Title :
Novel time-frequency reservation Aloha scheme for OFDMA systems
Author :
Yaacoub, Elias ; Al-Alaoui, Mohamad Adnan ; Dawy, Zaher
Author_Institution :
QU Wireless Innovations Center (QUWIC), Doha, Qatar
Abstract :
A novel reservation Aloha scheme is presented for OFDMA systems. The proposed scheme is based on two dimensional reservation in time and frequency. The proposed approach is compared to other OFDMA extensions of reservation Aloha. The proposed scheme is shown to be superior in terms of increasing sum-rate, reducing the number of users in outage, and reducing the collision probability in the reservation phase.
Keywords :
OFDM modulation; access protocols; frequency division multiple access; OFDMA systems; collision probability reduction; time frequency reservation Aloha scheme; two dimensional reservation; Frequency division multiaccess; OFDM; Phase shift keying; Signal to noise ratio; Stability analysis; Time division multiple access; Time frequency analysis; OFDMA; opportunistic transmission; probabilistic scheduling; reservation Aloha;
Conference_Titel :
Wireless Communications and Networking Conference (WCNC), 2011 IEEE
Conference_Location :
Cancun, Quintana Roo
Print_ISBN :
978-1-61284-255-4
DOI :
10.1109/WCNC.2011.5779130
