scholarly journals Design and Analysis WIMAX Network Based on Coverage Planning

2020 ◽  
Vol 26 (2) ◽  
pp. 99-110
Author(s):  
Ekhlas Kadhum Hamza ◽  
Shahad Nafea
Keyword(s):  
Wireless Network ◽  
Interference Cancellation ◽  
Base Station ◽  
Band Width ◽  
Quality Of Services ◽  
Network Coverage ◽  
Ieee 802.16E ◽  
Cell Coverage ◽  
Wimax Network

In this paper, wireless network is planned; the network is predicated on the IEEE 802.16e standardization by WIMAX. The targets of this paper are coverage maximizing, service and low operational fees. WIMAX is planning through three approaches. In approach one; the WIMAX network coverage is major for extension of cell coverage, the best sites (with Band Width (BW) of 5MHz, 20MHZ per sector and four sectors per each cell). In approach two, Interference analysis in CNIR mode. In approach three of the planning, Quality of Services (QoS) is tested and evaluated. ATDI ICS software (Interference Cancellation System) using to perform styling. it shows results in planning area covered 90.49% of the Baghdad City and used 1000 mobile subscribers and percentage connect with base station 84.3% on the establish QoS requirements .    

scholarly journals PEMETAAN QOS DENGAN METODE INTRINSIK BERBASIS STANDAR HATTINGH PADA JARINGAN WERELLESS UGM-HOSTPOT PPTIK UGM

Respati ◽  
2017 ◽  
Vol 8 (24) ◽  
Author(s):  
M. Agung Nugroho ◽  
Emma Utami ◽  
Sudarmawan Sudarmawan
Keyword(s):  
Wireless Network ◽  
Quality Of Services ◽  
Limited Capacity ◽  
Quality Service ◽  
Data Traffic ◽  
Monitoring Method ◽  
Network Quality ◽  
End To End ◽  
The Cost

The high usage of wireless network will affect the level of data traffic. if there are multiple users to request a connection with the limited capacity of the connection between the user simultaneously then it will wait for their turn in the connect. The simple solution for institutions by adding capacity or bandwidth. But by adding bandwidth, the cost is also quite large. End-to-end monitoring method allows a provider to determine the quality of service QoS using actual data from the availability of services. This information in turn can be useful to know the characteristics of the use of the service, so that the results of monitoring in the form of hotspot service profile may be a reference to determine the user's perception. The final results of this research is profile of network quality service of UGM-Hotspot on PPTIK UGM. It could be a reference to improve QoS, and reference for making policy-based network management. Keyword : QoS, hattingh standard, end-to-end monitoring, wireless network, quality of services

scholarly journals 4G Wireless network coverage prediction for operator “A” by using GIS  in Jeddah City: a case study of Al Nuzhah district: التنبؤ بتغطية أبراج شبكة الاتصالات اللاسلكية 4G للمشغل "أ" باستخدام نظم المعلومات الجغرافية في مدينة جدة (دراسة حالة حي النزهة)

2020 ◽  
Vol 4 (2) ◽  
Author(s):  
Noha Saeed Alhomrani, Sarra Al Habib Ouerghi
Keyword(s):  
Wireless Network ◽  
Communication Networks ◽  
Communication Systems ◽  
Propagation Model ◽  
Network Coverage ◽  
Network Efficiency ◽  
Jeddah City ◽  
4G Wireless ◽  
Coverage Prediction

Communication systems depend on cell tower signals which affect the quality and efficiency of communications networks. In this paper, a prediction network coverage of 4G wireless network for operator “A” in Al Nuzhah city has been elaborated. The main objective is, firstly, to come up with prediction network maps showing the quality of communication networks in the study area and to identify areas with good and bad coverage, in order to maintain and improve coverage through relocating cell towers and antennas, increasing their number, or through installing new ones in bad coverage areas. Another objective is to compare this output with actual network coverage efficiency. In this study, GIS programs were adopted to handle, manage, process and analyze spatial and attribute data. GIS extensions were used to design communication networks such as the Mentum-Planet program through which prediction network coverage was calculated and represented. Cell towers and sectors data was first collected and then processed to generate the 4G coverage network prediction for operator "A" based on propagation model (Q9). Results were later compared to the network efficiency generated by the Drive Test. It was found that the signal strength was between -95 and -75 db. About 24.2% and 75.8% of the studied area had medium and excellent network coverage, respectively. The Drive Test showed areas of poor network coverage distributed throughout the study area. This research concluded that use of GIS in communications reduces cost and time of implementation. It is highly recommended to include building heights in the propagation model as it affects the spread of communication waves, to increase cell towers in poor coverage areas, and to modify the propagation model to ensure quality of service and efficient coverage.

scholarly journals Iterative Intercell Interference Cancellation in MIMO Multicell Networks

2018 ◽  
Vol 2018 ◽  
pp. 1-8
Author(s):  
Zhengzhen Zhang ◽  
Chao Dong ◽  
Qian Wan
Keyword(s):  
Interference Cancellation ◽  
Mean Squared Error ◽  
Base Station ◽  
Intercell Interference ◽  
Minimum Mean Squared Error ◽  
Squared Error ◽  
Pilot Allocation ◽  
Receiver Performance ◽  
Multicell Networks

An iterative intercell interference cancellation algorithm is introduced to improve the receiver performance of uplink transmission in multicell networks. At first, the uplink signal detection is performed independently in each cell according to minimum mean squared error (MMSE) criterion. Subsequently, the detection results are applied to reconstruct the transmit signals of different users and cancel their interference to neighboring cells. With the help of reconstruction results, the MMSE detection matrix of each cell is updated. The channel responses of both efficient and interference links are estimated with the help of pilots. The pilot allocation parameter is introduced to indicate the quality of channel estimation. The simulation results indicate that intercell interference can be greatly mitigated by the proposed algorithm with a moderate number of receiver antennas at the base station.

scholarly journals Evaluating the Quality of Experience Performance Metric for UAV-Based Networks

Sensors ◽  
2021 ◽  
Vol 21 (17) ◽  
pp. 5689
Author(s):  
Abdukodir Khakimov ◽  
Evgeny Mokrov ◽  
Dmitry Poluektov ◽  
Konstantin Samouylov ◽  
Andrey Koucheryavy
Keyword(s):  
Quality Of Experience ◽  
Radio Channel ◽  
Base Station ◽  
Minimal Impact ◽  
Performance Metric ◽  
Cell Coverage ◽  
User Scenario ◽  
Aerial Vehicle ◽  
Single User

In this work, we consider a UAV-assisted cell in a single user scenario. We consider the Quality of Experience (QoE) performance metric calculating it as a function of the packet loss ratio. In order to acquire this metric, a radio-channel emulation system was developed and tested under different conditions. The system consists of two independent blocks, separately emulating connections between the User Equipment (UE) and unmanned aerial vehicle (UAV) and between the UAV and Base station (BS). In order to estimate scenario usage constraints, an analytical model was developed. The results show that, in the described scenario, cell coverage can be enhanced with minimal impact on QoE.

scholarly journals Improved handoff mechanism for infiltrating user equipments in composite networks

2020 ◽  
Vol 10 (3) ◽  
pp. 2600
Author(s):  
Venkata Vara Prasad Padyala ◽  
K.V.D. Kiran
Keyword(s):  
Quality Of Experience ◽  
Vital Role ◽  
Base Station ◽  
Small Cells ◽  
Network Coverage ◽  
Coverage Problem ◽  
Ping Pong ◽  
Hand Off ◽  
Technology And Communication

The wireless technology and communication plays a vital role in our daily life. The end users are expecting more Quality of Experience (QOE) rather than the Quality of Service (QOS). In order to provide full signal coverage the entire cellular network coverage is divided in to small cells called as femtocells, those femtocells are covered with femtocell antennas which are very small in size compared with regular antennas. With these femtocell coverage problem is solved but when a user moves from one location to another location the user has to switch from one base station to so many base station which cannot be maintained with present handoff methods. The present hand off methods working on distance calculation approach, the proposed method is based on the velocity and device direction calculated based on GPS location toward the Base Station (BS) of the device which may ping pong handoff effect.

scholarly journals Resource Allocation for Downlink Full-Duplex Cooperative NOMA-Based Cellular System with Imperfect SI Cancellation and Underlaying D2D Communications

Sensors ◽  
2021 ◽  
Vol 21 (8) ◽  
pp. 2768
Author(s):  
Asmaa Amer ◽  
Abdel-Mehsen Ahmad ◽  
Sahar Hoteit
Keyword(s):  
Resource Allocation ◽  
Channel Assignment ◽  
Interference Cancellation ◽  
Channel Allocation ◽  
Base Station ◽  
Cellular System ◽  
Full Duplex ◽  
D2d Communications ◽  
Power Budget

In this paper, the interplay between non-orthogonal multiple access (NOMA), device-to-device (D2D) communication, full-duplex (FD) technology, and cooperation networks is proposed, and a resource allocation problem is investigated. Specifically, a downlink FD cooperative NOMA-based cellular system with underlaying D2D communications is proposed, where, in each NOMA group, the strong user assists the weak user as an FD relay with imperfect self interference (SI) cancellation. In terms of reaping spectral efficiency benefits, the system sum rate is to be maximized by optimizing channel allocation. This optimization is based on quality of service (QoS) constraints of D2D pairs and cellular users (CUs), power budget of base station and strong user (cooperative phase), and successive interference cancellation (SIC) constraints. Since the maximization formulated problem is computationally challenging to be addressed, a two-sided stable many-to-one matching algorithm, based on Pareto improvement, performs sub-channel assignment. Extensive simulations are implemented to demonstrate the system performance indicated by different metrics.

scholarly journals Optimization Opportunities in Nigeria Telecoms Terrestrial Network - A Review

2018 ◽  
Vol 3 (10) ◽  
pp. 70-74
Author(s):  
Toluwanimi Oluwadara Akinyemi ◽  
Olayinka John Ramonu
Keyword(s):  
Lower Cost ◽  
Quality Of Services ◽  
Network Coverage ◽  
Mobile Telecommunication ◽  
Backbone Network ◽  
Fibre Network ◽  
Terrestrial Network ◽  
Telecommunication Operators

This study investigates into the possibilities and opportunities in Nigeria telecoms terrestrial network. The current backbone network map of two mobile telecommunication operators in Nigeria have been analysed for the purpose of determining the suitable fibre network coverage. A proposal has been drawn on the workability of a single national fibre network coverage resulting to increased quality of services at a lower cost to the consumers.

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