Stride Scheduling: Deterministic Proportional- Share Resource Management
Stride Scheduling: Deterministic Proportional- Share Resource Management
An overlay MAC layer for 802.11 networks
Proceedings of the 3rd international conference on Mobile systems, applications, and services
Design and evaluation of a new MAC protocol for long-distance 802.11 mesh networks
Proceedings of the 11th annual international conference on Mobile computing and networking
The design and evaluation of network power scheduling for sensor networks
The design and evaluation of network power scheduling for sensor networks
WIMOB '06 Proceedings of the 2006 IEEE International Conference on Wireless and Mobile Computing, Networking and Communications
Beyond pilots: keeping rural wireless networks alive
NSDI'08 Proceedings of the 5th USENIX Symposium on Networked Systems Design and Implementation
An adaptive, high performance mac for long-distance multihop wireless networks
Proceedings of the 14th ACM international conference on Mobile computing and networking
WiMAX Handbook - 3 Volume Set
Experiences in using WiFi for rural internet in India
IEEE Communications Magazine
Joint RTS/CTS and time slotting for interference mitigation in multi-BSS 802.11 wireless LANs
Computers and Electrical Engineering
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WiFi has been promoted as an affordable technology that can provide broadband Internet connectivity to poor and sparsely populated regions. A growing number of deployments, some of substantial scale, are making use of WiFi to extend connectivity into rural areas. However, the vast majority of the 3.5 billion people living in rural villages [1] are still unserved. To reach these people, new technology must be developed to make small rural wireless Internet service providers (WISPs) profitable. We have identified radio towers as the largest expense for WISPs; to reduce or eliminate this barrier to entry, we propose a novel point-to-multipoint deployment topology that takes advantage of "natural towers" such as hills and mountains to provide connectivity even over great distances. We make this design practical with a new TDMA MAC protocol called JaldiMAC that (i) enables and is optimized for point-to-multipoint deployments, (ii) adapts to the asymmetry of Internet traffic, and (iii) provides loose quality of service guarantees for latency sensitive traffic without compromising fairness. To our knowledge, JaldiMAC is the first integrated solution that combines all of these elements. Our evaluation of JaldiMAC suggests that it fulfills its design goals. Our scheduler is able to provide a 71% decrease in jitter and superior latency characteristics in exchange for a 5% increase in average RX/TX switches, as compared to a stride scheduler. Overall, we find that JaldiMAC performs surprisingly well at this early stage.