TY - GEN
T1 - COPA
T2 - 11th ACM Conference on Emerging Networking Experiments and Technologies, CoNEXT 2015
AU - Nikolaidis, Georgios
AU - Handley, Mark
AU - Jamieson, Kyle
AU - Karp, Brad
N1 - Publisher Copyright:
© 2015 Copyright held by the owner/author(s). Publication rights licensed to ACM.
PY - 2015/12/1
Y1 - 2015/12/1
N2 - As 802.11 wireless networks proliferate, interference becomes increasingly severe, particularly in dense, urban environments. These networks are usually operated by different users (e.g., tenants in apartments). In this paper, we develop techniques for mitigating interference between such loosely cooperating 802.11 MIMO APs and clients, which do not share a high-speed wired backplane or central controller. We propose CoOperative Power Allocation (COPA), an approach to concurrent wireless medium access that combines fine-grained, per-subcarrier power allocation, nulling, and multi-stream transmission to claim capacity that statusquo approaches cannot. Jointly turning these knobs allows COPA to allocate subcarriers to senders partially, rather than all-or-nothing, and to embrace a measure of interference when doing so increases capacity.
AB - As 802.11 wireless networks proliferate, interference becomes increasingly severe, particularly in dense, urban environments. These networks are usually operated by different users (e.g., tenants in apartments). In this paper, we develop techniques for mitigating interference between such loosely cooperating 802.11 MIMO APs and clients, which do not share a high-speed wired backplane or central controller. We propose CoOperative Power Allocation (COPA), an approach to concurrent wireless medium access that combines fine-grained, per-subcarrier power allocation, nulling, and multi-stream transmission to claim capacity that statusquo approaches cannot. Jointly turning these knobs allows COPA to allocate subcarriers to senders partially, rather than all-or-nothing, and to embrace a measure of interference when doing so increases capacity.
KW - Interference
KW - MIMO
KW - Nulling
KW - OFDM
KW - Power Allocation
UR - http://www.scopus.com/inward/record.url?scp=84995783751&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84995783751&partnerID=8YFLogxK
U2 - 10.1145/2716281.2836103
DO - 10.1145/2716281.2836103
M3 - Conference contribution
AN - SCOPUS:84995783751
T3 - Proceedings of the 11th ACM Conference on Emerging Networking Experiments and Technologies, CoNEXT 2015
BT - Proceedings of the 11th ACM Conference on Emerging Networking Experiments and Technologies, CoNEXT 2015
PB - Association for Computing Machinery, Inc
Y2 - 1 December 2015 through 4 December 2015
ER -