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期刊论文
Maximum-Likelihood Subchannel Detection in Forward Links for Multicarrier DS CDMA System
IEICE TRANS. COMMUN., VOL.E84-B, NO.11 NOVEMBER 2001,-0001,():
In this paper, we consider the subchannel detection problem in forward links for the multicarrier DS-CDMA system when some different subchannel allocation policies are used. An optimal subchannel decision algorithm is proposed based on the maximum-likelihood (ML) criterion. Theoretical analysis and simulation results are presented. Furthermore, we discuss the parameter selection problem on the length of the training sequences in the subchannel allocation scheme in [8], [12] by using the proposed ML detection algorithm. The results show that the subchannel allocation scheme in [8], [12] is feasible since only a few symbols overhead is required.
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