Wireless Communications: Principles and Practice
Wireless Communications: Principles and Practice
Channel surfing and spatial retreats: defenses against wireless denial of service
Proceedings of the 3rd ACM workshop on Wireless security
Architecture and techniques for diagnosing faults in IEEE 802.11 infrastructure networks
Proceedings of the 10th annual international conference on Mobile computing and networking
The changing usage of a mature campus-wide wireless network
Proceedings of the 10th annual international conference on Mobile computing and networking
Adaptive Temporal Radio Maps for Indoor Location Estimation
PERCOM '05 Proceedings of the Third IEEE International Conference on Pervasive Computing and Communications
Troubleshooting multihop wireless networks
SIGMETRICS '05 Proceedings of the 2005 ACM SIGMETRICS international conference on Measurement and modeling of computer systems
Self-management in chaotic wireless deployments
Proceedings of the 11th annual international conference on Mobile computing and networking
Feasibility study of mesh networks for all-wireless offices
Proceedings of the 4th international conference on Mobile systems, applications and services
MiNT-m: an autonomous mobile wireless experimentation platform
Proceedings of the 4th international conference on Mobile systems, applications and services
Jigsaw: solving the puzzle of enterprise 802.11 analysis
Proceedings of the 2006 conference on Applications, technologies, architectures, and protocols for computer communications
Robotics-based location sensing using wireless Ethernet
Wireless Networks
On accurate measurement of link quality in multi-hop wireless mesh networks
Proceedings of the 12th annual international conference on Mobile computing and networking
Self-healing multi-radio wireless mesh networks
Proceedings of the 13th annual ACM international conference on Mobile computing and networking
Learning Adaptive Temporal Radio Maps for Signal-Strength-Based Location Estimation
IEEE Transactions on Mobile Computing
Roomba MADNeT: a mobile ad-hoc delay tolerant network testbed
ACM SIGMOBILE Mobile Computing and Communications Review
BreadCrumbs: forecasting mobile connectivity
Proceedings of the 14th ACM international conference on Mobile computing and networking
Assessment of urban-scale wireless networks with a small number of measurements
Proceedings of the 14th ACM international conference on Mobile computing and networking
Available bandwidth-based association in IEEE 802.11 Wireless LANs
Proceedings of the 11th international symposium on Modeling, analysis and simulation of wireless and mobile systems
Sensei-uu: a relocatable sensor network testbed
Proceedings of the fifth ACM international workshop on Wireless network testbeds, experimental evaluation and characterization
Macrocell electric field strength prediction model based upon artificial neural networks
IEEE Journal on Selected Areas in Communications
When are directional antennas useful in indoor environments
WiNTECH '11 Proceedings of the 6th ACM international workshop on Wireless network testbeds, experimental evaluation and characterization
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Information on site-specific spectrum characteristics is essential to evaluate and improve the performance of wireless networks. However, it is usually very costly to obtain accurate spectrum-condition information in heterogeneous wireless environments. This paper presents a novel spectrum-survey system, called Sybot (Spectrum survey robot), that guides network engineers to efficiently monitor the spectrum condition (e.g., RSS) of WiFi networks. Sybot effectively controls mobility and employs three disparate monitoring techniques - complete, selective, and diagnostic - that help produce and maintain an accurate spectrum-condition map for challenging indoor WiFi networks. By adaptively triggering the most suitable of the three techniques, Sybot captures spatio-temporal changes in spectrum condition. Moreover, based on the monitoring results, Sybot automatically determines several key survey parameters, such as site-specific measurement time and space granularities. Sybot has been prototyped with a commodity IEEE 802.11 router and Linux OS, and experimentally evaluated, demonstrating its ability to generate accurate spectrum-condition maps while reducing the measurement effort (space, time) by more than 56%.