A major concern in wireless sensor networks is to maximize network lifetime (in terms of rounds) while maintaining a high quality of services (QoS) at each round such as target coverage and network connectivity. Due to the power scarcity of sensors, a mechanism that can efficiently utilize energy has a great impact on extending network lifetime. Most existing works concentrate on scheduling sensors between sleep and active modes to maximize network lifetime while maintaining target/area coverage and network connectivity. This paper generalizes the sleep/active mode by adjusting sensing range to maximize total number of rounds and presents a distributed heuristic to address this problem.
Lu et al. REF generalize the round of sleep and active cycle by adjusting sensing range to maximize total number of rounds and present a distributed heuristic where some generic connectivity condition can be used even when the transmission range much less than the sensing range.
Energy-Efficient Connected Coverage of Discrete Targets in Wireless Sensor Networks
ICCNMC
Computer Science