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Although Long-term Evolution (LTE) technology has currently being used in data and voice transmission, reserved frequency bands for GSM is still in use due to its strengthen against multipath fading and it provides wider coverage area. Poor coverage problems caused by low signal level directly reduce network performance and cause undesirable cases for voice transmission. The aim of this study is first to solve handover (HO) problems due to the low signal quality and bad speech quality by hardware configuration and changing optimization parameters in detail as a novelty. The second is to examine the KPI values of the test region where HO problems have been solved and to determine whether the network contributed to the network quality. Offered method has made the network having following improvements; the value of RxQual drops from 0.61 to 0.57, number of failure in random access channel (RACH) drops down from 12 to 2, the number of failure in SDCCH drops down from 6 to 2, the total number of blocked calls from 18 to 4, and the number of dropped calls drops down to 2 from 5. Another criterion of the network quality the average for both uplink and downlink mean opinion score (MOS) value of region increased from 3.51 to 3.86. Also CSSR has been increased from 94.43 to 97.82% and HO success rate has been reached from 93.56 to 99.13%.
Wireless Communications and Mobile Computing
A measurement-based study of handover improvement through range expansion and interference coordination2014 •
The purpose of this paper is to evaluate the impact of channel environment and bandwidth on the Reference Signal Received Power (RSRP) and Reference Signal Received Quality (RSRQ) measurement. Long Term Evolution (LTE) downlink simulation platform is set up to illustrate algorithms and results. Meanwhile algorithms of RSRP, Receive Strength Signal Indicator (RSSI) and RSRQ are proposed in the base of definitions and the availability of the proposed algorithm was confirmed by simulation platform. In order to reflect the real strength of signal, noise intensity has to be eliminated to calculate RSRP. Also RSRQ which expresses the relation between signal and noise should be fully utilized. Moreover simulation results on different Signal-to-Noise Ratio (SNR), bandwidth and distance are showed.
2016 •
Reception of good quality GSM signal in any area depends on a number of factors-Received Signal Strength (RSSI), the number of TRXs in the cell sites, the quality and type of hand-overs, the call traffic in a cell etc. The impact of these factors has a direct effect on the user experience, the image and patronage of the operator, penalties from regulator etc. In many parts of the world where GSM services are operated, some of the most annoying phenomena include call setup blocking, call drops, inability to initiate calls, low signal level on the user’s mobile. In this paper, Received Signal Strength (RSSI) levels of BTS cells from different Network Operators are measured to determine the level and quality of Received Signals, the ‘dead’ spots around Covenant University environment, to determine the signal strength distribution, and perform a side by side comparison of the signal strength (quality) from these Operators. There are many methods for measuring Received signal strength of...
2008 •
International journal of Computer Networks & Communications
Lorawan Scalability Analysis – Co Spreading Factor Interference2020 •
Education Sciences
Examining the Influence of Secondary Math and Science Teacher Preparation Programs on Graduates' Instructional Quality and Persistence in Teaching2024 •
2023 •
In Justin Mihoc & Leonard-Daniel Aldea. 2015. A Celebration of Living Theology: a Festschrift in Honour of Andrew Louth. London: Bloomsbury, 205-213
Patristics after Neo-PatristicsMarine Ecology Progress Series
Link between reproductive output and larval supply of a common damselfish species, with evidence of replenishment from outside the local population2002 •
Evolution and Trends of Sustainable Approaches
Exploring sustainable workforce management: Trends, solution approaches, and practices2024 •
Zeitschrift Fur Physik C-Particles and Fields
Search for lepton flavour number violating Z(0)-decays1997 •
Fisioterapia em Movimento
Alteração da temperatura nos tecidos biológicos com a aplicação do ultrassom terapêutico: uma revisão2012 •
Journal of general internal medicine
SGIM-AMDA-AGS Consensus Best Practice Recommendations for Transitioning Patients' Healthcare from Skilled Nursing Facilities to the Community2016 •
International Journal of Early Years Education
Multiple perspectives on the benefits of teaching of Vietnamese to preschool children in an Australian early childhood context2020 •
Quaternary Science Reviews
Linking CO2 degassing in active fault zones to long-term changes in water balance and surface water circulation, an example from SW Turkey2019 •
2017 •