Reducing the MAC latency for IEEE 802.11 networks in vehicular environments = 차량환경에서 IEEE 802.11 네트워크의 MAC 지연시간 감소기법 연구

In an intermittently connected environment, access points are sparsely distributed throughout an area. As mobile users travel along the roadway, they can opportunistically connect, albeit temporarily, to roadside 802.11 APs for Internet access. Networking characteristics of vehicular opportunistic Internet access in an intermittently connected environment face numerous challenges, such as short periods of connectivity, lengthy connection setup time and unpredictable connection times. To meet these challenges, we propose an Access Point Report (APR) protocol where mobile stations opportunistically collaborate by broadcasting an APR to other mobile stations to fully utilize the short-lived connection. We also provide preliminary work preliminary work and future directions for fast han-doffs in seamlessly connected vehicular environments. In this thesis, we emphasize to use information on vehicle``s movement, i.e., trajectory information, to make accurate and fast handoffs prior to its occurrence. This will maximize the use of short connectivity and support delay-sensitive real-time applications.
Advisors
Kim, Dae-Youngresearcher김대영researcher
Publisher
한국정보통신대학교
Issue Date
2008
Identifier
393000/225023 / 020054651
Language
eng
Description

학위논문(석사) - 한국정보통신대학교 : 공학부, 2008.8, [ vi, 60 p. ]

Keywords

Handoff; IEEE 802.11; Vehicular Internet Access; Opportunistic Communication; 스캐닝; 기회 통신; 핸드 오프; 차량 인터넷; Scanning

URI
http://hdl.handle.net/10203/55005
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=393000&flag=t
Appears in Collection
School of Engineering-Theses_Master(공학부 석사논문)
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