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IEEE 802.15.4 is designed for low power and low rate wireless sensor networks. In the beacon-enabled mode of IEEE 802.15.4, the transmission period consists of contention access period (CAP) and contention free period (CFP). CAP applies carrier-sense multiple access/collision avoidance (CSMA-CA) for its contention mechanism. This paper proposes a delayed backoff algorithm (DBA) to solve contention...
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