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›› 2015, Vol. 32 ›› Issue (5): 661-666.DOI: 10.7523/j.issn.2095-6134.2015.05.012

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A joint resource allocation and ABS power control algorithm with QoS constraints

YU Linhao, LU Hancheng, HONG Peilin   

  1. Information Network Lab, University of Science and Technology of China, Hefei 230027, China
  • Received:2014-09-28 Revised:2015-03-23 Online:2015-09-15

Abstract:

In heterogeneous networks, Macro eNodeBs reduce transmit power on almost blank subframe (ABS) so that Pico cell range expansion(CRE) users could be protected from cross-layer interference. However, few focus on power reduction and user QoS constraints. In this paper, a joint resource allocation and ABS power control algorithm(RA-APC) is proposed. The algorithm is carried out by iterating between RA and APC under user QoS constraints. Simulation results show that the proposed algorithm converges fast and improves overall network utility.

Key words: HetNet, LP-ABS, power control, QoS constraints

CLC Number: