DocumentCode :
2821452
Title :
A Hybrid Inter-cell Interference Mitigation Scheme for OFDMA based E-UTRA Downlink
Author :
Zhu, Jianchi ; Liu, Guangyi ; Wang, Ying ; Zhang, Ping
Author_Institution :
WTI Inst., Beijing Univ. of Posts & Telecommun.
fYear :
2006
fDate :
Aug. 2006
Firstpage :
1
Lastpage :
5
Abstract :
For the evolved UTRA (EUTRA), cell edge bit-rate and system throughput become important criteria for the evaluation of the system proposals and requirements on the system performance. Inter-cell interference is the main source of performance degradation for OFDM, especially the data rate of cell edge UEs is severely limited. Many inter-cell interference mitigation schemes are proposed to improve the EUTRA performance, especially the active coordination in the frequency domain resource allocation between neighboring cells. But they can´t achieve robust performance for system throughput and cell edge bit rate when the traffic load varies much. In this paper a hybrid inter-cell interference mitigation scheme (HICIM) is proposed, which is a trade-off between system throughput and cell-edge UE performance. From the simulation results when proportional fairness (PF) scheduling is adopted in single input and single output (SISO) environment, the proposed HICIM scheme achieves robust performance of both system throughput and cell-edge UE performance for both high system load and low system load
Keywords :
3G mobile communication; OFDM modulation; cellular radio; frequency division multiple access; interference suppression; radio access networks; scheduling; telecommunication traffic; HICIM scheme; OFDMA; SISO; UMTS terrestrial radio access; Universal Mobile Telecommunication System; cell-edge UE performance; evolved E-UTRA downlink; hybrid intercell interference mitigation; orthogonal frequency division multiple access; proportional fairness scheduling; single input and single output; system throughput; traffic load; Degradation; Downlink; Frequency domain analysis; Interference; OFDM; Proposals; Resource management; Robustness; System performance; Throughput; E-UTRA; HICIM; OFDM; inter-cell interference; interference mitigation;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Communications, 2006. APCC '06. Asia-Pacific Conference on
Conference_Location :
Busan
Print_ISBN :
1-4244-0574-2
Electronic_ISBN :
1-4244-0574-2
Type :
conf
DOI :
10.1109/APCC.2006.255780
Filename :
4023085
Link To Document :
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