UDN Coordination Beamforming with Transceiver Radio Frequency Impairments

doi:10.13190/j.jbupt.2016.05.003

JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM ›› 2016, Vol. 39 ›› Issue (5): 11-15.doi: 10.13190/j.jbupt.2016.05.003

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UDN Coordination Beamforming with Transceiver Radio Frequency Impairments

FANG Zheng¹, LI Hai-tao², ZHU Guang², LI Yan²

1. Science and Technology on Avionics Integration Laboratory, Shanghai 200241, China;
2. College of Electronic Information and Control Engineering, Beijing University of Technology, Beijing 100124, China

Received:2015-01-01 Online:2016-10-28 Published:2016-12-02

Abstract

Abstract: The coordination beamforming scheme with transceiver radio frequency impairments was proposed to improve the performance of ultra-dense wireless network (UDN). Firstly, the coordination beamforming model based on the residual radio frequency impairments is presented, and the convex optimization algorithm is utilized to achieve the optimal solution. Then, considering the limitations of the implementation of the optimal beamformer, the signal leakage noise ratio based the linear suboptimal beamformer is designed by beamforming steering vector and optimal power allocation. Simulations show that the proposed suboptimal beamformer with radio frequency impairments can effectively reduce interference and improve the sum rate of UDN.

Key words: coordination beamforming, sum rate, radio frequency impairments, convex optimization

CLC Number:

TN92

FANG Zheng, LI Hai-tao, ZHU Guang, LI Yan. UDN Coordination Beamforming with Transceiver Radio Frequency Impairments[J]. JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM, 2016, 39(5): 11-15.

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UDN Coordination Beamforming with Transceiver Radio Frequency Impairments

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