scholarly journals Performance evaluation of UE-controlled intelligent handover algorithm for natural disaster

2020 ◽  
Vol 20 (1) ◽  
pp. 24
Author(s):  
Azita Laily Yusof ◽  
Ainnur Eiza Azhar ◽  
Norsuzila Ya’acob
Keyword(s):  
Natural Disaster ◽  
Signal Strength ◽  
Base Station ◽  
Battery Life ◽  
Signal Quality ◽  
Control Power ◽  
Simulation Results ◽  
Good Signal ◽  
Handover Algorithm

<span>This paper proposes a UE-controlled intelligent handover algorithm for natural disaster. In this handover algorithm, two variables known as modified Received Signal Strength (RSSm) and Left over Power (LoP) are identified. The RSSm is an improved formulation from RSS where distance fraction coefficient has been introduced. The fraction coefficient of 0.2 is used where the affected areas is reduced so that the users can receive good signal quality due to its location near to the base station. Meanwhile, the LoP also has been investigated to control power consumption of base station. In this research, 80% RSSm and 20% LoP has been chosen for the proposed handover algorithm as it can maintain good quality of service (QoS) for all users and also can prolong battery life.  From the simulation results obtained, the average number of handovers for the proposed handover algorithm outperformed the conventional natural disaster handover algorithm.</span>

scholarly journals Self-select target neighboring base station assisted handover for natural disaster in LTE-A network

2020 ◽  
Vol 19 (1) ◽  
pp. 309
Author(s):  
Azita Laily Yusof ◽  
Ainnur Eiza Azhar ◽  
Norsuzila Ya’acob
Keyword(s):  
Natural Disaster ◽  
Weighted Average ◽  
Signal Strength ◽  
Received Signal Strength ◽  
Base Station ◽  
Average Score ◽  
Battery Life ◽  
Power Outage ◽  
Two Parameters ◽  
Selection Of

This paper presents Self-Select Target Neighboring Base Station Assisted Handover for Natural Disaster in LTE-A Network. In this study, two parameters have been introduced which are known as received signal strength of user (RSS) and left over power of base station (LoP) in order to maintained good QoS of UE and prolong battery life of base station when there is power outage. A distance fraction coefficient (α) with value 0.2 has been introduced to RSS expression to improve the signal strength by reducing the area that the UE’s covered. Both parameters are used to calculate weighted-average score (WAS) for selection of potential target base station to avoid more users to connect to the affected base station. From the results, sRSS=0.8 gave the highest WAS with value of WAS=0.84 for users from 1 to 100 compares to other value of sRSS. Moreover, by using no natural disaster condition as reference, Condition 1 (wRSS=80%, wLoP=20% ) with the lowest percentage of improvement (3.75%.) will be chosen as handover condition as it near to base station, avoid overloaded users to the affected base station, hence prolong battery life as it only use 20% of battery usage.

scholarly journals Research and Simulation of Handover Algorithm in Mobile Communication System

2021 ◽  
Vol 2074 (1) ◽  
pp. 012039
Author(s):  
Lihua Sun
Keyword(s):  
Mobile Communication ◽  
Target Cell ◽  
Communication System ◽  
Control Algorithm ◽  
Signal Strength ◽  
Signal Quality ◽  
Mobile Communication System ◽  
Control Threshold ◽  
Threshold Setting ◽  
Handover Algorithm

Abstract In order to improve the handover rate and quickly handover the target cell, the handover control algorithm of the mobile communication system is explored, and the handover algorithm that combines signal strength and signal quality is researched. At the same time, it is experimentally demonstrated, and the handover user and the new user will be connected. The influence of the entry control threshold setting on the system was compared.

Evaluation of Statistics for Macrodiversity Systems Under the Influence of Specific Single Shadowing and Complex Fading

2019 ◽  
Vol 29 (09) ◽  
pp. 2050153
Author(s):  
Miljana Milic ◽  
Dragana Krstic ◽  
Mihajlo Stefanovic ◽  
Petar Nikolic
Keyword(s):  
Density Function ◽  
Average Power ◽  
Base Station ◽  
Base Stations ◽  
Closed Form Expression ◽  
Signal Quality ◽  
Form Expression ◽  
Micro Level ◽  
Text Density

Wireless signals often propagate in spaces containing large and small obstacles that affect the quality of such radiation. Obstacles cause a nonnegligible loss of the propagated power. The degradation of the signal quality is described by introducing fading and shadowing effects. A case of a wireless communication system that consists of a macro-level component represented by the selection combiner (SC) and two micro-level components consisting of the maximal ratio combiners (MRC) with [Formula: see text] branches is studied in this paper. The MRC component assumes the presence of a single-base station. The received signal is disturbed by simultaneous impact of the multipath Nakagami-[Formula: see text] fading and gamma shadowing. Consequently, the envelope is described by generalized-[Formula: see text] density function. On the other hand, SC component assumes the presence of two base stations, where the average power of the received signal is described using gamma distribution. The exact closed-form expression is obtained for probability density function of the signal at the output of the system, followed by the corresponding outage probability (Pout). Calculations are depicted graphically expressing influences of different fading values as well as the signal parameters.

scholarly journals Information System for the Improvement of Telecommunication Service Quality

2017 ◽  
Author(s):  
Elvis Assis ◽  
Emmanuel Tavares ◽  
Demóstenes Rodríguez ◽  
Renata Rosa
Keyword(s):  
Information System ◽  
Social Network ◽  
Geographic Area ◽  
Base Station ◽  
Base Stations ◽  
Telecommunication Service ◽  
Signal Quality ◽  
Telecommunication Services ◽  
Telecommunication Operators

This work describes an information system regarding to the telecommunication service with the goal to inform to the telephony service users about the operators signal quality and the users’ opinion about the telecommunication operators. The system contains information of cellular base station locations and the results are crossed with sentiment analyses of sentences extracted from a social network, which are related to the telecommunication services. The study aims to detect complaints and dissatisfaction of users about a determined service, helping to make a relation between the users’ complains extracted from social network with the number of base stations in the same geographic area of the user's social network. Therefore, the proposed information system can be used by the National Telecommunications Agency of each country for monitoring the quality-of-service of cellular network operators.

scholarly journals Enhanced QoS and QoE Support through Energy Efficient Handover Algorithm for UMTS Architectures

CONVERTER ◽  
2020 ◽  
pp. 01-07
Author(s):  
A. Kingsly Jabakumar
Keyword(s):  
Energy Efficient ◽  
Base Station ◽  
Trial Result ◽  
Fundamental Idea ◽  
Transmission Rates ◽  
Open Issue ◽  
The Impact ◽  
Handover Algorithm ◽  
Open Issues

Spectrum inefficiency is a significant issue because of the increasingly more solicitation of transmission capacity by the end clients. Accomplishing high transmission rates and elevated levels of Quality of Service (QoS) speaks to in any case an open issue. Long haul Evolution (LTE) has been proposed as the reason for the fourth era versatile cell systems (4G) that points of the LTE standard are higher client bit rates, lower delays, expanded range proficiency, diminished expense, and operational effortlessness. In any case, this innovation is as yet being worked on and a few open issues must be still explored, for example, obstruction coordination, and power utilization, assets the board and handover procedures. The point of this work is to ensure the decrease of intensity utilization utilizing another handover calculation dependent on green arrangement. Also, the proposed conspire ensures the minimization of superfluous handovers. In any case, the issue in this technique is doesn't mulls over of the impact of green strategies in high force hubs. Along these lines, in the proposed framework the impact of high force hubs are thought of. This situation is expanded more than one full scale cell and various kinds of low force hubs, for example, pico-cell and microcells. In this situation, the force sparing is broke down during the handover strategies. Think about these issues; another strategy is proposed called Dynamic base Station arranging (DBSP) for accomplishing vitality productivity. The fundamental idea is to kill a BS individually that will insignificantly influence the system by utilizing a recently presented thought of system sway, which considers the extra burden increases brought to its neighboring BSs. So as to additionally diminish the flagging and execution overhead over the air and back take, utilize the estimated estimations of system sway as their choice measurements. A trial result shows that the proposed strategy accomplishes high vitality proficiency under different situations. In this work the presentation of an UMTS organize situation is assessed by utilizing different estimations of the priority bits of the CBR application.

scholarly journals Performance analysis of handover parameter for natural disaster in LTE-A network

2019 ◽  
Vol 16 (1) ◽  
pp. 319
Author(s):  
Azita Laily Yusof ◽  
Ainnur Eiza Mohd Azhar ◽  
Norsuzila Ya’acob
Keyword(s):  
Natural Disaster ◽  
Path Loss ◽  
Signal Strength ◽  
Base Station ◽  
Base Stations ◽  
Coverage Area ◽  
Rescue Operation ◽  
Power Outage ◽  
Disaster Area ◽  
Optimal Value

<span>Natural disaster is an unpredictable event which can cause service communication disruption. The disruption of service communication can be divided into three cases which are power outage, broken backhaul and physical destruction by disaster. This paper focuses on power outage case. Although each base stations equipped with backup batteries, it only last for several hours. After natural disaster hit certain areas, traffic is highly congested due to panic and rescue operation of lifesaving. This scenario will drain the backup batteries quickly. In order to limit the UEs’ connection to the affected base station, this research proposed to adjust Received Signal Strength (RSS) based on parameter called as a distance fraction coefficient, α so that the affected coverage area is reduced when in disaster area situation. The parameter is added in the path loss equation and later in the RSS equation. The numerical results show the RSS improved whereby α=0.2 gives the optimal value and therefore limit the incoming traffic to the affected base station. </span>

scholarly journals Enhanced QoS and QoE Support through Energy Efficient Handover Algorithm for UMTS Architectures

2019 ◽  
Vol 8 (01) ◽  
pp. 01-07
Author(s):  
Mr. A. Kingsly Jabakumar
Keyword(s):  
Energy Efficient ◽  
Base Station ◽  
Trial Result ◽  
Fundamental Idea ◽  
Transmission Rates ◽  
Open Issue ◽  
The Impact ◽  
Handover Algorithm ◽  
Open Issues

Spectrum inefficiency is a significant issue because of the increasingly more solicitation of transmission capacity by the end clients. Accomplishing high transmission rates and elevated levels of Quality of Service (QoS) speaks to in any case an open issue. Long haul Evolution (LTE) has been proposed as the reason for the fourth era versatile cell systems (4G) that points of the LTE standard are higher client bit rates, lower delays, expanded range proficiency, diminished expense, and operational effortlessness. In any case, this innovation is as yet being worked on and a few open issues must be still explored, for example, obstruction coordination, and power utilization, assets the board and handover procedures. The point of this work is to ensure the decrease of intensity utilization utilizing another handover calculation dependent on green arrangement. Also, the proposed conspire ensures the minimization of superfluous handovers. In any case, the issue in this technique is doesn't mulls over of the impact of green strategies in high force hubs. Along these lines, in the proposed framework the impact of high force hubs are thought of. This situation is expanded more than one full scale cell and various kinds of low force hubs, for example, pico-cell and microcells. In this situation, the force sparing is broke down during the handover strategies. Think about these issues; another strategy is proposed called Dynamic base Station arranging (DBSP) for accomplishing vitality productivity. The fundamental idea is to kill a BS individually that will insignificantly influence the system by utilizing a recently presented thought of system sway, which considers the extra burden increases brought to its neighboring BSs. So as to additionally diminish the flagging and execution overhead over the air and back take, utilize the estimated estimations of system sway as their choice measurements. A trial result shows that the proposed strategy accomplishes high vitality proficiency under different situations. In this work the presentation of an UMTS organize situation is assessed by utilizing different estimations of the priority bits of the CBR application.

scholarly journals Cluster-Based Ranging for Accurate Localization in Wireless Sensor Networks

2010 ◽  
Vol 2010 ◽  
pp. 1-11 ◽  
Author(s):  
Simone Sergi ◽  
Fabrizio Pancaldi ◽  
Giorgio M. Vitetta
Keyword(s):  
Signal Strength ◽  
Wireless Sensor ◽  
Maintenance Costs ◽  
Positioning Systems ◽  
Accurate Localization ◽  
Multiple Power ◽  
Simulation Results ◽  
Indoor Scenarios ◽  
Power Measurements

A novel ranging technique based on received signal strength (RSS) and suitable to indoor scenarios is illustrated. In the proposed technique, multiple power measurements, associated with the signals radiated by a cluster of nodes surrounding a given target, are jointly processed to improve the quality of RSS-based estimation of the distance between the target and an anchor. Specific algorithms for the generation of a cluster and for the acquisition of power measurements are described. Simulation results show that, when used in indoor positioning systems, the proposed ranging technique is substantially more accurate than noncooperative strategies. In addition, it allows to concentrate significant processing tasks in a limited number of fixed anchors, so reducing maintenance costs and making it possible to adopt cheap and simple portable wireless nodes.

scholarly journals A Vertical Handover Algorithm in Integrated Macrocell Femtocell Networks

2017 ◽  
Vol 7 (1) ◽  
pp. 299
Author(s):  
Suman Deswal ◽  
Anita Singhrova
Keyword(s):  
Mobile Devices ◽  
Packet Loss ◽  
Signal Strength ◽  
Vertical Handover ◽  
Loss Ratio ◽  
Femtocell Networks ◽  
Packet Loss Ratio ◽  
Wireless Telecommunication ◽  
Good Signal ◽  
Handover Algorithm

<p>The explosion in wireless telecommunication technologies has lead to a huge increase in the number of mobile users. The greater dependency on the mobile devices has raised the user’s expectations to always remain best connected. In the process, the user is always desiring good signal strength even at certain black spots and indoors. Moreover, the exponential growth of the number of mobile devices has overloaded macrocells. Femtocells have emerged out as a good promising solution for complete coverage indoors and for offloading macrocell. Therefore, a new handover strategy between femtocells and macrocell is proposed in this paper. The proposed handover algorithm is mainly based on calculating equivalent received signal strength along with dynamic margin for performing handover. The simulation results of proposed algorithm are compared with the traditional algorithm. The proposed strategy shows improvement in two major performance parameters namely reduction in unnecessary handovers and Packet Loss Ratio. The quantitative analysis further shows 55.27% and 23.03% reduction in packet loss ratio and 61.85% and 36.78% reduction in unnecessary handovers at a speed of 120kmph and 30kmph respectively. Moreover, the proposed algorithm proves to be an efficient solution for both slow and fast moving vehicles.</p>

scholarly journals Mapping and Monitoring of Cell Signal Strength Using an Android-Based CDMA Mobile

2015 ◽  
Vol 1 (1) ◽  
pp. 62-72
Author(s):  
Roselina Febriati
Keyword(s):  
Mobile Station ◽  
Signal Strength ◽  
Base Station ◽  
Base Stations ◽  
Cell Identity ◽  
Cell Signal ◽  
Monitoring Process ◽  
Monitoring Result ◽  
Sd Card

In this study, an application was made that functions to map and monitor the signal strength of CDMA network cells using Android-based CDMA cellphones. This application functions to determine the signal quality of a CDMA network when the mapping and monitoring process is carried out. Cell signal strength information in Mappingke in a map based on google map. Meanwhile, information from monitoring results can be saved on the SD Card of the handphone with the .csv file format. the results of testing the information that can be map to the google map are the position of the BTS, the position of the MS, the value of RSSI and Ec / Io. Meanwhile, the monitoring result information that can be stored in a mobile SDCard is time, network type, CDMA cell identity which includes SID, NID, BID, base station latitude and longitude base station, MS position, cell signal strength which includes RSSI, Ec / Iodan SNR, along with the distance between MS and BTS.The CDMA cell identity information displayed by the application on the Samsung Galaxy Young mobile phone in the Malang area is correct and in accordance with the operator's data. The mapping information of RSSI and Ec / Io values ??into the google map is correct according to the value of the RSSI and Ec / Io base stations captured by the mobile station.

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