TY - GEN
T1 - MUTE
T2 - 2014 11th Annual IEEE International Conference on Sensing, Communication, and Networking, SECON 2014
AU - Bejarano, Oscar
AU - Magistretti, Eugenio
AU - Gurewitz, Omer
AU - Knightly, Edward W.
N1 - Publisher Copyright: © 2014 IEEE.
PY - 2014/12/16
Y1 - 2014/12/16
N2 - In this paper, we present the design, implementation, and evaluation of the novel downlink Multi-User MIMO sounding protocol called MUTE. Our protocol decouples the sounding set selection used to collect Channel State Information (CSI), from the transmission set selection in order to minimize or even eliminate the overhead associated with sounding, while maximizing user selection performance. To this end, MUTE exploits channel statistics to all the different users to predict whether a particular user's channel will remain sufficiently stable, thereby allowing the access point to preclude channel sounding before a MU-MIMO transmission. We show that in indoor WLANs, MUTE can reduce sounding overhead by close to 73% under certain conditions while minimizing rate performance losses due to inaccurate channel estimation.
AB - In this paper, we present the design, implementation, and evaluation of the novel downlink Multi-User MIMO sounding protocol called MUTE. Our protocol decouples the sounding set selection used to collect Channel State Information (CSI), from the transmission set selection in order to minimize or even eliminate the overhead associated with sounding, while maximizing user selection performance. To this end, MUTE exploits channel statistics to all the different users to predict whether a particular user's channel will remain sufficiently stable, thereby allowing the access point to preclude channel sounding before a MU-MIMO transmission. We show that in indoor WLANs, MUTE can reduce sounding overhead by close to 73% under certain conditions while minimizing rate performance losses due to inaccurate channel estimation.
UR - http://www.scopus.com/inward/record.url?scp=84921023846&partnerID=8YFLogxK
U2 - https://doi.org/10.1109/SAHCN.2014.6990336
DO - https://doi.org/10.1109/SAHCN.2014.6990336
M3 - Conference contribution
T3 - 2014 11th Annual IEEE International Conference on Sensing, Communication, and Networking, SECON 2014
SP - 135
EP - 143
BT - 2014 11th Annual IEEE International Conference on Sensing, Communication, and Networking, SECON 2014
Y2 - 30 June 2014 through 3 July 2014
ER -