Power Allocation Algorithm of Semi-Blind Interference Alignment Based on Individual Performance

doi:10.13190/j.jbupt.2017.03.003

JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM ›› 2017, Vol. 40 ›› Issue (3): 31-36.doi: 10.13190/j.jbupt.2017.03.003

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Power Allocation Algorithm of Semi-Blind Interference Alignment Based on Individual Performance

YANG Qing¹, JIANG Ting¹, YUAN Jian², ZHOU Zheng¹

1. School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China;
2. Department of Electronic Engineering, Tsinghua University, Beijing 100084, China

Received:2017-01-25 Online:2017-06-28 Published:2017-05-25

Abstract

Abstract: A power allocation algorithm was proposed to improve the power efficiency in semi-blind interference alignment. In the power-limited scenario, the proposed algorithm can improve the overall performance with individual performance guarantee. First, the impact of power allocation on the performance of blind interference alignment was analyzed. Second, the model of semi-blind interference alignment in the limited-power scenario is built and the optimal objective was proposed to maximize the transmission rate with individual performance guarantee. Finally, the retrospective gradient descent scheme based power allocation algorithm was designed and analyzed. Extensive simulations demonstrate that the performance of the proposed algorithm is about 53% higher than the average power allocation scheme.

Key words: semi-blind interference alignment, individual performance, power allocation, feedback

CLC Number:

TN911.7

YANG Qing, JIANG Ting, YUAN Jian, ZHOU Zheng. Power Allocation Algorithm of Semi-Blind Interference Alignment Based on Individual Performance[J]. JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM, 2017, 40(3): 31-36.

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Power Allocation Algorithm of Semi-Blind Interference Alignment Based on Individual Performance

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