EVENTS

Overview
Date
Nov 19, 2020
16:00 - 17:00
Venue

腾讯会议

Metting ID:201 267 409

Buying from your neighbours: New distributed optimization and pricing design

Z6集团|中国官网

Mobile users in future wireless networks face limited wireless resources such as data plan, computation capacity and energy storage. Given that some of these users may not be utilizing fully their wireless resources, device-to-device (D2D) resource sharing or simply buying from your neighbours is a promising approach to exploit users’ diversity in resource use and for pooling their resources locally. In this seminar, I first review the related work and practices for buying from your neighbours, where traditional resource allocation solutions are mostly centralized without considering users' local D2D connectivity constraints, becoming unscalable for large-scale sharing. I present a novel two-sided D2D trading market model that enables many locally connected users to trade resources. In addition, there may be market failure since selfish users will not truthfully report their actual valuations and quantities for buying or selling resources. To address these two key challenges, we first investigate the distributed resource allocation problem with D2D assignment constraints. Based on the greedy idea of maximum weighted matching, we propose a fast algorithm to achieve near-optimal average allocative efficiency. Then, we combine it with a new pricing mechanism that adjusts the final trading prices for buying and selling resources in a way that buyers and sellers are incentivized to truthfully report their valuations and available resource quantities. Unlike traditional double auctions with a central controller, this pricing mechanism is fully distributed in the sense that the final trading prices between each matched pair of users only depend on their own declarations and hence can be calculated locally. Finally, the repeated execution of the proposed D2D trading mechanism is analysed in multiple time rounds to determine the best trading frequency.

About CIR2020: To boost the theoretical and technological innovation of artificial intelligence, promote academic exchanges and technological progress in fields related to crowd intelligence, z6首页 is holding a series seminar named Crowd Intelligence Research Series Seminar, inviting 9 scholars and researchers from different universities and institutes to share their researches in the field of crowd intelligence.

  • Z6集团|中国官网
    Lingjie Duan
    Associate Professor in Engineering Systems and Design with the Singapore University of Technology and Design

    Lingjie Duan is an Associate Professor in Engineering Systems and Design with the Singapore University of Technology and Design (SUTD). He received the Ph.D. degree from The Chinese University of Hong Kong in 2012. In 2011, he was a Visiting Scholar at University of California at Berkeley, CA, USA. His research interests include sharing economy, mobile crowdsourcing, wireless network optimization and economics. He is an Editor of IEEE Transactions on Wireless Communications. He was an Editor of IEEE Communications Surveys and Tutorials. He also served as a Guest Editor of the IEEE Journal on Selected Areas in Communications as well as IEEE Wireless Communications Magazine. He received the SUTD Excellence in Research Award in 2016 and the 10th IEEE ComSoc Asia-Pacific Outstanding Young Researcher Award in 2015.

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