A Practical Design of Multi-channel MAC for Cluster-tree WSN
Multi-channel media access control (MAC) now has been well understood in wireless sensor network (WSN) with the development of sensor device which is equipped with a single half-duplex transceiver with multiple-frequency support. However, peer-to-peer WSN causes much attention by researchers, while it is not suitable for lots of practical applications. In this paper, a new design of multi-channel MAC special for cluster-tree WSN, a typical asymmetric network, is introduced. Clustertree WSN has many special features in nodes distribution and data direction. According to these features, phase hopping (control channel and data channel coexist) is used to achieve multi-channel assignment and channel switch and time division multiple address (TDMA) mechanism is utilized to avoid data collision in the period of nodes communication. The simulation results show that the scheme presented has advantages in providing higher maximum effective data transmission and smaller average packet delay and reducing energy consumption.
multi-channel cluster-tree WSN TDMA MAC
Hong Zhang Shuyu Li
School of Co mputer Sc ience and Technology Harbin University of Science and Technology Harbin,China
国际会议
The 6th International Forum on Strategic Technology(IFOST 2011)(第六届国际战略技术论坛)
哈尔滨
英文
761-764
2011-08-22（万方平台首次上网日期，不代表论文的发表时间）