Research Topics

Currently, my research focuses on:

Operations Research in Telecommunications;
Machine Learning in Communications and Networking;
Cognitive Communications and Networking.

Emergency telecommunications：UAV trajectory planning

Terrestrial wireless networks are already very dense such that the third dimension becomes very relevant. Due to the characteristics of high mobility, easy deployment, and economical price, UAV has been foreseen as a key enabler in many domains, which can compensate for the terrestrial mobile communication systems via improving wireless coverage and communication quality. For example, UAVs can act as temporary base stations to establish emergency communication networks after a disaster; and can act as aerial access points to provide information dissemination/collection in wildernesses, etc.

Despite the development of design and manufacturing technology, the onboard battery capacity of UAVs is still limited, which restricts its application in many occasions, especially in large-scale areas. We consider a cooperative trajectory planning scheme to deal with the energy problem of UAVs.

Large-scale wireless network optimization

In large-scale cellular wireless networks, it is necessary to improve multiple network performance indicators by optimizing the networking parameters of base stations, such as station location, handover parameters, load balancing parameters and radio frequency parameters. Nowadays, wireless networks have formulated new standards in terms of spectrum, air ports and network architecture to meet future application scenarios. These new standards bring new challenges to the optimization of wireless networks. On the one hand, parameter adjustment is coupled with each other, and the expansion of parameter scale caused by the new standard increases the difficulty of solving the problem exponentially; On the other hand, the effect of parameter adjustment on the network performance index is difficult to be characterized by simple formula due to the complexity of the device mechanism.

Virtual network function scheduling

Updating