An experimental study on the capture effect in 802.11a networks
Proceedings of the second ACM international workshop on Wireless network testbeds, experimental evaluation and characterization
Efficient channel-aware rate adaptation in dynamic environments
Proceedings of the 6th international conference on Mobile systems, applications, and services
Harnessing exposed terminals in wireless networks
NSDI'08 Proceedings of the 5th USENIX Symposium on Networked Systems Design and Implementation
Revamping the IEEE 802.11a PHY simulation models
Proceedings of the 11th international symposium on Modeling, analysis and simulation of wireless and mobile systems
Using physical layer emulation to optimize and evaluate mobile and wireless systems
Proceedings of the 5th Annual International Conference on Mobile and Ubiquitous Systems: Computing, Networking, and Services
Improved modeling of IEEE 802.11a PHY through fine-grained measurements
Computer Networks: The International Journal of Computer and Telecommunications Networking
"RF in the Jungle": effect of environment assumptions on wireless experiment repeatability
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Enhancing ASSERT: making an accurate testbed friendly
WiNTECH '11 Proceedings of the 6th ACM international workshop on Wireless network testbeds, experimental evaluation and characterization
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Researchers and developers have long faced a fundamental tension between the experimental realism of wireless testbeds on one hand, and the control and repeatability of simulation on the other hand. This thesis introduces physical layer wireless net work emulation---a new approach to wireless network experimentation that balances the stark tradeoff of traditional alternatives by enabling both realistic and repeatable experimentation. The design and implementation of a functional wireless emulator are presented along with a discussion of how this implementation overcomes the challenges necessary to meet operational requirements. In particular, solutions to the problems of developing a hardware architecture for emulation, and software control of that architecture will be presented. To illustrate the power of physical layer wireless network emulation, case studies are presented. First, physical layer emulation is used to analyze several aspects of wireless LAN link-level behavior. Physical layer emulation is then used to investigate wireless LAN access point selection performance, and to develop improvements. This thesis shows that---compared to traditional approaches---physical layer wireless network emulation provides a better understanding of real-world wireless network performance, shortens the development cycle of wireless networking software, and facilitates the deployment of research into operational wireless networks without sacrificing a controlled experimental environment.