Open Access
Jello: Dynamic Spectrum Sharing in Digital Homes
TLDR
Jello, a distributed dynamic spectrum access system based on noncontiguous OFDMA to provide robust, high-bandwidth communication for consumer wireless devices is developed and it is shown that Jello can significantly increase spectrum utilization while reducing media disruption.Abstract:
Wireless devices are being increasingly deployed in digital homes to deliver demanding applications such as highquality streaming media. To avoid costly interference, they can use frequency-agile hardware to detect and utilize unoccupied wireless spectrum ranges. The challenge is how to manage spectrum among a variety of heterogeneous consumer devices efficiently without expensive control hardware or disrupting ongoing transmissions. We develop Jello, a distributed dynamic spectrum access system based on noncontiguous OFDMA to provide robust, high-bandwidth communication for consumer wireless devices. We implement a Jello prototype on a 7-node GNU Radio testbed. In this Jello demo, we will run three parallel transmissions with timevarying loads. We show that Jello can significantly increase spectrum utilization while reducing media disruption.read more
Citations
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Proceedings ArticleDOI
A distributed resource management framework for interference mitigation in OFDMA femtocell networks
Jongwon Yoon,Mustafa Y. Arslan,Karthikeyan Sundaresan,Srikanth V. Krishnamurthy,Suman Banerjee +4 more
TL;DR: This work extensively evaluate two solutions integrated with RADION, a distributed resource management framework that effectively manages interference across femtocells, both via prototype implementation and simulations and quantify their performance in terms of quick and efficient self-organization.
Journal ArticleDOI
Self-Organizing Resource Management Framework in OFDMA Femtocells
Jongwon Yoon,Mustafa Y. Arslan,Karthikeyan Sundaresan,Srikanth V. Krishnamurthy,Suman Banerjee +4 more
TL;DR: This work proposes RADION, a distributed resource management framework that effectively manages interference across femtocells and implements RADION on a real WiMAX femtocell testbed deployed in a typical indoor setting.
Journal ArticleDOI
Ez-Channel
TL;DR: Ez-Channel is introduced, a novel MAC protocol that parsimoniously utilizes the OFDM sub-carriers to perform channelization and assignment of sub-channels to competing links to eliminate the need for a centralized controller and to avoid an overwhelming amount of information exchange.
Journal ArticleDOI
Characterization of Interference in OFDMA Small-Cell Networks
Jongwon Yoon,Mustafa Y. Arslan,Karthikeyan Sundaresan,Srikanth V. Krishnamurthy,Suman Banerjee +4 more
TL;DR: The impact of various system design choices on interference in OFDMA femtocell deployments is characterized and several implications on the choice of system design features for multicell operations are discussed.
Resource allocation techniques to improve the performance of wireless networks
TL;DR: A WLAN management system – called ACORN – is proposed that not only allocates orthogonal channels to 802.11n access points but also makes intelligent user association decisions to significantly improve aggregate WLAN throughput.
References
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Proceedings ArticleDOI
Supporting demanding wireless applications with frequency-agile radios
TL;DR: Jello is described, a MAC overlay where devices sense and occupy unused spectrum without central coordination or dedicated radio for control, and it is shown that over time, spectrum fragmentation can significantly reduce usable spectrum in the system.