Performance evaluation of subcarrier allocation methods for OFDMA

Author

Manea, Oana C. ; Craciunescu, Razvan E. ; Halunga, Simona V. ; Voicu, Cristiana ; Preda, Radu Ovidiu

Author_Institution

Electron., Telecommun. & Inf. Technol. Fac., Univ. Politeh. of Bucharest, Bucharest, Romania

fYear

2013

fDate

26-28 Nov. 2013

Firstpage

260

Lastpage

263

Abstract

The purpose of this paper is to analyze performances of three subcarrier allocation methods used by orthogonal frequency-division multiple access (OFDMA). In OFDMA, before assigning subcarriers to users, they are first distributed into subchannels using three different subcarrier allocation methods. The results are compared in terms of bit error rate (BER) dependency on signal to noise ratio (SNR), for different multipath propagation channels, for a variable number of users and for different digital modulation schemes.

Keywords

OFDM modulation; channel allocation; error statistics; frequency division multiple access; multipath channels; radiowave propagation; BER; OFDMA; SNR; bit error rate; digital modulation scheme; multipath propagation channel; orthogonal frequency division multiple access; signal to noise ratio; subcarrier allocation method; Bit error rate; Delays; OFDM; Phase shift keying; Resource management; Signal to noise ratio; AMC; FUSC; OFDM; PUSC; subcarrier allocation;

fLanguage

English

Publisher

ieee

Conference_Titel

Telecommunications Forum (TELFOR), 2013 21st

Conference_Location

Belgrade

Print_ISBN

978-1-4799-1419-7

Type

conf

DOI

10.1109/TELFOR.2013.6716221

Filename

6716221