Title :
Downlink scheduling for intercell interference fluctuation mitigation in partial-loaded broadband cellular OFDMA systems
Author :
Hernández, Ángela ; Guío, Israel ; Valdovinos, Antonio
Author_Institution :
Aragon Inst. for Eng. Res., Univ. of Zaragoza, Zaragoza, Spain
Abstract :
In this paper, we analyze the problem of strong intercell interference (ICI) fluctuations in OFDMA networks with frequency reuse of one and their effects on system performance. Our goal is to outperform fractional frequency reuse scheme by proposing a joint time and frequency resource scheduling algorithm that limits ICI fluctuations both in full and partially loaded scenarios. Adaptive MCS selection according to channel conditions in addition to traffic requirements is considered. Simulation results show that our proposed scheme enhances the system performance and the user satisfaction.
Keywords :
OFDM modulation; broadband networks; fluctuations; intercarrier interference; scheduling; telecommunication traffic; broadband cellular OFDMA systems; channel conditions; downlink scheduling; fluctuation mitigation; frequency resource scheduling; frequency reuse; intercell interference; partially loaded scenarios; traffic requirements; Delay; Downlink; Estimation error; Fluctuations; Interference; Resource management; Scheduling algorithm; Signal to noise ratio; System performance; Telecommunication traffic; Broadband wireless networks; Intercell Interference Management; OFDMA; Scheduling;
Conference_Titel :
Ultra Modern Telecommunications & Workshops, 2009. ICUMT '09. International Conference on
Conference_Location :
St. Petersburg
Print_ISBN :
978-1-4244-3942-3
Electronic_ISBN :
978-1-4244-3941-6
DOI :
10.1109/ICUMT.2009.5345505
