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Sensor nodes, charged with battery power and capable of wireless communications, are distributed around to survey the environments and to send the needed data to the base station. The limited energy resources of sensor nodes are consumed in computation and especially in communication. To reduce power consumption for the sensor network, this paper presents a(More)
For Wireless Multimedia Sensor Networks (WMSN), how to increase the throughput in constrained environments has become the main challenge. Multipath routing is a promising solution because it can improve the channel utilization rate, reduce transmission delay and balance the transmission load. To pursue high efficiency for a multipath routing scheme, we need(More)
The security issue in a distributed sensor network (DSN) has been drawing considerable research attention in recent years. Key management, a basic security service, becomes the core design for various security services, such as encryption and authentication. This paper proposes a scalable grouping random key predistribution scheme which divides all nodes(More)
The security issue in a wireless sensor network (WSN) has been drawing considerable research attention in recent years. Key management, a basic security service, becomes the core design for various security services, such as encryption and authentication. To increase the connectivity of each key in a large-scale WSN and to enlarge its maximum supportable(More)
In this paper, we presented the corpus collection procedure and proposed the effective feature representation. We collected the emotional speech from 50 male and 50 female speakers and the corresponding statistics of the corpus was also demonstrated. The emotional speech corpus was further processed manually for the feature extraction and classification(More)
The article develops the decision rules to win each set of the Chinese chess game using artificial intelligent and evaluation algorithm, and presents the movement scenarios of the chesses using mobile robots on the grid based platform. Artificial intelligent is often applied in computer chess game, and programs the movement method to win each set for a(More)