x

1. xxi
LIST OF ABBREVIATIONS & SYMBOLS
ABBREVIATIONS
IoT - Internet of Things
WSN - Wireless Sensor Network
WSAN - Wireless Sensor Actuator network
LED - Light Emitting Diode
LM - Linear Monolithic
DHT - Digital Humidity Temperature
LDR - Light Dependent Resistor
MQTT - Message Queuing Telemetry and Transport
GSN - Global Sensor Network
SSW - Semantic Sensor Web
IrisNet - Internet-scale Resource-Intensive Sensor Network
Services
LoWPAN - Low-Rate Wireless Personal Area Networks
Minos - Message Identification and Online Storage
Desthino - Distributed Embedded Systems Online
IPSO - IP Smart Objects
CoAP - Constrained Application Protocol
FIT - Future Internet Testing
IoT-GSI - Global Standards Initiative on Internet of Things
PWM - Pulse Width Modulation
HTTP - Hyper Text Transfer Protocol
HTTPS - Hyper Text Transfer Protocol Secure

2. xxii
FTP File Transfer Protocol
IETF - Internet Engineering Task Force
IBM - International Business Machines
UDP - User Datagram Protocol
TCP - Transmission Control Protocol
DTLS - Datagram Transport Layer Security
TLS - Transport Layer Security
SSL - Secure Socket Layer
XML - Extensible Markup Language
JSON - JavaScript Object Notation
CSV - Comma Separated Variable
REST - REpresentational State Transfer
GSM - Global System for Mobile
RGB - Red Green Blue
ID - Identification
OS - Operating System
UI - User Interface
PHP - Personal Home Page
DB - Database
XAMPP - Cross-Platform Apache MySQL PHP Perl
IP - Internet Protocol
DNS - Domain Name System
ESP - Espresiff Systems
SMS - Short Message Service
USB - Universal Serial Bus
IPv4 - Internet Protocol Version 4

3. xxiii
IPv6 - Internet Protocol Version 6
QoS - Quality of Service
CPU - Central Processing Unit
LCD - Liquid Crystal Display
SIM - Subscriber Identification Module
IDE - Integrated Development Environment
POSIX - Portable Operating System Interface
ASPI - Advanced Small Computer System Interface
Programming Interface
MBPS
µIP
µIPv6
- Mega Bits Per Second
Micro Internet Protocol
Micro Internet Protocol version 6
ith sensor service, i ∈ 1 to n
jth parameter of each sensor, j ∈ 1 to m
ith Actuator, i ∈ 1 to n
jth
instance of Ai, j ∈ 1 to m
ith Platform, i ∈ 1 to n
Time between failures
Time to restore
At least one successful resource
Failure with degrading or nil available resource
Number of platforms offered for service
Academician, i ∈ 1 to n
Industrialist, i ∈ 1 to n
SYMBOLS
Si -
Pj -
Ai -
Kj -
Pli -
ti -
tj -
S -
F -
N -
Aci -
Ii -

4. xxiv
Di - Data analyst, i ∈ 1 to n
Ri - Researcher, i ∈ 1 to n
Ni - Novice user, i ∈ 1 to n
R - Reliability
P′ - Performance
L - Low
M - Medium
H - High
P(R=ri,P′
=Pi
′
) - Probability that R takes ri and P′
takes pi
′
, i=l,m,h
P(ri,pi
′
) - Probability mass function, i=l,m,h
PR(ri) - Marginal probability function of reliability R, i=l,m,h
(ri,pio) - Marginal distribution of reliability
(rio,p′i) - Marginal distribution of performance
PP
′
(pi
′
) - Marginal probability function of performance, i=l,m,h
f(R,P′)/f(P′=low) - Conditional distribution of reliability, P′=low
f(R,P′)/f(P′=medium) - Conditional distribution of reliability P′=medium
Tl - f(P′
=low)
Tm - f(P′
=medium)