A Hybrid Channel Hopping Scheme for Wireless Sensor Networks Based on IEEE 802.15.4
To possess more sensor nodes and maximize the capacity of future networks, anti-interference technology becomes one of the important research subjects in Wireless Sensor Networks (WSNs). The previous studies indicate that the dynamic timeslot allocation and channel hopping can solve the interference problem, while a pure channel hopping technology may lose other network performances. Combined with the dynamic resource allocation (DRA) and the theory of the channel hopping technology, this paper proposes a hybrid channel hopping scheme for WSNs based on IEEE 802.15.4. In this scheme, it introduces two channel modes (channel hopping mode and channel adaption mode). Nodes select the channel mode, dynamically apply for a channel or timeslots by DRA request, and automatically switch the channel mode according to the channel condition. The experimental results show that the proposed scheme can effectively improve the anti-interference capability and enhance the network capacity.
hybrid channel hopping dynamic superframe allocation channel hopping adaptive channel hopping
Yong Li Hairong Sun Yibin Huang
Key laboratory of Network Control & Intelligent Instrument, Ministry of Education Chongqing University of Posts and Telecommunications Chongqing, China
国际会议
哈尔滨
英文
2764-2768
2011-12-24（万方平台首次上网日期，不代表论文的发表时间）