely therefore WCDMA network planning is so important nowadays.
In wireless systems (networks) planning, the typical goal is to maximize two parameters: coverage and capacity. Metrics describing each of these parameters are system-level channel characteristics: BER or data rate spatial distributions, etc. However, in practice, metrics based on physical radio channel characteristics are commonly employed instead (spatial distributions of signal level, SINR, delay...
The results of prediction using radio propagation models typically represent physical characteristics of a radio channel. The commonly exploited use of these characteristics as a metric in network planning, instead of rigorous system-level channel parameters, may lead to non-satisfactory results for modern communication and broadcast systems. In the current contribution, a general method for prediction...
Sensor planning chiefly applies to optimizing surveillance tasks, such as persistent tracking by designing and utilizing camera placement strategies. Against substituting new optimized camera networks for those still in usage, online sensor planning hereby involves the design of vision algorithms that not only select cameras which yield the best results, but also improve the quality with which surveillance...
With the vigorous development of China high-speed railway construction, more and more express railways whose speed are more than 350 km/h are putted into practical operation. The original coverage mode of the railway is unable to meet the demand of high-speed mobile users and the coverage of high-speed railway has become the keystone which operators focus on. This paper analyzes the key points of...
Different from 2G networks, in the planning of 3G mobile networks, frequency planning is not needed anymore because all the telecom operators use the same frequency. Coverage and capacity are the most essential dimensions in the wireless network planning, and they should not be considered separately. Therefore, under certain service quality requirement, we should consider the two aspects as a whole...
The directional sensor placement problem is an essential part of any planning model for directional wireless sensor networks. Its goal is to find an optimal subset of locations where directional sensors should be placed so that the total network cost is minimized while the requirements of coverage and connectivity are satisfied. Directional sensors are characterized by three important parameters:...
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