X
Xi Chen
Researcher at Tsinghua University
Publications - 29
Citations - 325
Xi Chen is an academic researcher from Tsinghua University. The author has contributed to research in topics: Wireless sensor network & HVAC. The author has an hindex of 11, co-authored 29 publications receiving 315 citations.
Papers
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Journal ArticleDOI
Tracking a moving object via a sensor network with a partial information broadcasting scheme
TL;DR: A partial information broadcasting scheme (PIBS) is developed as a decentralized tracking strategy in this paper, where only a part of the nodes broadcast their tracking estimation results to their neighbors and the relationship between tracking accuracy and resource consumption is quantified.
Journal ArticleDOI
Policy iteration based feedback control
TL;DR: This paper first provides an optimality equation based on performance potentials and develops a policy iteration procedure, then applies policy iteration to the jump linear quadratic problem and obtains the coupled Riccati equations for their optimal solutions.
Book ChapterDOI
A new gradient-based routing protocol in wireless sensor networks
Li Xia,Xi Chen,Xiaohong Guan +2 more
TL;DR: A new gradient-based routing protocol that takes into account the minimum hop count and remaining energy of each node while relaying data from source node to the sink is proposed.
Journal ArticleDOI
Long-Term Scheduling for Cascaded Hydro Energy Systems With Annual Water Consumption and Release Constraints
TL;DR: This paper forms the long-term scheduling problem of cascaded hydro energy systems with annual consumption and release constraints as a finite horizon constrained Markov decision process (CMDP), and develops a new rollout algorithm to optimize the policies.
Journal ArticleDOI
Policy iteration for customer-average performance optimization of closed queueing systems
Li Xia,Xi Chen,Xi-Ren Cao +2 more
TL;DR: A new direction to efficiently optimize the ''customer-centric'' performance in queueing systems by proposing a policy iteration optimization algorithm based on a difference equation of the customer-average performance in closed networks with exponentially distributed service times and state-dependent service rates.