Conflict-free Channel Allocation for Wireless Wearable Computer Networks
نویسندگان
چکیده
A Wireless USB cluster tree topology is formed to configure multiple Wearable Computer Networks (WCNs). Basically, a single WCN operates based on WUSB over WBAN protocol. And the host in each WCN takes a role of DRD-host or DRD-device. The WUSB/WBAN flows in a WCN are manipulated in a time period during a WBAN superframe. On the other hand, the DRD flows between WCNs are manipulated in a time period during a WiMedia D-MAC superframe. However, if multiple WCNs exist within the same environment, various conflicts among independent WCNs can occur frequently. In order to solve this problem, we propose a channel allocation scheme to avoid the conflict between adjacent WCNs. The proposed scheme can scan new idle channel and detect its time offset where a WCN device can transmit a new beacon frame and data frames without conflicts. Simulation results demonstrate that the proposed scheme can minimize the possibility of data frame collisions.
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