TY - GEN
T1 - Enhanced spatial reuse in multi-cell WLANs
AU - Bonald, Thomas
AU - Ibrahim, Ali
AU - Roberts, James
PY - 2009/10/12
Y1 - 2009/10/12
N2 - When IEEE 802.11 access points (APs) share the same channel in a multi-cell WLAN, their downlink transmissions can interfere. Typically, an AP whose scheduled transmission to some user is blocked by another cell will apply the CSMA/CA back-off algorithm and continue to make reattempts to the same user. Through analytical models and simulations, we demonstrate that significant capacity gains can be attained by choosing an alternative destination for the reattempt. Results demonstrate that a simple random choice of alternative destination brings almost the same gain as a more sophisticated algorithm that seeks to maximize spatial reuse.
AB - When IEEE 802.11 access points (APs) share the same channel in a multi-cell WLAN, their downlink transmissions can interfere. Typically, an AP whose scheduled transmission to some user is blocked by another cell will apply the CSMA/CA back-off algorithm and continue to make reattempts to the same user. Through analytical models and simulations, we demonstrate that significant capacity gains can be attained by choosing an alternative destination for the reattempt. Results demonstrate that a simple random choice of alternative destination brings almost the same gain as a more sophisticated algorithm that seeks to maximize spatial reuse.
U2 - 10.1109/INFCOM.2009.5062200
DO - 10.1109/INFCOM.2009.5062200
M3 - Conference contribution
AN - SCOPUS:70349695995
SN - 9781424435135
T3 - Proceedings - IEEE INFOCOM
SP - 2626
EP - 2630
BT - IEEE INFOCOM 2009 - The 28th Conference on Computer Communications
T2 - 28th Conference on Computer Communications, IEEE INFOCOM 2009
Y2 - 19 April 2009 through 25 April 2009
ER -