ChinaCom2009-Frontiers on Communications and Networking Symposium

Research Article

Fuzzy Active Period Adaptation for Dynamic Spectrum Access in IEEE 802.16h System

  • @INPROCEEDINGS{10.1109/CHINACOM.2009.5339864,
        author={Chung-Ju Chang and Fang-Ching Ren and Hao-Hsiang Sun},
        title={Fuzzy Active Period Adaptation for Dynamic Spectrum Access in IEEE 802.16h System},
        proceedings={ChinaCom2009-Frontiers on Communications and Networking Symposium},
        publisher={IEEE},
        proceedings_a={CHINACOM2009-FCN},
        year={2009},
        month={11},
        keywords={fuzzy DSA CR IEEE802.16h EQP LBT throughput},
        doi={10.1109/CHINACOM.2009.5339864}
    }
    
  • Chung-Ju Chang
    Fang-Ching Ren
    Hao-Hsiang Sun
    Year: 2009
    Fuzzy Active Period Adaptation for Dynamic Spectrum Access in IEEE 802.16h System
    CHINACOM2009-FCN
    IEEE
    DOI: 10.1109/CHINACOM.2009.5339864
Chung-Ju Chang1,*, Fang-Ching Ren2, Hao-Hsiang Sun1
  • 1: Department of Communication Engineering National Chiao-Tung University Hsinchu, Taiwan 300
  • 2: Industrial Technology Research Institute Hsinchu, Taiwan 310
*Contact email: cjchang@mail.nctu.edu.tw

Abstract

The use of “cognitive radio” (CR) technology is viewed as the key technology to fully utilize the bandwidth. In this paper, a CR-based dynamic spectrum access (DSA) device named fuzzy active period adaptor (FAPA) is proposed in a downlink transmission of IEEE 802.16h systems. FAPA decides the active period of IEEE 802.16h system to efficiently coexist with a WLAN system in unlicensed spectrum. Simulation results show that the fuzzy active period adaptation improve the overall throughput, and reduce the idle time of the spectrum.