Proceedings of the seventeenth ACM symposium on Operating systems principles
OFDM and MC-CDMA for Broadband Multi-User Communications, WLANs and Broadcasting
OFDM and MC-CDMA for Broadband Multi-User Communications, WLANs and Broadcasting
Weighted coloring based channel assignment for WLANs
ACM SIGMOBILE Mobile Computing and Communications Review
Partially overlapped channels not considered harmful
SIGMETRICS '06/Performance '06 Proceedings of the joint international conference on Measurement and modeling of computer systems
Distributed channel management in uncoordinated wireless environments
Proceedings of the 12th annual international conference on Mobile computing and networking
The need for cross-layer information in access point selection algorithms
Proceedings of the 6th ACM SIGCOMM conference on Internet measurement
MDG: measurement-driven guidelines for 802.11 WLAN design
Proceedings of the 13th annual ACM international conference on Mobile computing and networking
A case for adapting channel width in wireless networks
Proceedings of the ACM SIGCOMM 2008 conference on Data communication
Proceedings of the 8th ACM SIGCOMM conference on Internet measurement
Cross-layer wireless bit rate adaptation
Proceedings of the ACM SIGCOMM 2009 conference on Data communication
Frequency-aware rate adaptation and MAC protocols
Proceedings of the 15th annual international conference on Mobile computing and networking
An empirical study on achievable throughputs of IEEE 802.11n devices
WiOPT'09 Proceedings of the 7th international conference on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks
Fairness and Throughput Trade-Off Analysis for UMTS WCDMA Network Planning
Wireless Personal Communications: An International Journal
A simple transmit diversity technique for wireless communications
IEEE Journal on Selected Areas in Communications
The impact of channel bonding on 802.11n network management
Proceedings of the Seventh COnference on emerging Networking EXperiments and Technologies
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Channel Bonding (CB) combines two adjacent frequency bands to form a new, wider band to facilitate high data rate transmissions in MIMO-based 802.11n networks. However, the use of a wider band with CB can exacerbate interference effects. Furthermore, CB does not always provide benefits in interference-free settings, and can even degrade performance in some cases. We conduct an in-depth, experimental study to understand the implications of CB. Based on this study we design an auto-configuration framework, ACORN, for enterprise 802.11n WLANs. ACORN integrates the functions of user association and channel allocation, since our study reveals that they are tightly coupled when CB is used. We show that the channel allocation problem with the constraints of CB is NP-complete. Thus, ACORN uses an algorithm that provides a worst case approximation ratio of [EQUATION] with Δ being the maximum node degree in the network. We implement ACORN on our 802.11n testbed. Our experiments show that ACORN (i) outperforms previous approaches that are agnostic to CB constraints; it provides per-AP throughput gains from 1.5x to 6x and (ii) in practice, its channel allocation module achieves an approximation ratio much better than [EQUATION].