Reducing the MAC latency for IEEE 802.11 vehicular internet access

Authors:
Daehan Kwak;Moonsoo Kang;Jeonghoon Mo
Affiliations:
UWB Wireless Communications Research Center, Inha University, Incheon, Republic of Korea;Department of Computer Science and Engineering, Chosun University, Gwangju, Republic of Korea;Department of Information and Industrial Engineering, Younsei University, Seoul, Republic of Korea
Venue:
EURASIP Journal on Wireless Communications and Networking
Year:
2010

Citing 3
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Abstract

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 (Wi-Fi) APs for Internet access. Networking characteristics of vehicular Internet access in an intermittently connected environment face numerous challenges, such as short periods of connectivity and unpredictable connection times. To meet these challenges, we propose an Access Point Report (APR) protocol wheremobile stations opportunistically collaborate by broadcasting an APR to other mobile stations to fully utilize the short-lived connection periods. APR can optimize the use of short connection periods by minimizing the scanning delay and also act as a hint that enables mobile users to predict when connection can be established.