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The existing Private/Professional Mobile Radio (PMR) technologies designed specifically for Mission Critical Communication (MCC) systems are narrowband and wideband devices, with limited network data capacity in emergency scenarios. They are majorly used to support MCC voice communications and low data rate applications during mission critical operations. However, the need for broadband systems that...
This paper presents a methodology for evaluating the quality of service (QoS) provided by a Universal Mobile Telecommunications System (UMTS) network for data services that use HTTP. Data collected from drive testing were used as the means to evaluate different drive routes of varying quality. The methodology presented in this paper can be easily modified to work with different networks.
A wireless pressure monitoring system was developed by Florida Institute of Technology to measure wind induced pressure on low-rise structures during hurricanes. This study presents tests made to evaluate the performance of the sensors and their ability to measure accurate pressure variations. To test the reliability of the pressure sensors, a series of tests were designed. The resulting measurements...
A quality of service (QoS) assessment methodology for cellular communication networks is described. The methodology is based on the data collected through drive testing; it is focused on the end user perception of service quality and it is independent of access technologies implemented by the cellular networks. QoS assessment for both the circuit switched and packet switched side of the network is...
This paper presents a methodology for stochastic deployment of WSN. The methodology uses simulation, statistical analysis, and the Analytical Hierarchy Process to provide an approach that helps decision-makers determine the best deployment strategies based on mission specific goals. The methodology can be used to simplify the decision-making process and provide decision-makers the ability to consider...
Orthogonal Frequency Division Modulation (OFDM) is an efficient multi-carrier modulation scheme. It is used in many wireless communication systems due to its robustness towards fading channel behavior and a relative ease of implementation coming from computationally efficient Inverse Fast Fourier Transforms (IFFT). However, the OFDM waveform has a very large Peak-to-Average Power Ratio (PAPR). Therefore,...
This paper presents a novel wireless sensor network architecture designed for perimeter security monitoring over extended geographical regions. The architecture relies on customized protocols and deployment techniques to disseminate perimeter event detection and tracking data to the sink, which maybe located miles away from the perimeter of interest. Through consideration of application specific characteristics,...
Propagation model tuning is a fundamental part of everyday GSM cellular engineering practice. The model tuning is usually accomplished through elaborate and costly tests based on CW measurements. This paper evaluates alternatives to CW testing where measurements are collected using GSM scanners and GSM high dynamic range receivers. The results of the analysis reveal that GSM receivers provide a viable...
The received signal level (RSL) is one of the fundamental measurements performed in cellular system operation and maintenance. Network RF optimization, coverage verification, and quality of service estimation rely on RSL measurements collected from the field using one of commercially available drive testing systems. This paper presents a comparative study of a series of RSL measurements in the GSM...
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