Author: Muhammad Mokhlesur Rahman, Shalima Binta Manir
Abstract: Long Term Evolution (LTE) is consents pliable spectrum distribution which renders enriched wireless data services to users at lower latency and multi-megabit throughput. LTE uses Orthogonal Frequency Division Multiple Access (OFDMA) and Single Carrier Frequency Division Multiple Access (Sc-FDMA) for downlink and Uplink transmission where OFDMA has been acquired in LTE for downlink transmission which diminishes the terminal cost and power consumption and Sc-FDMA has been allocates multiple users to a shared communication resources. Frequency Division Duplex (FDD) and Time Division Duplex (TDD) are the prevailing duplexing scheme in LTE that provides deployable tractability according to spectrum assignation. In this paper, we analyze the performance of SC-FDMA and OFDMA in LTE Frame Structure based on Peak to Average Power Ratio (PAPR) analysis. ITU Pedestrian A channel and ITU Vehicular A channel and also Additive White Gaussian Noise (AWGN) channel are used for analyzing the error performance between SC-FDMA and OFDMA
Published On : Jun 6, 2012
Author: Shalima Binta Manir; Muhammad Mokhlesur Rahman; Tanvir Ahmed
Abstract: Long Term Evolution (LTE) is the largest wireless communication technology which renders substantially increased data rates to gain higher efficiency in multimedia system. LTE provides flexibility of using existing and new frequency band as well as reduced cost per bit, increased services provisioning, lower response time and wider spectrum. To conciliate all types of spectrum resources Frequency Division Duplex (FDD) and Time Division Duplex (TDD) duplexing schemes are used in LTE to share the same underlying framework. This paper is an overview of comparison between FDD and TDD based on Peak-to-average power ratio (PAPR) analysis in Single-carrier frequency-division multiple access (SC-FDMA). The error performance is simulated based on Signal-to-Noise ratio (SNR) Vs. Bit Error Rate (BER) for two types of multipath channel i.e. ITU Pedestrian A channel and ITU Vehicular A channel and also Additive White Gaussian Noise (AWGN) channel is used.
Published On : 04 October 2012