Paper Info
Title
Transmission Performance of an OFDM-Based Higher-Order Modulation Scheme in Multipath Fading Channels
Abstract
Fifth-generation (5G) mobile systems are a necessary step toward successfully achieving further increases in data rates. As the use of higher-order quadrature amplitude modulation (QAM) is expected to increase data rates within a limited bandwidth, we propose a method for orthogonal frequency division multiplexing (OFDM)-based 1024- and 4096-QAM transmission with soft-decision Viterbi decoding for use in 5G mobile systems. Through evaluation of the transmission performance of the proposed method over multipath fading channels using link-level simulations, we determine the bit error rate (BER) performance of OFDM-based 1024- and 4096-QAM as a function of coding rate under two multipath fading channel models: extended pedestrian A (EPA) and extended vehicular A (EVA). We also demonstrate the influence of phase error on OFDM-based 1024- and 4096-QAM and clarify the relationship between phase error and the signal-to-noise ratio (SNR) penalty required to achieve a BER of 1 x 10(-2). This work provides an effective solution for introducing higher-order modulation schemes in 5G and beyond.
Year
DOI
Venue
2019
10.3390/jsan8020019
JOURNAL OF SENSOR AND ACTUATOR NETWORKS
Keywords
Field
DocType
mobile communication,higher-order modulation,1024- and 4096-QAM,OFDM,multipath fading channels,SNR penalty,link-level simulations
Multipath propagation,Quadrature amplitude modulation,Computer science,QAM,Higher-order modulation,Modulation,Electronic engineering,Real-time computing,Viterbi decoder,Orthogonal frequency-division multiplexing,Bit error rate
Journal
Volume
Issue
ISSN
8
2
2224-2708
Citations 
PageRank 
References 
2
0.41
0
Authors
3
Name
Order
Citations
PageRank
Hiroyuki Otsuka17516.19
Ruxiao Tian220.41
Koki Senda321.08