TY - GEN
T1 - Energy-efficient contact probing in opportunistic mobile networks
AU - Zhou, Huan
AU - Zheng, Huanyang
AU - Wu, Jie
AU - Chen, Jiming
PY - 2013
Y1 - 2013
N2 - In Opportunistic Mobile Networks (OppNets), data is opportunistically exchanged between nodes who encounter each other. In order to enable such data exchanges, nodes in the network have to probe their environment continually, so as to discover neighbor nodes. This can be an extremely energy-consuming process. If nodes probe very frequently, they will consume a lot of energy, and might be energy inefficient. On the other hand, infrequent contact probing might cause nodes to miss many of their contacts, and thus opportunities to exchange data are lost. Therefore, there exists a trade-off between energy efficiency and the contact opportunities in OppNets. In this paper, in order to investigate this trade-off, we first propose a model to quantify the detecting probability in OppNets, using the Random WayPoint (RWP) model. Then, extensive simulations are conducted to validate the correctness of our proposed model. Finally, based on the proposed model, we analyze the trade-off between energy efficiency and the total number of effective contacts under different situations. Our results show that the good trade-off points are obviously different when the speed of nodes is different. Moreover, the detecting probability increases as the speed of nodes decreases, while the total number of effective contacts increases as the speed of nodes increases.
AB - In Opportunistic Mobile Networks (OppNets), data is opportunistically exchanged between nodes who encounter each other. In order to enable such data exchanges, nodes in the network have to probe their environment continually, so as to discover neighbor nodes. This can be an extremely energy-consuming process. If nodes probe very frequently, they will consume a lot of energy, and might be energy inefficient. On the other hand, infrequent contact probing might cause nodes to miss many of their contacts, and thus opportunities to exchange data are lost. Therefore, there exists a trade-off between energy efficiency and the contact opportunities in OppNets. In this paper, in order to investigate this trade-off, we first propose a model to quantify the detecting probability in OppNets, using the Random WayPoint (RWP) model. Then, extensive simulations are conducted to validate the correctness of our proposed model. Finally, based on the proposed model, we analyze the trade-off between energy efficiency and the total number of effective contacts under different situations. Our results show that the good trade-off points are obviously different when the speed of nodes is different. Moreover, the detecting probability increases as the speed of nodes decreases, while the total number of effective contacts increases as the speed of nodes increases.
KW - Contact probing
KW - Energy consumption
KW - Opportunistic Mobile Networks
KW - Random WayPoint model
UR - http://www.scopus.com/inward/record.url?scp=84891403813&partnerID=8YFLogxK
U2 - 10.1109/ICCCN.2013.6614135
DO - 10.1109/ICCCN.2013.6614135
M3 - 会议稿件
AN - SCOPUS:84891403813
SN - 9781467357746
T3 - Proceedings - International Conference on Computer Communications and Networks, ICCCN
BT - 22nd International Conference on Computer Communications and Networks, ICCCN 2013 - Conference Proceedings
T2 - 2013 IEEE 2013 22nd International Conference on Computer Communication and Networks, ICCCN 2013
Y2 - 30 July 2013 through 2 August 2013
ER -
