吉林大学学报(工学版) ›› 2016, Vol. 46 ›› Issue (4): 1320-1324.doi: 10.13229/j.cnki.jdxbgxb201604043

• Orginal Article • Previous Articles     Next Articles

Imperfect channel state information based D2D power allocation algorithm

MA Bei, ZHANG Hai-lin, ZHANG Zhao-wei, ZHONG Ming   

  1. State Key Laboratory of Integrated Services Networks, Xidian University, Xi'an 710071, China
  • Received:2014-12-17 Online:2016-07-20 Published:2016-07-20

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Abstract: An optimal power allocation algorithm is developed for cellular and Device-to-Device (D2D) hybrid network, where the Channel State Information (CSI) is imperfect. The obtained power solution is a simple but solid closed-form using the Lagrange multiplier method. The proposed power allocation algorithm is more robust to the CSI as compared with the traditional maximum transmit power allocation scheme. Simulation results show that the proposed algorithm can obtain higher received Signal-to-Noise Ratio (SNR) than that obtained using traditional power allocation scheme.

Key words: communications, device-to-detive(D2D), imperfect channel state information, power allocation, robustness

CLC Number: 

  • TN915
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