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Table 2 Definition of notations

From: Anti-traffic analysis attack for location privacy in WSNs

Parameter

Meanings

RDM

Real data message

FDM

Fake data message

H(i)

Number of kids node i has

m(i)

Number of fake messages generated by node i

ρ

The (average) generation rate of RDM messages per unit of time each node generates

X × Y

2 dimensional deployment area (m)

Real sink

Rs

Fake sink

Fs

r 1

Sensors' communication range

x (i), y (i)

Location of a node i or a sink i

N

Total number of nodes in the network

TPN1

Largest amount of traffic volume among the traffic volumes generated by the real sink's neighbors

TPNϵ+ 1

Largest amount of traffic volume in the traffic volumes generated by nodes from (ϵ + 1) hops from the real sink

hop (i)

Number of hops forming the routing path from node i to the real sink

h max

Size of the longest routing path from a source to real sink that is formed over the WSN

Φ(i, j)

Number of hops from node i to the fake sink j

Ω(k, j)

Number of hops from a sink k to sink j