- Energy Harvesting in Wireless Networks
- Advanced Wireless Communication Technologies
- Graphene research and applications
- Advanced Wireless Communication Techniques
- Carbon Nanotubes in Composites
- Supercapacitor Materials and Fabrication
- IoT and Edge/Fog Computing
- Advanced MIMO Systems Optimization
Beijing Institute of Technology
2020-2022
We investigate the green resource allocation to minimize energy consumption of users in mobile edge computing systems, where task offloading decisions, transmit power, and computation are jointly optimized. The considered minimization problem is a non-convex mixed-integer non-linear programming problem, which challenging solve. Therefore, we develop joint search Successive Convex Approximation (SCA) scheme optimize non-integer variables integer inner loop outer loop, respectively....
We investigate the energy-efficient channel estimation in wireless networks, where one pilot is inserted for every several data slots to estimate coefficients. Both state information error and time-varying model are considered. first formulate problem into a mixed integer nonlinear programming (MINLP) problem, variables include transmitted power number of slots. Due NP-hard nature, we degenerate MINLP series non-concave optimization problems without variables. Then solve these using...