• 其他栏目

    朱小军

    • 副教授 硕士生导师
    • 招生学科专业:
      计算机科学与技术 -- 【招收硕士研究生】 -- 计算机科学与技术学院
      软件工程 -- 【招收硕士研究生】 -- 计算机科学与技术学院
      电子信息 -- 【招收硕士研究生】 -- 计算机科学与技术学院
    • 性别:男
    • 毕业院校:南京大学
    • 学历:南京大学
    • 学位:工学博士学位
    • 所在单位:计算机科学与技术学院/人工智能学院/软件学院
    • 办公地点:计算机学院实验楼209B
    • 电子邮箱:

    访问量:

    开通时间:..

    最后更新时间:..

    No more free riders: sharing wifi secrets with acoustic signals

    点击次数:

    所属单位:计算机科学与技术学院/人工智能学院/软件学院

    发表刊物:Proc Int Conf Comput Commun Networks ICCCN

    摘要:Shopping malls, restaurants, and book shops usually offer free WiFi to customers, but they cannot afford non-customers (i.e., WiFi free riders) consuming their limited bandwidth. To provide WiFi information (i.e., SSID and password) secretly to customers, they usually display it in places where only customers can see, and update it regularly. The drawbacks are that customers need to enter the password manually and sometimes they do not know the location of the information. In this paper, we propose an alternative solution. In our system, the WiFi providers set up a speaker to continuously broadcast acoustic signals encoding WiFi information, and the customers use their smartphones to receive and decode the signals. Because acoustic signals attenuate rapidly through walls, only customers in the venue can acquire WiFi information. We implement a prototype system and show the feasibility of our approach. Experiments indicate that in our system, a user can connect successfully to the WiFi within several seconds. © 2019 IEEE.

    ISSN号:1095-2055

    是否译文:

    发表时间:2019-07-01

    合写作者:张黎,Wu, Xiaobing

    通讯作者:朱小军