An Efficient Superframe Algorithm for IEEE 802.15.4 Cluster Tree Networks
نویسندگان
چکیده
A cluster tree network is a special case of a peer-to-peer network in which most devices are full function devices (FFDs). Any FFD may serves as a coordinator and implements synchronization services to other devices or other coordinators. However, if the coordinator nodes send periodic beacon frames at inappropriate time, the beacon transmission will be collide each other and prevent children nodes to synchronize to their coordinator. In this paper, we propose an efficient superframe algorithm to overcome the above mentioned problem. The values of beacon order and superframe order for coordinators and device nodes are chosen by considering the interarrival time, the number of children nodes and the depth of coordinator. Index Terms IEEE 802.15.4, cluster tree network, coordinator, beacon order, superframe order
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