Journal of Beijing University of Posts and Telecommunications

  • EI核心期刊

JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM ›› 2019, Vol. 42 ›› Issue (1): 87-92.doi: 10.13190/j.jbupt.2018-146

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Investigation on Spectral Aware Resource Allocation Technology Based on Spatial Channel Controlling

XIE Chao-chen1, TAN Xiao-heng1,2, LIU Qin1, YANG Zhi-jun1, LIU Yu-chuan1   

  1. 1. College of Microelectronics and Communication Engineering, Chongqing University, Chongqing 400044, China;
    2. Chongqing Key Laboratory of Bio-Perception and Intelligent Information Processing, Chongqing 400044, China
  • Received:2018-07-07 Online:2019-02-28 Published:2019-03-08
  • Supported by:
     

Abstract: Aiming at problem of lower utilization the authorized spectrum, due to channel quality and transmission power interference, a resource allocation technology was proposed based on the large scale antenna spatial channel controlling. Main lobes beam of multiple antenna beam forming points to the desired user and places the nulls in the interference direction, which can effectively suppress interference to secondary users and ensure that aware spectrum is used. As a result, the utilization ratio of frequency spectrum increased further in the whole system. The simulation results showed the throughput of the proposed method is better than the scheme in the literatures when signal to noise ratio is 5 dB and 10 dB.

Key words: aware spectrum, authorized spectrum, interference, spatial channel controlling

CLC Number: