Elements of information theory
Elements of information theory
Divert: fine-grained path selection for wireless LANs
Proceedings of the 2nd international conference on Mobile systems, applications, and services
The Horus WLAN location determination system
Proceedings of the 3rd international conference on Mobile systems, applications, and services
ExOR: opportunistic multi-hop routing for wireless networks
Proceedings of the 2005 conference on Applications, technologies, architectures, and protocols for computer communications
Improving loss resilience with multi-radio diversity in wireless networks
Proceedings of the 11th annual international conference on Mobile computing and networking
Self-management in chaotic wireless deployments
Proceedings of the 11th annual international conference on Mobile computing and networking
SHUSH: Reactive Transmit Power Control for Wireless MAC Protocols
WICON '05 Proceedings of the First International Conference on Wireless Internet
Measurement-based models of delivery and interference in static wireless networks
Proceedings of the 2006 conference on Applications, technologies, architectures, and protocols for computer communications
Symphony: synchronous two-phase rate and power control in 802.11 wlans
Proceedings of the 6th international conference on Mobile systems, applications, and services
Peeling the 802.11 onion: separating congestion from physical per
Proceedings of the third ACM international workshop on Wireless network testbeds, experimental evaluation and characterization
Physical Layer Attacks on Unlinkability in Wireless LANs
PETS '09 Proceedings of the 9th International Symposium on Privacy Enhancing Technologies
Transmission power control in body area sensor networks for healthcare monitoring
IEEE Journal on Selected Areas in Communications - Special issue on body area networking: Technology and applications
Optimized network management for energy savings of wireless access networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
Symphony: synchronous two-phase rate and power control in 802.11 WLANs
IEEE/ACM Transactions on Networking (TON)
EURASIP Journal on Wireless Communications and Networking
Link quality analysis and measurement in wireless mesh networks
Ad Hoc Networks
Proceedings of the 2011 ACM SIGCOMM conference on Internet measurement conference
Kyun queue: a sensor network system to monitor road traffic queues
Proceedings of the 10th ACM Conference on Embedded Network Sensor Systems
Joint Transmit Power Control and Rate Adaptation for Wireless LANs
Wireless Personal Communications: An International Journal
| Hi-index | 0.00 |
A wide range of transmit power control (TPC) algorithms have been proposed in recent literature to reduce interference and increase capacity in 802.11 wireless networks. However, few of them have made it to practice. In many cases this gap is attributed to lack of suitable hardware support in wireless cards to implement these algorithms. In particular, many research efforts have indicated that wireless card vendors need to support power control mechanisms in a fine-grained manner - both in the number of possible power levels and the time granularity at which the controls can be applied. In this paper we claim that even if fine-grained power control mechanisms were to be made available by wireless card vendors, algorithms would not be able to properly leverage such degrees of control in typical indoor environments. We prove this claim through rigorous empirical analysis and then build a tunable empirical model (Model-TPC) that can determine the granularity of power control that is actually useful. To illustrate the importance of our solution, we conclude by demonstrating the impact of choice of power control granularity on Internet applications where wireless clients interact with servers on the Internet. We observe that the number of feasible power was found to be between 2-4 for most indoor environments. We believe that the results from this study can serve as the right set of assumptions to build practically realizable TPC algorithms in the future.