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The function and structure and the architecture of sensor network based on ZigBee/802.15.4 standard for forest monitoring are designed in this paper. According to the features of forest monitoring, the sensor nodes based on CC2520 and low power consumption chip MSP430F5437 and the coordinator Combing with ARM are designed which realize the energy control in physical layer. With the wireless sensor...
In this paper, we study a distributed resource control problem achieving fairness and information theoretic capacity in an OFDMA system. For practicality, we consider an OFDMA system with incomplete information. The information theoretic MAC capacity region is known to be achieved by successive decoding schemes. Therefore, the problem can be formulated as a stackelberg optimization problem. As a solution...
In this paper, we address the issue of transmission power control (TPC) in wireless ad hoc networks. Power control plays an important role in energy saving and network performance enhancement. However, the existing TPC schemes either face the problem of hidden and exposed terminal or have additional hardware requirements. We propose a novel distributed power control protocol, called Receiver Initiated...
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