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Performance of Frequency Planning and Channel Allocation Algorithm for Unified Inter-Cell Interference Avoidance and Cancellation in OFDMA Cellular Systems  

Lee, Jae-Hoon (한양대학교 전자전기제어계측공학과 이동통신망연구실)
Kim, Dong-Woo (한양대학교 전자컴퓨터공학부)
Lee, Hee-Soo (한국전자통신연구원 방송통신융합연구부문 이동통신연구본부)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.34, no.2A, 2009 , pp. 99-106 More about this Journal
Abstract
In this paper, we propose UCA algorithms that are applied to the unified inter-cell interference mitigation through frequency plannings in OFDMA cellular systems. Under three frequency plannings, UCA algorithms allocate frequency channels to UEs(User Equipments). Proposed UCA algorithms require the information of received signal power from home sector and neighbor sectors respectively. We compare all possible combinations of UCA algorithms and frequency plannings through compute simulation. A primary performance measure is the low 5th percentile of SINR at UEs. The proposed UCA algorithms can avoid the interference to neighbor cells by allocating relatively low transmit power to centrally-located UEs and cancel inter-cell interference at cell-edge UEs by a coordinated symbol repetition. We show that UCA algorithm 2 applied in frequency planning 1 is promising among other combinations of UCA algorithms and frequency palnnings in terms of the low 5th percentile of SINR at UEs.
Keywords
OFDMA; Inter-Cell Interference; Channel Allocation; Frequency Planning; Interference Avoidance; Interference Cancellation;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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