联合多分组接收和模糊逻辑控制功率策略

doi:10.11959/j.issn.1000-436x.2015029

摘要/Abstract

摘要：

针对无线网络节约能耗的要求，提出了一种联合多分组接收和模糊逻辑控制功率策略，采用串行干扰消除法，根据无线节点的传输功率等级，将功率等级划分为多分组接收能够正常解码的功率等级，并以任一无线节点到邻接节点的距离、邻接节点的个数和无线节点的剩余能耗为模糊逻辑控制的输入参数来控制各无线节点的功率选择。仿真结果表明，与现有的几种经典的基于功率控制的串行干扰消除算法方案相比，联合多分组接收和模糊逻辑控制功率策略的无线网络具有更大的有效吞吐量及更长的生存时间。

关键词: 多分组接收, 串行干扰消除, 网络优化, 模糊逻辑控制

Abstract:

In order to meet the needs of energy saving in wireless networks,a power control strategy with joint of multi-packet reception and fuzzy logic was proposed.Firstly,based on the power control with successive interference cancellation (SIC),transmission power was divided into several decodable power levels.Secondly,fuzzy logic control algorithm was adopted to select the optimal transmission power for SIC.In addition,three parameters were designed as fuzzy logic control inputs for power selection,which were the distance between transmitters and receivers,the number of neighboring nodes and the residual energy of transmitters.Simulation results show that power control strategy with joint of multi-packet reception and fuzzy logic control not only betters average network throughput than other power control strategy for SIC,but also saves more energy so that the network lifecycle would be significantly extended.

Key words: multi-packet reception, successive interference cancellation, network optimization, fuzzy logic control

韩江洪,胡松华,刘斌,陈振,刘磊. 联合多分组接收和模糊逻辑控制功率策略[J]. 通信学报, 2015, 36(2): 11-19.

Jiang-hong HAN,Song-hua HU,Bin LIU,Zhen CHEN,Lei LIU. Power control strategy with joint of multi-packet reception and fuzzy logic control[J]. Journal on Communications, 2015, 36(2): 11-19.

图/表 10

图1

图2

表1

图3

表2

仿真参数设置"

参数名	参数描述	参数值
N	节点个数	6
P_max	节点最大传输功率	0.1 W
σ²	热噪声	0.000 1 W
β	SINR门限	1
α	路径损耗指数	3
X	传输功率等级	5
$R_{T}^{\max}$	最大传输功率所对应的传输半径	50 m

表2

图4

表3

表4

图5

图6

参考文献 22

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rules	d_i	E_i	ADN_i	C_i
1	far	low	little	big
2	far	low	middle	medium
3	far	low	much	very big
4	far	middle	little	big
5	far	middle	middle	medium
6	far	middle	much	very big
7	far	high	little	medium
8	far	high	middle	big
9	far	high	much	very big
10	medium	low	little	small
11	medium	low	middle	medium
12	medium	low	much	big
13	medium	middle	little	small
14	medium	middle	middle	medium
15	medium	middle	much	big
16	medium	high	little	small
17	medium	high	middle	big
18	medium	high	much	very big
19	near	low	little	very small
20	near	low	middle	small
21	near	low	much	big
22	near	middle	little	very small
23	near	middle	middle	small
24	near	middle	much	big
25	near	high	little	small
26	near	high	middle	medium
27	near	high	much	big

参数	参数值
节点个数	6(1 core node,5 neighboring node)
最大传输距离/m	50
流量类型	CBR(time:1～960 s,packetsize:512 bit,interval:0.1 s)
传输功率等级	5
节点初始能量/J	10
接收功率/W	0.001
空闲功率/W	0.000 5
睡眠功率/W	0
睡眠/空闲转换功率/W	0.000 1
睡眠/空闲转换时间/s	0.005
最大传输功率/W	0.1
仿真时间/s	960

R/m	无线节点	C _i 取值范围	FLC-SIC/W
10	node1	0≤C_i＜0.2	0.051 2
20	node2	0.2≤C_i＜0.4	0.063 4
30	node3	0.4≤C_i＜0.6	0.075 6
40	node4	0.6≤C_i＜0.8	0.087 8
50	node5	0.8≤C_i＜1	0.1

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