同频异构femtocell联合子信道和功率分配算法

doi:10.11959/j.issn.1000-0801.2015236

电信科学 ›› 2015, Vol. 31 ›› Issue (9): 20-27.doi: 10.11959/j.issn.1000-0801.2015236

同频异构femtocell联合子信道和功率分配算法

陈赓¹,姚文静¹,郭银景¹,夏玮玮²

¹ 山东科技大学电子通信与物理学院青岛266590
² 东南大学移动通信国家重点实验室南京210096

出版日期:2015-09-15 发布日期:2015-10-19
基金资助:
国家自然科学基金资助项目;国家自然科学基金资助项目;国家自然科学基金资助项目;山东科技大学人才引进科研启动基金资助项目

A Joint Sub-Channel and Power Allocation Algorithm in Co-Channel Heterogeneous Femtocell Network

Geng Chen¹,Wenjing Yao¹,Yinjing Guo¹,Weiwei Xia²

¹ College of Electronic, Communication and Physics, Shandong University of Science and Technology, Qingdao 266590, China
² National Mobile Communications Research Laboratory, Southeast University, Nanjing 210096, China

Online:2015-09-15 Published:2015-10-19
Supported by:
The National Natural Science Foundation of China;The National Natural Science Foundation of China;The National Natural Science Foundation of China;The Scientific Research Foundation of Shandong University of Science and Technology for Recruited Talents

摘要/Abstract

摘要：

摘要：针对macro-femto同频融合网络中基于资源分配的干扰抑制问题，提出一种联合子信道和功率分配算法来抑制同频干扰。该算法通过对MU进行功率控制并采用跨层切换消除同频跨层干扰，对FU进行联合信道和功率分配消除同频层内干扰；跨层切换问题是在每一层网络目标中断概率约束下通过优化网络吞吐量实现，而基于联合信道和功率分配的同频干扰抑制问题是在切换MU的目标数据速率和其他MU以及FU干扰门限约束下，通过优化FU的和速率实现。理论分析和仿真结果表明，该算法能够提高FU的和速率，增大femtocell的网络容量，并可增加femtocell的部署数目。

关键词: 同频融合网络, 子信道分配, 功率分配, 同频干扰抑制

Abstract:

A joint sub-channel and power allocation algorithm was proposed to suppress co-channel interference. Power control and handover mechanism could be used to suppress the co-channel cross-tier and intra-tier interference achieved by the power allocation for MU and joint sub-channel and power allocation for FU. Mathematically, the cross-tier handover was formulated as optimizing the network throughput under the constraints of each tier target outage probability and the interference-aware resource allocation was formulated as optimizing the sum rate of FU subject to the constraints of the target data rate of handover MU and interference thresholds to other MU and FU. Theoretical analysis and simulation results show that the sum rate of FU can be increased greatly. Meanwhile, the femtocell network capacity and the number of deployable femtocells can also be improved.

Key words: co-channel integrated network, sub-channel allocation, power allocation, co-channel interference suppression

陈赓,姚文静,郭银景,夏玮玮. 同频异构femtocell联合子信道和功率分配算法[J]. 电信科学, 2015, 31(9): 20-27.

Geng Chen,Wenjing Yao,Yinjing Guo,Weiwei Xia. A Joint Sub-Channel and Power Allocation Algorithm in Co-Channel Heterogeneous Femtocell Network[J]. Telecommunications Science, 2015, 31(9): 20-27.

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参考文献 17

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参数	取值	参数	取值
d_0c	100 m	d_0f	5m
a	4	β	2
σ_dB	4 dB	L	0.8
P_rc	1	P_rf	10
P_M	20	P_F	15
γ_M	2	γ_F	4
W	0～50 MHz	B	1 MHz
R_c	500 m	R_f	20 m
N	0～50,10	M,U_f	0～40,10
K,N_f	0～50,20	σ²,BN₀	2 dB
U_c,N_c	2	r₀	0.5 Mbit/s
δ_nM	1	δ_nF	1
r_M	0.5 Mbit/s	r_F	1 Mbit/s

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同频异构femtocell联合子信道和功率分配算法

A Joint Sub-Channel and Power Allocation Algorithm in Co-Channel Heterogeneous Femtocell Network

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