Title :
Proportional fair scheduling in relay enhanced cellular OFDMA systems
Author :
Ahn, Woo-Geun ; Kim, Hyung-Myung
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Korea Adv. Inst. of Sci. & Technol., Daejeon
Abstract :
We propose an efficient proportional fair (PF) scheduling algorithm for multi-user OFDMA systems employing fixed relays. An PF metric maximization problem is first formulated for relay enhanced OFDMA cellular systems. A two-step algorithm is then proposed to solve the problem; the user routing step and the resource allocation step. The simulation results confirm the near-optimal performance of the proposed algorithm in PF sense.
Keywords :
OFDM modulation; cellular radio; frequency division multiple access; resource allocation; scheduling; telecommunication network routing; PF metric maximization problem; multi-user systems; proportional fair scheduling; relay enhanced cellular OFDMA systems; resource allocation step; user routing step; Cellular networks; Interference; Mobile communication; Processor scheduling; Relays; Resource management; Routing; Scheduling algorithm; Signal to noise ratio; Throughput;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2008. PIMRC 2008. IEEE 19th International Symposium on
Conference_Location :
Cannes
Print_ISBN :
978-1-4244-2643-0
Electronic_ISBN :
978-1-4244-2644-7
DOI :
10.1109/PIMRC.2008.4699564
