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학술대회 Small wideband PIFA for mobile phones at 1800 MHz
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저자
김병찬, 윤재훈, 최형도
발행일
200405
출처
Vehicular Technology Conference (VTC) 2004 (Spring), pp.27-29
DOI
https://dx.doi.org/10.1109/VETECS.2004.1387905
협약과제
04MR1700, 전자파 영향 및 표준화 연구, 최재익
초록
The coexistence and interworking of IEEE 802.16 and IEEE 802.11 is an acute problem. The frame-based medium access of 802.16 requires rigorous protection against interference from wireless local area networks in order to operate properly. The 802.11e enhancements of the medium access control of 802.11 introduce the capability to support QoS. These enhancements define a central entity as main element: The Hybrid Coordinator. It realizes a contention free, centrally controlled medium access and introduces QoS limitations to the contention based access of 802.11e. In this paper, a central coordinating device combines the central base station of 802.16 with the hybrid coordinator of 802.11e and is thus referred to as Base Station Hybrid Coordinator. The Base Station Hybrid Coordinator is capable to operate in an 802.16 and an 802.11(e) protocol mode in the same frequency band. The realization of the interworking between these two standards is discussed and evaluated in this paper. © 2006 IEEE.
키워드
Base station hybrid coordinator, Coexistence and interworking, IEEE 802.11(e), IEEE 802.16
KSP 제안 키워드
800 MHz, Contention-based, IEEE 802.11, IEEE 802.16, Local Area Network(LAN), Medium Access Control, Wireless Local Area Networks(WLANs), base station(BS), frequency band, mobile phone, protocol mode