Title :
Adaptive Fractional Time Reuse for Multi-Cell OFDMA Networks
Author :
Yun Hee Cho ; Seok Seo ; Jae-su Song ; Seung-Hwan Lee ; Lee, Hwang Soo
Author_Institution :
Dept. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol. (KAIST), Daejeon, South Korea
Abstract :
In this letter, we focus on an inter-cell time-domain resource partitioning that adapts to time varying user distribution and traffic loads for multi-cell OFDMA networks. We propose an adaptive fractional time reuse (FTR) scheme that combines reuse 1, soft FTR, and an inter-cell time-domain resource partitioning algorithm in conjunction with intra-cell user scheduling to maximize the network-wide performance. Through intensive simulations, we show that the proposed adaptive FTR significantly improves the 5th percentile average throughput while sustaining the geometric average throughput.
Keywords :
4G mobile communication; OFDM modulation; cellular radio; frequency division multiple access; geometry; scheduling; telecommunication traffic; 4G cellular standards; adaptive FTR; adaptive fractional time reuse scheme; geometric average throughput; intercell time-domain resource partitioning algorithm; intracell user scheduling; load balancing; multicell OFDMA networks; network-wide performance maximization; percentile average throughput; time varying user distribution; traffic loads; Adaptive systems; Dynamic scheduling; Interference; OFDM; Throughput; Time-domain analysis; Inter cell interference coordination (ICIC); fractional time reuse; load balancing; user scheduling;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2013.072313.131230
