Title :
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
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;
Conference_Titel :
Telecommunications Forum (TELFOR), 2013 21st
Conference_Location :
Belgrade
Print_ISBN :
978-1-4799-1419-7
DOI :
10.1109/TELFOR.2013.6716221
