Paper Info
Title
Coordinated Broadcast-Based Request-Reply And Group Management For Tightly-Coupled Wireless Systems
Abstract
As the domain of cyber-physical systems continues to grow, an increasing number of tightly-coupled distributed applications will be implemented on top of wireless networking technologies. Some of these applications, including collaborative robotic teams, work in a coordinated fashion, whereby a distinguished node takes control decisions and sends commands to other nodes, which in turn perform the requested action/operation and send back a reply/acknowledgment. The implementation of such interactions via reliable point-to-point flows may lead to a significant performance degradation due to collisions, especially when the system operates close to the capacity of the communication channel. We propose a coordinated protocol which exploits the broadcast nature of the wireless medium in order to support this application-level interaction with a minimal number of message transmissions and predictable latency. The protocol also comes with group management functionality, allowing new processes to join and existing processes to leave the group in a controlled way. We evaluate a prototype implementation over WiFi, using a simulated setup as well as a physical testbed. Our results show that the proposed protocol can achieve significantly better performance compared to point-to-point approaches, and remains fully predictable and dependable even when operating close to the wireless channel capacity.
Year
DOI
Venue
2016
10.1109/ICPADS.2016.151
2016 IEEE 22ND INTERNATIONAL CONFERENCE ON PARALLEL AND DISTRIBUTED SYSTEMS (ICPADS)
Keywords
DocType
Volume
request/reply interaction, coordinated protocols, group communication, wireless systems, reliability, predictability, performance
Conference
abs/1606.08277
ISSN
Citations 
PageRank 
1521-9097
2
0.40
References 
Authors
13
2
Name
Order
Citations
PageRank
manos koutsoubelias1145.45
Spyros Lalis220835.55