Paper Info
Title
An Optimized Relay Selection Technique to Improve the Communication Reliability in Wireless Sensor Networks.
Abstract
Wireless Sensor Networks (WSN) are enabler technologies for the implementation of the Internet of Things (IoT) concept. WSNs provide an adequate infrastructure for the last-link communication with smart objects. Nevertheless, the wireless communication medium being inherently unreliable, there is the need to increase its communication reliability. Techniques based on the use of cooperative communication concepts are one of the ways to achieve this target. Within cooperative communication techniques, nodes selected as relays transmit not only their own data, but also cooperate by retransmitting data from other nodes. A fundamental step to improve the communication reliability of WSNs is related to the use of efficient relay selection techniques. This paper proposes a relay selection technique based on multiple criteria to select the smallest number of relay nodes and, at the same time, to ensure an adequate operation of the network. Additionally, two relay updating schemes are also investigated, defining periodic and adaptive updating policies. The simulation results show that both proposed schemes, named Periodic Relay Selection and Adaptive Relay Selection, significantly improve the communication reliability of the network, when compared to other state-of-the-art relay selection schemes.
Year
DOI
Venue
2018
10.3390/s18103263
SENSORS
Keywords
Field
DocType
relay selection,cooperative diversity,cooperative communication,wireless sensor network,WSN
Electronic engineering,Engineering,Wireless sensor network,Relay
Journal
Volume
Issue
ISSN
18
10.0
1424-8220
Citations 
PageRank 
References 
1
0.36
18
Authors
5
Name
Order
Citations
PageRank
Suelen Laurindo111.04
Ricardo Moraes212517.58
Ríad Nassiffe310.36
Carlos Montez415625.48
F. Vasques547658.57