A wireless sensor network consists of many low-cost, low-power sensor nodes, which can
perform sensing, simple computation, and transmission of sensed information. Long …

In this paper, we are interested in minimizing the delay and maximizing the lifetime of event-
driven wireless sensor networks for which events occur infrequently. In such systems, most …

Energy efficiency is critical for wireless sensor networks. The data gathering process must
be carefully designed to conserve energy and extend the network lifetime. For applications …

This paper exploits the tradeoff between data qual-ity and energy consumption to extend the
lifetime of wireless sensor networks. We consider the applications that require some …

The benefits of using mobile base station to prolong sensor network lifetime have been well
recognized. However, due to the complexity of the problem (time-dependent network …

In wireless sensor networks, the sensors collect data and deliver it to a sink node. Most of
the existing proposals deal with the traffic flow problem to deliver data to the sink node in an …

Energy efficiency is critical for wireless sensor networks. The data-gathering process must
be carefully designed to conserve energy and extend network lifetime. For applications …

Joint scheduling and power control schemes have previously been proposed to reduce
power dissipation in wireless ad hoc networks. However, instead of power consumption …

Cognitive radio and Dynamic Spectrum Access (DSA) enable wireless users to share a wide
range of available spectrums. In this paper, we study joint spectrum allocation and …

Wireless mesh network is designed as an economical solution for last-mile broadband
Internet access. In this paper, we study bandwidth allocation in multi-channel multihop …