延迟容忍传感器网络中基于移动协助的数据传输

doi:10.3969/j.issn.1000-436x.2014.10.021

Abstract

Abstract:

A novel data delivery method named movement-assisted adaptive data delivery (MAD) was proposed.The data cache nodes were deployed in the buffer and the base station moves in the buffer regularly.The data was forwarded to the nodes which likely moved to the buffer and had the higher remaining energy,and the base station collects data in the moving process.MAD contains two parts,data forwarding and queue management.The former makes the decision by the movement trend and the residual energy.The latter was based on the size of the survival time and the replication.Simulation results show that MAD had relatively higher delivery ratio and longer network lifetime.

Key words: delay tolerant mobile sensor networks, data gathering, movement-assisted;, dynamic data delivery

Hui-jie LI,Jian PENG,Tang LIU. Movement-assisted data delivery for delay tolerant mobile sensor networks[J]. Journal on Communications, 2014, 35(10): 181-191.

Figures/Tables 14

参数名	参数值	参数描述
R	113 m	网络半径
d	1～10 m	传感器节点的通信半径
R_n	82.8 m	缓仲区的外径
R_m	76.8 m	缓仲区的内径
N	300	收集节点数量
VCollect	1～5 m/s	收集节点的速度
V_Sink	3 m/s	基站的移动速度
$E_{\ln i t}^{C o l l e c t}$	10 J	收集节点的初始能量
L	200	节点队列长度
l	200 bit	每个消息的大小
E_elec	5 nJ/bit	射频能耗系数
ε_fs	10 pJ/bit/m²	功率放大电路能耗系数(d≤d₀)
ε_mp	0.001 3 pJ/bit/m⁴	功率放大电路能耗系数(d＞d₀)

References 18

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网络性能	MAD	SRAD	SARM	Flooding
网络寿命/天	1.893	1.537	1.712	0.479
传输成功率/%	83.1	68.3	74.8	55.4
平均副本	8.57	9.07	8.71	11.83
平均延时/s	281.2	198.7	176.2	780.8

Movement-assisted data delivery for delay tolerant mobile sensor networks

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