Title :
Performance evaluation of downlink LTE system
Author :
Bechir, Nsiri ; Nasreddine, Mallouki ; Messaoud, Eljamai ; Mahmoud, Ali
Author_Institution :
Nat. Eng. Sch. of Tunis (ENIT), Univ. of Tunis El Manar, Tunis, Tunisia
Abstract :
The design of the LTE physical layer is heavily influenced by the requirements for high peak transmission rate (100 Mbps DL/50 Mbps UL), spectral efficiency and designed to have wider channels up to 20MHz. Unfortunately, different constraints have a strong influence on system performance such as the velocity of user equipment and effect of multipath channel. In this paper, we carry out a performance evaluation of downlink LTE system for orthogonal frequency division multiple accesses (OFDMA) under LTE parameters. Different schemes of LTE configuration are described and simulated. Simulation result shown that the system performance is increased when the system is adapted to the state of the transmission channel.
Keywords :
Long Term Evolution; OFDM modulation; channel capacity; frequency division multiple access; multipath channels; LTE physical layer design; OFDMA; channel capacity; downlink LTE system; multipath channel; orthogonal frequency division multiple access; performance evaluation; Bandwidth; Downlink; Long Term Evolution; OFDM; Phase shift keying; Physical layer; Channel Capacity; Constellation; LTE; OFDMA;
Conference_Titel :
Advanced Technologies for Signal and Image Processing (ATSIP), 2014 1st International Conference on
Conference_Location :
Sousse
DOI :
10.1109/ATSIP.2014.6834663
