Proceedings ArticleDOI
Is There WiFi Yet?: How Aggressive Probe Requests Deteriorate Energy and Throughput
Xueheng Hu,Lixing Song,Dirk Van Bruggen,Aaron Striegel +3 more
- pp 317-323
TLDR
Analysis of empirical data collected from large and medium venues shows how aggressive WiFi scans can have significant implications for energy and throughput for mobile nodes, and thoughts on the disjoint incentives for properly balancing WiFi discovery speed and crowded network interactions are closed.Abstract:
WiFi offloading has emerged as a key component of cellular operator strategy to meet the rich data needs of modern mobile devices. Hence, mobile devices tend to aggressively seek out WiFi in order to provide improved user Quality of Experience (QoE) and cellular capacity relief. For home and work environments, aggressive WiFi scans can significantly improve the speed at which mobile nodes join the WiFi network. Unfortunately, the same aggressive behavior that excels in the home environment incurs considerable side effects in crowded wireless environments. In this paper, we analyze empirical data collected from large (stadium) and medium (classroom) venues, and show through controlled experiments (laboratory) how aggressive WiFi scans can have significant implications for energy and throughput for mobile nodes. We close with several thoughts on the disjoint incentives for properly balancing WiFi discovery speed and crowded network interactions.read more
Citations
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Proceedings ArticleDOI
SocialProbe: Understanding Social Interaction Through Passive WiFi Monitoring
TL;DR: The result shows that the proposed approach to extract social behavior and interaction patterns of mobile users by passively monitoring WiFi probe requests and null data frames that are sent by smartphones for network control/management purposes is able to obtain reliable social relationships and interactions in a non-intrusive way.
Proceedings ArticleDOI
Why it takes so long to connect to a WiFi access point
Changhua Pei,Zhi Wang,Youjian Zhao,Zihan Wang,Yuan Meng,Dan Pei,Yuanquan Peng,Wenliang Tang,Xiaodong Qu +8 more
TL;DR: Zhang et al. as discussed by the authors carried out a large-scale study on how large the WiFi connection set-up time cost is, what factors affect the Wi-Fi connection setup process, and what can be done to reduce the WiFi Connection Set-Up time cost.
Journal ArticleDOI
A Case Study of WiFi Sniffing Performance Evaluation
TL;DR: An experimental analysis of sniffing performance under different wireless environments using off-the-shelf products to identify the possible factors including channel settings and access point configurations that affect sniffing behaviours and performances, thereby enabling the design of a protocol for a WiFi sniffing system under the optimal monitoring strategy in a real deployment.
Journal ArticleDOI
CrowdProbe: Non-invasive Crowd Monitoring with Wi-Fi Probe
TL;DR: CrowdProbe as mentioned in this paper used a Hidden Markov Models (HMM) based trajectory inference algorithm to infer crowd movement using more than 17 million opportunistically obtained probe request frames.
Journal ArticleDOI
SNOW: Detecting Shopping Groups Using WiFi
TL;DR: Instead of collecting probe requests, SNOW utilizes the WiFi data from smartphones associated with the deployed access points (APs) and applies matrix factorization with a sparsity constraint to derive grouping results directly.
References
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Proceedings ArticleDOI
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Proceedings ArticleDOI
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