Fuzzy active period adaptation for dynamic spectrum access in IEEE 802.16h system

Author

Chang, Chung-Ju ; Ren, Fang-Ching ; Sun, Hao-Hsiang

Author_Institution

Dept. of Commun. Eng., Nat. Chiao-Tung Univ., Hsinchu, Taiwan

fYear

2009

fDate

26-28 Aug. 2009

Firstpage

1

Lastpage

5

Abstract

The use of ldquocognitive radiordquo (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.

Keywords

bandwidth allocation; cognitive radio; fuzzy logic; wireless LAN; CR-based dynamic spectrum access device; IEEE 802.16h System; WLAN system; cognitive radio; downlink transmission; dynamic spectrum access; fuzzy active period adaptation; Access protocols; Chromium; Cognitive radio; Fuzzy logic; Fuzzy systems; Interference; Media Access Protocol; Sun; White spaces; Wireless LAN; CR; DSA; EQP; IEEE802.16h; LBT; fuzzy; throughput;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications and Networking in China, 2009. ChinaCOM 2009. Fourth International Conference on

Conference_Location

Xian

Print_ISBN

978-1-4244-4337-6

Electronic_ISBN

978-1-4244-4337-6

Type

conf

DOI

10.1109/CHINACOM.2009.5339864

Filename

5339864