Imperial College London
Portrait Picture

ProfessorPeterPietzuch

Faculty of Engineering, Department of Computing

Professor of Distributed Systems
 
 
 
//

Contact

 

+44 (0)20 7594 8314prp Website

 
 
//

Location

 

442Huxley BuildingSouth Kensington Campus

//

Summary

 

Publications

Citation

BibTex format

@inproceedings{O'Keeffe:2015:10.1109/MILCOM.2015.7357630,
author = {O'Keeffe, D and Salonidis, T and Pietzuch, PR},
doi = {10.1109/MILCOM.2015.7357630},
pages = {1335--1340},
publisher = {IEEE},
title = {Network-Aware Stream Query Processing in Mobile Ad-Hoc Networks},
url = {http://dx.doi.org/10.1109/MILCOM.2015.7357630},
year = {2015}
}
Download

RIS format (EndNote, RefMan)

TY  - CPAPER
AB  - Many real-time decision support and sensing applicationscan be expressed as continuous stream queries overtime-varying data streams, following a data stream managementmodel. We consider the problem of the efficient and resilientexecution of continuous stream queries in tactical edge networksformed from mobile ad-hoc networks (MANETs) withlimited backend connectivity. Previous approaches for distributedstream query execution target data center environments in whichnetworks are static, and centralized control is feasible. Thedistributed, bandwidth-constrained and highly dynamic natureof MANETs render such approaches insufficient—while a streamquery executes in a MANET, changes in the network topologymean that any fixed query plan eventually becomes outdated.We introduce an adaptive, network-aware approach for streamquery planning in MANETs, which supports both single- andmulti-input windowed stream query operators. The basic idea isto increase the path diversity available when executing streamqueries by replicating query operators across many nodes in theMANET. During execution, it becomes possible to dynamicallyswitch between different operator replicas based on connectivityand other network path conditions. We evaluate our approach inemulated MANETs, showing that it can increase substantially therobustness of distributed stream query processing under mobility.
AU  - O'Keeffe,D
AU  - Salonidis,T
AU  - Pietzuch,PR
DO  - 10.1109/MILCOM.2015.7357630
EP  - 1340
PB  - IEEE
PY  - 2015///
SP  - 1335
TI  - Network-Aware Stream Query Processing in Mobile Ad-Hoc Networks
UR  - http://dx.doi.org/10.1109/MILCOM.2015.7357630
UR  - http://hdl.handle.net/10044/1/25857
ER  -
Download