TY - GEN
T1 - Validity region sensitive query processing strategies in mobile ad hoc networks
AU - Jung, Byungkwan
AU - Lim, Sunho
AU - Chae, Jinseok
AU - Pu, Cong
N1 - Publisher Copyright:
© 2016 IEEE.
PY - 2016/12/22
Y1 - 2016/12/22
N2 - Due to the lack of centralized coordination and time-varying network topologies, designing an efficient query processing scheme is admittedly challenging in mobile ad hoc networks (MANETs). Each node often broadcasts a query, retrieves its queried data item, and periodically checks its freshness but a non-negligible communication overhead may incur. In tight of this, we propose a set of query processing strategies by deploying a validity region to efficiently minimis the query traffic and update the freshness of the queried data. We first investigate simple rectangle and convex hull based validity regions and their corresponding query processing schemes, and then extend them by adaptively combining both techniques and considering an opportunistic overhearing. We conduct extensive simulation experiments using the OMNYT++ simulation package for performance comparison and analysis, in which an infrastructure-based query processing approach is also adjusted to be implemented in MANETs. The simulation results indicate that our convex hull based adaptive query processing approaches can reduce the number of queries but it increases the time spent in the validity region.
AB - Due to the lack of centralized coordination and time-varying network topologies, designing an efficient query processing scheme is admittedly challenging in mobile ad hoc networks (MANETs). Each node often broadcasts a query, retrieves its queried data item, and periodically checks its freshness but a non-negligible communication overhead may incur. In tight of this, we propose a set of query processing strategies by deploying a validity region to efficiently minimis the query traffic and update the freshness of the queried data. We first investigate simple rectangle and convex hull based validity regions and their corresponding query processing schemes, and then extend them by adaptively combining both techniques and considering an opportunistic overhearing. We conduct extensive simulation experiments using the OMNYT++ simulation package for performance comparison and analysis, in which an infrastructure-based query processing approach is also adjusted to be implemented in MANETs. The simulation results indicate that our convex hull based adaptive query processing approaches can reduce the number of queries but it increases the time spent in the validity region.
KW - Mobile ad hoc networks
KW - query processing
KW - validity region
UR - http://www.scopus.com/inward/record.url?scp=85011918331&partnerID=8YFLogxK
U2 - 10.1109/MILCOM.2016.7795464
DO - 10.1109/MILCOM.2016.7795464
M3 - Conference contribution
AN - SCOPUS:85011918331
T3 - Proceedings - IEEE Military Communications Conference MILCOM
SP - 1022
EP - 1027
BT - MILCOM 2016 - 2016 IEEE Military Communications Conference
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 35th IEEE Military Communications Conference, MILCOM 2016
Y2 - 1 November 2016 through 3 November 2016
ER -