Decentralized Iterative User Association Method for (p,α)-Proportional Fair-Based System Throughput Maximization in Heterogeneous Cellular Networks

2017 ◽  
Vol E100.B (8) ◽  
pp. 1323-1333 ◽  
Author(s):  
Kenichi HIGUCHI ◽  
Yasuaki YUDA
Keyword(s):  
Cellular Networks ◽  
Throughput Maximization ◽  
System Throughput ◽  
User Association ◽  
Heterogeneous Cellular Networks ◽  
Proportional Fair ◽  
Association Method

scholarly journals Joint User Association and Energy Offloading in Downlink Heterogeneous Cellular Networks

2018 ◽  
Vol 2018 ◽  
pp. 1-9 ◽  
Author(s):  
Rui Li ◽  
Ning Cao ◽  
Minghe Mao ◽  
Yunfei Chen ◽  
Yifan Hu
Keyword(s):  
Power Allocation ◽  
Cellular Networks ◽  
Communication Systems ◽  
System Throughput ◽  
User Association ◽  
Heterogeneous Cellular Networks ◽  
Macro Cell ◽  
System Resource ◽  
Resource Allocation Scheme

As a key technology in Long-Term Evolution-Advanced (LTE-A) mobile communication systems, heterogeneous cellular networks (HCNs) add low-power nodes to offload the traffic from macro cell and therefore improve system throughput performance. In this paper, we investigate a joint user association and resource allocation scheme for orthogonal frequency division multiple access- (OFDMA-) based downlink HCNs for maximizing the energy efficiency and optimizing the system resource. The algorithm is formulated as a nonconvex optimization, with dynamic circuit consumption, limited transmit power, and quality-of-service (QoS) constraints. As a nonlinear fractional problem, an iteration-based algorithm is proposed to decompose the problem into two subproblems, that is, user association and power allocation. For each iteration, we alternatively solve the two subproblems and obtain the optimal user association and power allocation strategies. Numerical results illustrate that the proposed iteration-based algorithm outperforms existing algorithms.

Energy-efficient user association in downlink heterogeneous cellular networks

2016 ◽  
Vol 10 (13) ◽  
pp. 1553-1561 ◽  
Author(s):  
Tianqing Zhou ◽  
Yongming Huang ◽  
Luxi Yang
Keyword(s):  
Cellular Networks ◽  
Energy Efficient ◽  
User Association ◽  
Heterogeneous Cellular Networks
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