Less Transmissions, More Throughput: Bringing Carpool to Public WLANs

Wang，Wei1,3; Chen，Yingjie3; Zhang，Qian2,3; Wu，Kaishun3; Zhang，Jin3,4

10.1109/ICDCS.2015.100

2015-07-22

Proceedings - International Conference on Distributed Computing Systems

2015-July

768-769

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.

Frame Aggregation MAC efficiency PHY/MAC Design

其他

英语

CPCI-S

WOS:000380516200092

2-s2.0-84944320041

Scopus

1.School of Electronic Information and Communications,Huazhong University of Science and Technology,China
2.Department of Computer Science and Engineering,Hong Kong University of Science and Technology,Hong Kong
3.Guangzhou HKUST Fok Ying Tung Research Institute,China
4.Department of Electrical and Electronic Engineering,South University of Science and Technology of China,China

Wang，Wei,Chen，Yingjie,Zhang，Qian,et al. Less Transmissions, More Throughput: Bringing Carpool to Public WLANs[C],2015:768-769.