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Opportunistic Power Control for Successive Interference Cancellation

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2 Author(s)
Yong-Up Jang ; Inst. for Inf. Technol. Convergence, KAIST, Daejeon, South Korea ; Eui-Rim Jeong

This letter proposes an opportunistic power control for increasing the transmission rate of a secondary transmitter (ST) in frequency reused scenario. The environments considered herein have multiple primary transmitter/receiver pairs and one secondary transmitter/receiver pair using the same frequency band. In this scenario, we develop the opportunistic power control method for assisting successive interference cancellation (SIC) and optimal SIC order. Simulation results show that the proposed method improves the ST transmission rate significantly when compared to the method with no power control, and it exhibits a small throughput loss compared to the optimal technique while offering simpler implementation and using less transmission power.

Published in:

Communications Letters, IEEE  (Volume:15 ,  Issue: 3 )