this scheme is centralized and nodes enter the sleeping state synchronously upon the reception of this command. To improve energy saving, a power control mechanism in the MAC sublayer is also proposed, based on the distance between
1. Naidech AM, Janjua N, Kreiter KT, et al. Predictors and impact of aneurysmal rebleeding after subarachnoid hemorrhage. Arch Neurol. 2005;62:410-416. 2. Starke RM, Connolly ES Jr; Participants in the International Multi-Disciplinary Consensus Conference on the C...