scholarly journals Averting Paging Related Attacks in 4G LTE Communication System

2019 ◽  
Vol 8 (2S4) ◽  
pp. 160-163
Keyword(s):  
Communication System ◽  
Security Analysis ◽  
Long Term Evolution ◽  
Data Rate ◽  
Security Vulnerabilities ◽  
Term Evolution ◽  
Long Time ◽  
4G Lte ◽  
Secured Communication

Long Term Evolution (LTE) objective is to provide secured communication at higher data rate for the users. It’s been long time that the technology is being consumed by the users. However, there are still security vulnerabilities that provides scope for various attacks on the network. One such scenario is that attacks related paging procedure itself. This paper discusses about the possible attacks related to paging and how these attacks affect the security of the network and also propose a scheme to avert these attacks by leveraging the existing LTE communication system and also the simulation of the proposed scheme with the security analysis of the same

Simulación de cobertura del modelo de radio propagación 3GPP para un entorno urbano en una red 4G – LTE

2013 ◽  
Vol 8 (15) ◽  
pp. 33-40
Author(s):  
Javier Enrique Arévalo Peña
Keyword(s):  
Long Term Evolution ◽  
Term Evolution ◽  
Nuevas Tecnologías ◽  
4G Lte ◽  
3Rd Generation Partnership Project

En la planeación de las próximas generaciones de redes inalámbricas es importante contar con estudios de radio propagación que permitan establecer diseños adecuados para ofrecer los servicios proyectados por las nuevas tecnologías a los usuarios móviles. En este artículo se presentan aspectos relacionados con el comportamiento de cobertura de radio propagación del modelo propuesto por el 3GPP (3rd Generation Partnership Project) para un entorno urbano en una red LTE (Long Term Evolution) empleando sistemas de antenas convencionales y sistemas de antena adaptativas (AAS). Para ello se utiliza la herramienta de software ICS Designer y se establece como escenario los alrededores la Fundación Universidad Autónoma de Colombia ubicada en el centro urbano de la ciudad de Bogotá D. C.

scholarly journals Analisis Tekno Ekonomi Perancangan Migrasi 2G/3G ke 4G (LTE)

2017 ◽  
Vol 7 (3) ◽  
pp. 329
Author(s):  
Harry Chrismanaria ◽  
Kus Prayoga Kurniawan
Keyword(s):  
Long Term Evolution ◽  
Term Evolution ◽  
4G Lte ◽  
Coverage Estimation ◽  
Capacity And Coverage

Kebutuhan masyarakat akan informasi dan komunikasi terus berkembang pesat dari waktu ke waktu. Menyebabkan pihak penyedia jasa layanan telekomunikasi seluler dituntut untuk berkembang guna memenuhi keragaman kebutuhan konsumennya Area Kota Bekasi merupakan area dengan prospek akan penggunaan layanan data yang tinggi karena merupakan pusat bisnis, perkantoran, perumahan dan perbelanjaan, sehingga pada area tersebut sangat cocok untuk dibuat analisis perencanaan jaringan migrasi 2G/3G ke 4G LTE. Upaya peningkatan layanan yaitu dengan mengimplementasikan teknologi yang lebih handal dari segi kecepatan akses maupun kapasitas serta ekspansi jangkauan. Teknologi Long Term Evolution(LTE) dapat menjadi jawaban atas kebutuhan tersebut. Di penelitian ini dianalisa secara teknologi dan ekonomi terhadap implementasi LTE pada jaringan operator XYZ. Model analisa yang digunakan berdasarkan prinsip tekno ekonomi dengan menggunakan metoda capacity and coverage estimation untuk menentukan perancangan teknologi LTE dan metoda DCF untuk menganalisa secara ekonomi dan mengukur kelayakan biaya yang dikeluarkan untuk implementasi LTE tersebut. Ada 3 Skenario untuk simulasi teknoeknomi yaitu Pesimis, Moderat dan Optimis. Dari simulasi skenario yang dilakukan, diperoleh kesimpulan yaitu NPV terbesar diperoleh berdasarkan skenario pertama dengan revenue optimis dengan pencapaian NPV sebesar Rp. 235.743.544.721,24, IRR sebesar 6% , dan waktu balik modal pada tahun ke 4 dan bulan ke 6. Untuk skenario kedua dengan pencapaian NPV sebesar Rp. 65.217.367.323,14, IRR sebesar 10% , dan waktu balik modal pada tahun ke 3 dan bulan ke 6. , diperoleh bahwa kemungkinan nilai NPV akan tetap positif, sehingga dapat disimpulkan bahwa implementasi LTE di wilayah Bekasi adalah layak untuk diimplementasikan.

The long-term evolution project

1985 ◽  
Vol 83 ◽  
pp. 203-214 ◽  
Author(s):  
A. Carusi ◽  
L. Kresák ◽  
E. Perozzi ◽  
G.B. Valsecchi
Keyword(s):  
Dynamical Evolution ◽  
Long Term Evolution ◽  
Astronomical Institute ◽  
Data Set ◽  
Future Developments ◽  
Term Evolution ◽  
Short Period ◽  
Long Time ◽  
Insight Into

AbstractThe Long-Term Evolution Project (LTEP), realized in collaboration by the IAS-Reparto di Planetologia (Rome, Italy) and the Astronomical Institute of SAV (Bratislava, Czechoslovakia), has been developed with the aim of giving a general insight into the dynamical evolution of short-period comets. The motion of all the known short-period comets has been investigated over a long time span (over 800 years) taking care, as far as possible, to eliminate the sources of possible discrepancies within the computations. An internally consistent data-set and an atlas of orbital evolutions are the first outputs of this project. The main characteristics of the LTEP are discussed, together with some general remarks on its importance for cometary studies, its limitations and the future developments.

scholarly journals Implementasi Virtual Private Network Failover Menggunakan Mikrotik Pada Jaringan Lokal Politeknik Negeri Sriwijaya

2021 ◽  
Vol 7 (2) ◽  
pp. 222-228
Author(s):  
Muhammad Munaza Fathsyah ◽  
Irawan Hadi ◽  
Irma Salamah
Keyword(s):  
Management System ◽  
Learning Management System ◽  
Virtual Private Network ◽  
Long Term Evolution ◽  
Border Gateway Protocol ◽  
Fourth Generation ◽  
Term Evolution ◽  
4G Lte ◽  
Private Network

Pertumbuhan, perkembangan, dan kebutuhan akan informasi terus-menerus menjadi sebuah kebutuhan primer bagi setiap masyarakat umum, organisasi, perusahaan, dan lembaga pendidikan. Salah satu contoh lembaga pendidikan yang memiliki kebutuhan akan informasi yaitu Politeknik Negeri Sriwijaya (Polsri), dimana dosen dan mahasiswa memerlukan koneksi melalui sebuah media kabel ataupun nirkabel untuk terhubung ke jaringan internet (global) maupun jaringan intranet (lokal). Sistem Akademik dan Learning Management System (LMS) adalah salah satu jaringan lokal Polsri yang paling sering diakses untuk memenuhi kegiatan akademik. Dosen ataupun mahasiswa sebagai client akan terus dapat mengakses jaringan lokal tersebut selama jalur komunikasi atau media transmisi antar router client dan router server tetap terhubung. Apabila jalur komunikasi utama antar router client dan router server terputus oleh faktor tertentu, maka client tidak dapat mengakses jaringan lokal sehingga proses kegiatan akademik menjadi terhambat. Untuk menghindari kejadian tersebut, maka diperlukan sebuah jalur komunikasi cadangan (backup link) dan suatu penerapan teknik failover pada sisi router client. Teknik failover adalah teknik yang memiliki kemampuan untuk mengalihkan jalur komunikasi utama ke jalur komunikasi cadangan sehingga komunikasi dapat terus berjalan meskipun jalur komunikasi utama terputus. Jalur komunikasi cadangan pada implementasi ini didukung oleh teknologi telepon seluler generasi keempat atau teknologi yang lebih dikenal dengan istilah 4G LTE (Fourth Generation Long Term Evolution). Selain itu, terdapat penerapan Virtual Private Network (VPN) tipe Layer Two Tunneling Protocol (L2TP) pada jalur komunikasi cadangan untuk menjaga keamanan komunikasi. Protokol routing yang akan digunakan untuk melakukan proses pertukaran informasi routing pada implementasi ini adalah Border Gateway Protocol (BGP).

scholarly journals STUDI KINERJA KENDALI DAYA KANAL UPLINK 4G LTE BERDASARKAN SIGNAL TO INTERFERENCE RATIO (SIR)

2018 ◽  
Vol 2 (1) ◽  
Author(s):  
Sapta Nugraha
Keyword(s):  
Power Control ◽  
High Speed ◽  
Power Level ◽  
Mobile Station ◽  
Reference Value ◽  
Data Access ◽  
Long Term Evolution ◽  
Term Evolution ◽  
4G Lte

Abstract4G Long Term Evolution (LTE) has a standard for wireless communication with high-speed data access on cellular phones which have standard parameter i.e. power control. Power control is a method to avoid interference inter-users, as a result of power variations. Interference inter-users will cause performance limitations of the quality of service telecommunications operator. In this paper, we will design power control on the uplink channel based on the Signal to Interference Ratio (SIR) so that power level of mobile station (MS) are approximately equal. Simulation results show that power of MS can reach -7 dB, average time above 17 ms. The results of the SIR can order MS to equalize the SIR power levels transmitted by some MS with SIR reference value. Keywords: power control, uplink channel, SIR, mobile station Abstrak4G Long Term Evolution (LTE) memiliki standar komunikasi nirkabel akses data berkecepatan tinggi pada telepon seluler yang memiliki parameter standar yaitu kendali daya. Kendali daya merupakan metode untuk menghindari interferensi antar pengguna akibat variasi daya. Interferensi antar pengguna menyebabkan keterbatasan kinerja kualitas layanan operator telekomunikasi. Pada penelitian ini, akan dirancang kendali daya kanal uplink berdasarkan SIR agar daya mobile station (MS) mendekati sama. Hasil simulasi menunjukkan bahwa daya MS dapat mencapai -7 dB, rerata waktu di atas 17 ms. Hasil menunjukkan SIR dapat memerintahkan MS menyamakan daya yang ditransmisikan beberapa MS dengan nilai SIR referensi. Kata Kunci: kendali daya, kanal uplink, SIR, mobile station

Long time convergence of magnetohydrodynamic flows to alfvénic states

2007 ◽  
Vol 73 (6) ◽  
pp. 947-955
Author(s):  
MANUEL NÚÑEZ
Keyword(s):  
Magnetic Field ◽  
Long Term Evolution ◽  
Static Equilibrium ◽  
Transient Processes ◽  
Term Evolution ◽  
Magnetohydrodynamic Flows ◽  
Long Time ◽  
Simple Class ◽  
Turbulent Plasmas

AbstractAlfvénic states of a plasma, where velocity and magnetic field coincide, form a particular simple class of ideal equilibria and are also found in certain astrophysical phenomena. While transient processes of alignment in turbulent plasmas are well known and due to preferential spectral transfer, the possible long-term evolution of a magnetohydrodynamic plasma towards an alfvénic state has been rarely studied. It is shown that this tendency does not exist: neither specific ideal alfvénic equilibria nor the whole set of such states attract trajectories in any functional sense. Another possibility is that the perturbations of a static equilibrium could tend to become alfvénic, such as the classical Alfvén waves. We find that if these equilibria are current free, when a perturbation approaches an alfvénic state it immediately bounces away from it.

Performing Analysis of Quality of Service Parameters of 4G Long Term Evolution in Health Care System

2019 ◽  
Vol 16 (12) ◽  
pp. 5008-5013
Author(s):  
Suresh B. Rangankar ◽  
Nitiket Mhala
Keyword(s):  
Health Care ◽  
Health Services ◽  
Health Care System ◽  
Long Term Evolution ◽  
Term Evolution ◽  
Wide Range ◽  
4G Lte ◽  
The Right ◽  
Care System

Long Term Evolution (LTE) is a leading 4G wireless broadband technology developed by the Third Generation Partnership Project (3GPP) Release 8. LTE is expected to provide very fast, highly responsive and cost effective data services and appears itself to be the right technology at the right time. LTE is becoming an ultimate choice for 4G services around the world due to its higher data rates and lower latency objectives. E-Health services comprise a wide range of healthcare services delivered by utilizing information and communication technology. In order to help existing and emerging e-Health services over converged next generation network (NGN) architectures, there is a need for network QoS control mechanisms that meet the often stringent requirements of such services. The mobile Health (m-health) is currently uniting major academic research worldwide to achieve innovative arrangements in the areas of healthcare. However, there are several challenges and issues that need to be addressed. In this paper we have proposed m-health care system based on 4G LTE network communication instead of existing 3G communication system. We will be monitoring QoS parameters like Delay, Throughput, Jitter, Energy Efficiency and Packet Data Rate for comparing 3G and 4G LTE usage over health care applications. We will further experiment the parameters with graph based analysis.

scholarly journals High performance turbo encoder using mealy FSM state encoding technique

2018 ◽  
Vol 7 (3.3) ◽  
pp. 255 ◽  
Author(s):  
E Sujatha ◽  
Dr C. Subhas ◽  
Dr M. N. Giri Prasad
Keyword(s):  
Wireless Communication ◽  
Communication System ◽  
Binary Data ◽  
High Speed ◽  
Long Term Evolution ◽  
Quality Data ◽  
Wireless Communication System ◽  
Term Evolution ◽  
Turbo Encoder

Error-correction Coding plays a vital role to obtain efficient and high quality data transmission, in today’s high speed wireless communication system. Considering the requirement of using high data rates by Long Term Evolution (LTE) system, parallel concatenation of two convolutional encoders were used to design turbo encoder. In this research task a high speed turbo encoder, which is a key component in the transmitter of wireless communication System, with memory based interleaver has been designed and implemented on FPGA for 3rd Generation Partnership Project (3GPP) defined Long Term Evolution – Advanced (LTE-A) standard using Finite state Machine(FSM) encoding technique. Memory based quadratic permutation polynomial (QPP) interleaver shuffles a sequence of binary data and supports any of the 188 block sizes from N= 40 to N= 6144. The proposed turbo encoder is implemented using 28nm CMOS technology and achieved 300 Mbps data rate by using 1% of available total hardware logic. By using the proposed technique, encoded data can be released continuously with the help of two parallel memories to write/read the input using pipelining concept.  

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