%0 Conference Paper %1 yarvis2005exploiting %A Yarvis, M. %A Kushalnagar, N. %A Singh, H. %A Rangarajan, A. %A Liu, Y. %A Singh, S. %B Proceedings IEEE 24th Annual Joint Conference of the IEEE Computer and Communications Societies. %D 2005 %I IEEE %K heterogeneity sensor %P 878--890 %R 10.1109/INFCOM.2005.1498318 %T Exploiting heterogeneity in sensor networks %U http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=1498318&tag=1 %V 2 %X The presence of heterogeneous nodes (i.e., nodes with an enhanced energy capacity or communication capability) in a sensor network is known to increase network reliability and lifetime. However, questions of where how many, and what types of heterogeneous resources to deploy remain largely unexplored. We focus on energy and link heterogeneity in ad hoc sensor networks and consider resource-aware MAC and routing protocols to utilize those resources. Using analysis, simulation, and real testbed measurements, we evaluate the impact of number and placement of heterogeneous resources on performance in networks of different sizes and densities. While we prove that optimal deployment is very hard in general, we also show that only a modest number of reliable, long-range backhaul links and line-powered nodes are required to have a significant impact. Properly deployed, heterogeneity can triple the average delivery rate and provide a 5-fold increase in the lifetime (respectively) of a large batten-powered network of simple sensors.

@inproceedings{yarvis2005exploiting, abstract = {The presence of heterogeneous nodes (i.e., nodes with an enhanced energy capacity or communication capability) in a sensor network is known to increase network reliability and lifetime. However, questions of where how many, and what types of heterogeneous resources to deploy remain largely unexplored. We focus on energy and link heterogeneity in ad hoc sensor networks and consider resource-aware MAC and routing protocols to utilize those resources. Using analysis, simulation, and real testbed measurements, we evaluate the impact of number and placement of heterogeneous resources on performance in networks of different sizes and densities. While we prove that optimal deployment is very hard in general, we also show that only a modest number of reliable, long-range backhaul links and line-powered nodes are required to have a significant impact. Properly deployed, heterogeneity can triple the average delivery rate and provide a 5-fold increase in the lifetime (respectively) of a large batten-powered network of simple sensors.}, added-at = {2016-05-09T22:08:10.000+0200}, author = {Yarvis, M. and Kushalnagar, N. and Singh, H. and Rangarajan, A. and Liu, Y. and Singh, S.}, biburl = {https://puma.ub.uni-stuttgart.de/bibtex/253347f1b2071bc66eae9f2023879d76c/mariusoei}, booktitle = {Proceedings IEEE 24th Annual Joint Conference of the IEEE Computer and Communications Societies.}, description = {IEEE Xplore Abstract - Exploiting heterogeneity in sensor networks}, doi = {10.1109/INFCOM.2005.1498318}, interhash = {3c9e1ce15c9ca15cbdbe0ca682905612}, intrahash = {53347f1b2071bc66eae9f2023879d76c}, issn = {0743-166X}, keywords = {heterogeneity sensor}, month = {March}, pages = {878--890}, publisher = {IEEE}, timestamp = {2016-05-09T20:08:10.000+0200}, title = {Exploiting heterogeneity in sensor networks}, url = {http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=1498318&tag=1}, volume = 2, year = 2005 }