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  1. No Access

    Chapter and Conference Paper

    Fusion of Radiosonde and GPS Data for Water Vapor Tomography

    The technique of ground-based GPS tomography is a newly spatial tool to sense the water vapor profile in atmosphere area. It has become a complementary technique for other conventional atmospheric sounding tec...

    Na Liu, Pengfei Zhang, Yu** Gao… in China Satellite Navigation Conference (CSN… (2019)

  2. No Access

    Article

    Joint sensing time and power allocation in cognitive networks with amplify-and-forward cooperation

    Cognitive radio is a novel approach to cope with spectrum scarcity, in which either a network or a wireless node changes its transmission or reception parameters to communicate efficiently. However, it is diff...

    Shunling Ruan, Chengshi Zhao, Song Jiang, Kyungsup Kwak in Annals of Telecommunications (2018)

  3. No Access

    Article

    Mutual interference considered power allocation in OFDM-based cognitive networks: the multiple SUs case

    Power allocation for secondary users (SUs) in cognitive networks is an important issue to ensure the SUs’ quality of service. When the mutual interference between the primary users (PUs) and the SUs is taken i...

    Chengshi Zhao, Mingrui Zou, Kyungsup Kwak in annals of telecommunications - annales des… (2010)

  4. No Access

    Article

    Comprehensive Capacity Ensured Distributed Binary Power Allocation in Dense Cognitive Networks

    Considering the capacity gain of the secondary system and the capacity loss of the primary system caused by the newly accessing user, a distributed binary power allocation (admittance criterion) is proposed in...

    Chengshi Zhao, Kyungsup Kwak in Journal of Network and Systems Management (2010)