Transmission performance of OFDM with 1024-QAM in the presence of EVM degradation

Author

Iwamoto, Mitsugu ; Matsuoka, Shingo ; Iwasaki, Hisao ; Otsuka, Hiroyuki

Author_Institution

Grad. Sch. of Electr. Eng. & Electron., Kogakuin Univ., Tokyo, Japan

fYear

2014

fDate

28-30 Aug. 2014

Firstpage

12

Lastpage

16

Abstract

This paper presents error vector magnitude (EVM) impact on the transmission performance of OFDM using a higher order modulation scheme such as 256- and 1024-QAM by link-level simulations. BER performance is highlighted as parameters of coding rates for 256- and 1024-QAM in the presence of EVM degradation. Using these results, we clarify the relation of spectral efficiency and channel quality, such as E_b/N_o, to meet a BER of 10^-2 for 64-, 256- and 1024-QAM from the link adaptation perspective. This will be useful for deciding an allowable EVM for each QAM and provide an effective way to help resource management in future mobile systems such as small cells.

Keywords

OFDM modulation; cellular radio; error statistics; quadrature amplitude modulation; 1024-QAM; 256--QAM; BER; EVM; EVM degradation; OFDM; channel quality; error vector magnitude; higher order modulation scheme; link adaptation perspective; mobile systems; resource management; small cell enhancement; spectral efficiency; transmission performance; Bit error rate; Encoding; Interference; OFDM; Quadrature amplitude modulation; Signal to noise ratio; 1024-QAM; 256-QAM; BER; EVM; Link adaptation; Link level simulation; OFDM; Small cell enhancement;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless and Mobile, 2014 IEEE Asia Pacific Conference on

Conference_Location

Bali

Print_ISBN

978-1-4799-3710-3

Type

conf

DOI

10.1109/APWiMob.2014.6920262

Filename

6920262