MLDS: A flexible location directory service for tiered sensor networks Export

@article{citeulike:4712798, abstract = {Many location based services, such as a those used in healthcare facilities to track medical personnel and equipment, need to keep track of mobile entities across wide areas. These services can be realized in a cost-effective and efficient manner using tiered sensor networks comprised of multiple wireless sensor networks connected by an IP network. To simplify the realization of such services, we present MLDS, a Multi-resolution location directory service for tiered sensor networks. MLDS provides a rich set of spatial query services ranging from simple queries about entity location, to complex nearest-neighbor queries. Furthermore, MLDS supports multiple query granularities which allow an application to achieve the desired tradeoff between query accuracy and communication cost. We implemented MLDS on Agimone, a unified middleware for sensor and IP networks. We then deployed and evaluated the service on a tiered sensor network testbed consisting of tmotes and PCs. Our experimental results show that, when compared to a centralized approach, MLDS achieves significant savings in communication cost while still providing a high degree of accuracy, both within a single sensor network and across multiple sensor networks.}, address = {Newton, MA, USA}, author = {Bhattacharya, Sangeeta and Fok, Chien L. and Lu, Chenyang and Roman, Gruia C.}, citeulike-article-id = {4712798}, citeulike-linkout-0 = {http://portal.acm.org/citation.cfm?id=1355195}, citeulike-linkout-1 = {http://dx.doi.org/10.1016/j.comcom.2008.01.036}, doi = {10.1016/j.comcom.2008.01.036}, issn = {0140-3664}, journal = {Comput. Commun.}, keywords = {middleware, wsn}, number = {6}, pages = {1160--1172}, posted-at = {2009-06-02 01:09:31}, priority = {2}, publisher = {Butterworth-Heinemann}, title = {MLDS: A flexible location directory service for tiered sensor networks}, url = {http://dx.doi.org/10.1016/j.comcom.2008.01.036}, volume = {31}, year = {2008} }

TY - JOUR ID - citeulike:4712798 L3 - citeulike-article-id:4712798 N2 - Many location based services, such as a those used in healthcare facilities to track medical personnel and equipment, need to keep track of mobile entities across wide areas. These services can be realized in a cost-effective and efficient manner using tiered sensor networks comprised of multiple wireless sensor networks connected by an IP network. To simplify the realization of such services, we present MLDS, a Multi-resolution location directory service for tiered sensor networks. MLDS provides a rich set of spatial query services ranging from simple queries about entity location, to complex nearest-neighbor queries. Furthermore, MLDS supports multiple query granularities which allow an application to achieve the desired tradeoff between query accuracy and communication cost. We implemented MLDS on Agimone, a unified middleware for sensor and IP networks. We then deployed and evaluated the service on a tiered sensor network testbed consisting of tmotes and PCs. Our experimental results show that, when compared to a centralized approach, MLDS achieves significant savings in communication cost while still providing a high degree of accuracy, both within a single sensor network and across multiple sensor networks. IS - 6 JF - Comput. Commun. SN - 0140-3664 AD - Newton, MA, USA EP - 1172 TI - MLDS: A flexible location directory service for tiered sensor networks PB - Butterworth-Heinemann VL - 31 SP - 1160 KW - middleware KW - wsn AU - Bhattacharya, Sangeeta AU - Fok, Chien AU - Lu, Chenyang AU - Roman, Gruia PY - 2008/// UR - http://dx.doi.org/10.1016/j.comcom.2008.01.036 ER -