TY - GEN
T1 - Realistic sensing area modeling
AU - Hwang, Joengmin
AU - Gu, Yu
AU - He, Tian
AU - Kim, Yongdae
PY - 2007/9/4
Y1 - 2007/9/4
N2 - Despite the well-known fact that sensing patterns in reality are highly irregular, researchers continue to develop protocols with simplifying assumptions about the sensing. For example, a circular 0/1 sensing model is widely used in most existing simulators and analysis. While this model provides highlevel guidelines, it could cause wrong estimation of system performance in the real world. In this project, we design and implement a practical Sensing Area Modeling technique, called SAM. By injecting events through regular and hierarchical training, SAM estimates the sensing areas of individual sensor nodes accurately. Especially, this work is the first to investigate the impact of irregular sensing area on application performance, such as coverage scheduling. We evaluate SAM using outdoor experiments with XSM motes, indoor experiment with 40 MicaZ motes as well as an extensive 1000-node simulation. Our evaluation results reveal serious problems caused by circular sensing model, while demonstrating significant performance improvements in major applications when SAM is used.
AB - Despite the well-known fact that sensing patterns in reality are highly irregular, researchers continue to develop protocols with simplifying assumptions about the sensing. For example, a circular 0/1 sensing model is widely used in most existing simulators and analysis. While this model provides highlevel guidelines, it could cause wrong estimation of system performance in the real world. In this project, we design and implement a practical Sensing Area Modeling technique, called SAM. By injecting events through regular and hierarchical training, SAM estimates the sensing areas of individual sensor nodes accurately. Especially, this work is the first to investigate the impact of irregular sensing area on application performance, such as coverage scheduling. We evaluate SAM using outdoor experiments with XSM motes, indoor experiment with 40 MicaZ motes as well as an extensive 1000-node simulation. Our evaluation results reveal serious problems caused by circular sensing model, while demonstrating significant performance improvements in major applications when SAM is used.
UR - http://www.scopus.com/inward/record.url?scp=34548307191&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=34548307191&partnerID=8YFLogxK
U2 - 10.1109/INFCOM.2007.293
DO - 10.1109/INFCOM.2007.293
M3 - Conference contribution
AN - SCOPUS:34548307191
SN - 1424410479
SN - 9781424410477
T3 - Proceedings - IEEE INFOCOM
SP - 2421
EP - 2425
BT - Proceedings - IEEE INFOCOM 2007
T2 - IEEE INFOCOM 2007: 26th IEEE International Conference on Computer Communications
Y2 - 6 May 2007 through 12 May 2007
ER -