基于概率感知模型的线性无线传感网络可靠性分析.pdf
计算机系统应用
ISSN
1003-3254,
CODEN
CSAOBNE-mail:
csa@
Computer
Systems
Applications,2024,33(9):183−191
[doi:
10.15888/ki.csa.009625]
©中国科学院软件研究所版权所有.Tel:
+86-10
基于概率感知模型的线性无线传感网络可靠性
分析①
李兆,
贾正锋,
杨海波
(沈阳工业大学
信息科学与工程学院,
沈阳
110870)
通信作者:
杨海波,
E-mail:
yanghb@
摘要:
线性无线传感网络(linear
wireless
sensor
network,
LWSN)广泛应用于监测铁路、天然气管道等线性拓扑
的关键基础设施,
其可靠性至关重要,
其中覆盖率是衡量可靠性的重要指标.
目前在评估LWSN覆盖率的方法大多
采用0/1圆盘感知模型,
但实际中传感器的监测可靠性随着覆盖半径增加呈概率分布.
因此,
提出了一种基于概率
感知模型的可靠性分析方法,
该模型可根据传感器的物理参数计算其有效感知范围,
进而提升了评估的准确性.
为
减小系统状态空间的大小,
采用二元决策树构造LWSN的系统状态集合.
本文假设节点的故障概率符合Weibull
分布并针对不同通信半径和感知范围进行仿真实验,
结果表明该方法可以有效地对LWSN的可靠性进行评估,
评
估准确率相比0/1圆盘感知模型更精准.
关键词:
线性无线传感网络(LWSN);
可靠性;
概率感知模型;
二元决策树;
Weibull分布
引用格式:
李兆,贾正锋,杨海波.基于概率感知模型的线性无线传感网络可靠性分析.计算机系统应用,2024,33(9):183–191.
.
cn/1003-3254/9625.html
ReliabilityAnalysisofLinearWirelessSensorNetworkBasedonProbabilisticSensingModel
LI
Zhao,
JIA
Zheng-Feng,
YANG
Hai-Bo
(School
of
Information
Science
and
Engineering,
Shenyang
University
of
Technology,
Shenyang
110870,
China)
Abstract:
Linear
wireless
sensor
network
(LWSN)
is
widely
used
to
monitor
key
infrastructure
in
linear
topology
such
as
railways
and
natural
gas
pipelines,
whose
reliability
is
very
important,
and
coverage
is
an
important
indicator
to
measure
reliability.
Currently,
most
methods
for
evaluating
the
LWSN
coverage
are
based
on
a
0/1
disk
sensing
model,
but
in
practice,
the
monitoring
reliability
of
sensors
follows
a
probability
distribution
with
the
increase
of
coverage
radius.
Therefore,
a
reliability
analysis
method
based
on
a
probabilistic
sensing
model
is
proposed,
which
can
calculate
the
effective
sensing
range
based
on
the
physical
parameters
of
sensors,
thereby
improving
the
accuracy
of
evaluation.
To
red