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A new asymptotic analysis of throughput enhancement from selection diversity using a high SNR approach in multiuser systems

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4 Author(s)
Woohyun Seo ; Information and Telecommunication Lab., Dept. of Electrical and Electronic Eng., Yonsei Univ., Seoul, Korea ; Hyungjoon Song ; Jemin Lee ; Daesik Hong

This letter presents our study of throughput enhancement achieved by multiuser diversity (MUDiv) in a multiuser system using a new asymptotic approach. The MUDiv gain is evaluated by deriving a new asymptotic formula with a closed form, which is flexible to the number of MUDiv orders. To do this, we simplify a Puiseux series instead of a extreme value theory used in the previous researches. The formula shows that the MUDiv gain is independent of the signal-to-noise ratio, and it is applied to analyze proportional fair scheduling. Finally, this analysis is verified using Monte-Carlo simulations of scheduling algorithms.

Published in:

IEEE Transactions on Wireless Communications  (Volume:8 ,  Issue: 1 )