DocumentCode :
3257465
Title :
Less Transmissions, More Throughput: Bringing Carpool to Public WLANs
Author :
Wei Wang ; Yingjie Chen ; Qian Zhang ; Kaishun Wu ; Jin Zhang
fYear :
2015
fDate :
June 29 2015-July 2 2015
Firstpage :
768
Lastpage :
769
Abstract :
The proliferation of WiFi hotspots in public places enables ubiquitous Internet access. These public WiFi hotspots usually serve scores of mobile devices and suffer from extremely poor performance in terms of low good put and severe delay. In this paper, we first study the traffic characteristics in public WiFi networks, and demonstrate that the main causes of such poor performance are media access control (MAC) inefficiency and downlink-uplink traffic asymmetry. To cope with these issues, we call attention to transmission carpool, which facilitates an access point (AP) to send multiple frames for different mobile stations (STAs) in a single transmission. It reduces contention and conveys more frames in each channel access. As such, each downlink transmission carries more payload and thus improves efficiency and solves traffic asymmetry simultaneously.
Keywords :
Internet; access protocols; mobile radio; telecommunication traffic; wireless LAN; wireless channels; AP; MAC; Wi-Fi hotspot; access point; carpool; channel access; contention reduces; downlink-uplink traffic asymmetry; media access control; mobile device; public WLAN; public WiFi network; transmission carpool; ubiquitous Internet access; Conferences; Downlink; IEEE 802.11n Standard; Libraries; Throughput; Wireless LAN; Frame Aggregation; MAC efficiency; PHY/MAC Design;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Distributed Computing Systems (ICDCS), 2015 IEEE 35th International Conference on
Conference_Location :
Columbus, OH
ISSN :
1063-6927
Type :
conf
DOI :
10.1109/ICDCS.2015.100
Filename :
7164978
Link To Document :
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