Yanwei Wu

TL;DR: This paper uses TDMA as the MAC layer protocol and schedules the sensor nodes with consecutive time slots at different radio states while reducing the number of state transitions, and proposes effective algorithms to construct data gathering tree such that the energy consumption and the network throughput is within a constant factor of the optimum.

TL;DR: This paper proposes a novel interference-free TDMA sleep scheduling problem called contiguous link scheduling, which assigns sensors with consecutive time slots to reduce the frequency of state transitions and presents efficient centralized and distributed algorithms that use time slots at most a constant factor of the optimum.

TL;DR: This paper proposes a novel grid-based gateway deployment method using a cross-layer throughput optimization, and proves that the achieved throughput by the method is a constant times of the optimal.

TL;DR: This paper addresses the problem of energy efficient reliable routing for wireless ad hoc networks in the presence of unreliable communication links or devices or lossy wireless link layers by integrating the power control techniques into the energy efficient routing.

TL;DR: This paper designed efficient algorithm for throughput (or fairness) optimization by finding flow routing, scheduling of transmissions, and dynamic channel assignment and combining and shows that combining multiple channels and assigning them to a single user at some time slots indeed increases the maximum throughput of the system compared to assigning a single channel.