Aggressive Subchannel Allocation Algorithm for Optimize Transmission Efficiency Among Users in Multiuser OFDMA System 


Vol. 31,  No. 6, pp. 617-626, Jun.  2006


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  Abstract

In this paper, we propose an ASA(Aggressive Subchannel Allocation) algorithm, which is an effective dynamic channel allocation algorithm considering all user's channel state to maximize downlink sector throughput in OFDMA system. We compare an ASA algorithm with Round Robin, ACG(Amplitude Craving Greedy), RCG(Rate Craving Greedy) and GPF(General Proportional Fair) in the 2-tier environment of FRF(Frequency Reuse Factor) 1 and then analyze the performance of each algorithms, through compute simulation. Simulation results show that the proposed ASA algorithm gets 58 %, 190 %, 130 % and 8.5 % better sector throughput compared with the Round Robin, ACG, RCG and GPF respectively.

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  Cite this article

[IEEE Style]

S. Ko, J. Heo, K. Chang, "Aggressive Subchannel Allocation Algorithm for Optimize Transmission Efficiency Among Users in Multiuser OFDMA System," The Journal of Korean Institute of Communications and Information Sciences, vol. 31, no. 6, pp. 617-626, 2006. DOI: .

[ACM Style]

SangJun Ko, Joo Heo, and KyungHi Chang. 2006. Aggressive Subchannel Allocation Algorithm for Optimize Transmission Efficiency Among Users in Multiuser OFDMA System. The Journal of Korean Institute of Communications and Information Sciences, 31, 6, (2006), 617-626. DOI: .

[KICS Style]

SangJun Ko, Joo Heo, KyungHi Chang, "Aggressive Subchannel Allocation Algorithm for Optimize Transmission Efficiency Among Users in Multiuser OFDMA System," The Journal of Korean Institute of Communications and Information Sciences, vol. 31, no. 6, pp. 617-626, 6. 2006.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880