Acta Metallurgica Sinica(English letters) ›› 2014, Vol. 21 ›› Issue (1): 74-78.doi: 10.1016/S1005-8885(14)60271-5

• Networks • Previous Articles     Next Articles

Clustering and scheduling methods based on SLNR in downlink CoMP system


  1. School of Telecommunication Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China
  • Received:2013-06-13 Revised:2013-12-05 Online:2014-02-28 Published:2014-02-28
  • Contact: Xuguang WU
  • Supported by:

    This work was supported by the National Natural Science Foundation of China for Young Scholar (61001115), the National Natural Science Foundation of China (61271182), and the Fundamental Research Funds for the Central Universities of China (2012RC0126).


In downlink coordinated multi-point (CoMP) system, full cooperation is always not applicable in real world because of its high request in the backhaul. To deal with this problem, clustering decision is made to process transmission. In this paper clustering methods based on the metric signal-to-leakage-plus-noise (SLNR) is proposed. In addition, user scheduling schemes based on SLNR is also put up to make the scheduling set as large as possible. Simulation results show that the proposed clustering methods not only reduce the data sharing among the cooperating base stations (BSs), but also improve the system throughput compared with the traditional clustering methods based on channel strength.

Key words:

CoMP, clustering formation, SLNR, user scheduling

CLC Number: