Power Control Weakness in Long Term Evolution Network

Author(s):  
Weilian Su ◽  
Too Huseh Tien ◽  
Tri Ha
2019 ◽  
Vol 13 (8) ◽  
pp. 1080-1086 ◽  
Author(s):  
Lei Zhang ◽  
Qin Ni ◽  
Guanglin Zhang ◽  
Menglin Zhai ◽  
Juan Moreno ◽  
...  

2018 ◽  
Vol 2 (1) ◽  
Author(s):  
Sapta Nugraha

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


2021 ◽  
Vol 3 (4) ◽  
Author(s):  
Bamidele Moses Kuboye

The advancement in cellular communications has enhanced the special attention given to the study of resource allocation schemes. This study is to enhance communications to attain efficiency and thereby offers fairness to all users in the face of congestion experienced anytime a new product is rolled out. The comparative analysis was done on the performance of Enhanced Proportional Fair, Qos-Aware Proportional Fair and Logarithmic rule scheduling algorithms in Long Term Evolution in this work. These algorithms were simulated using LTE system toolbox in MATLAB and their performances were compared using Throughput, Packet delay and Packet Loss Ratio. The results showed Qos-Aware Proportional Fair has a better performance in all the metrics used for the evaluation.


AFRICON 2015 ◽  
2015 ◽  
Author(s):  
Dinkisa A. Bulti ◽  
Dereje H. Woldegebreal ◽  
G David Gonzalez ◽  
Beneyam B. Haile ◽  
Jyri Hamalainen

Sign in / Sign up

Export Citation Format

Share Document