Abstract-This paper propose the energy saving algorithms for medium access control in wireless sensor network to improve energy saving and increasing packet delivery ration for periodic applications in border surveillance wireless sensor networks. Since the data dissemination is periodic, the data update can be scheduled so that all nodes in virtual cluster must tightly synchronize their transmission to avoid collision. S-MAC [1] and D-MAC [2] schedules should be modified to satisfy the power cost of data delivery. Our implementations of this paper proposed the wake-up algorithm, the delay wakeup algorithm, and topology based the virtual group schedules. The results show that our proposed algorithms perform better than S-MAC and D-MAC in terms of energy efficiency and packet delivery ratio.
Keywords-medium access control (MAC), border surveillance wireless sensor networks (BSWSNs), energy efficiency (EE), and packet delivery ratio (PDR).
I. INTRODUCTIONWireless sensor networks (WSNs) have a wide range of potential applications due to inexpensive and small characteristics. Therefore, they are being developed to interact directly with the physical world. Commonly, sensors nodes can be deployed in specific conditions in predefine areas such as border, private properties. Their main objective is the detection able to sense various environmental data such as temperature, light, humidity, and vibration, node mobility, etc. there are huge border surveillance applications for WSNs, However, depend on application-specific goals, there are difference protocols that focus on the characteristics of application to optimal performance of WSNs. Our works consider battery lifetime and packet delivery ratio (PDR) in underwater surveillance wireless sensor network (USWSNs).A large number of energy-efficient MAC protocols have been proposed, each protocol showed that it plays a most crucial rule in communication energy efficiency, based on the applications, each with each own specific trade-off. S-MAC [1] differs from other traditional wireless MAC protocols. In order to minimize the idle listening, S-MAC use a sleep-listen schedule, when slept, nodes turn off their radio. Nodes also synchronize each other by broadcasting synchronization (SYNC) packets and each node could follow more than one schedule. In this way, nodes can save their energy. This protocol trades off among energy efficiency, latency and throughput. D-MAC [2] is designed to solve the interruption
