TY - GEN
T1 - Femto-macro cellular interference control with subband scheduling and interference cancelation
AU - Rangan, Sundeep
PY - 2010
Y1 - 2010
N2 - A significant technical challenge in deploying femtocells is controlling the interference from the underlay of femtos onto the overlay of macros. This paper presents a novel interference control method where the macrocell bandwidth is partitioned into subbands, and the short-range femtocell links adaptively allocate their power across the subbands based on a load-spillage power control method. The scheme can improve rate distribution in the macro network while also providing opportunities for short-range communication as well. Moreover, the proposed scheme requires minimal interference coordination communication between the femtos and macros, which is one of the main challenges in femtocell systems. Also, simulations show certain advantages over simpler orthogonalization schemes or power control schemes without subband partitioning. Further modest gains may also be possible with interference cancelation.
AB - A significant technical challenge in deploying femtocells is controlling the interference from the underlay of femtos onto the overlay of macros. This paper presents a novel interference control method where the macrocell bandwidth is partitioned into subbands, and the short-range femtocell links adaptively allocate their power across the subbands based on a load-spillage power control method. The scheme can improve rate distribution in the macro network while also providing opportunities for short-range communication as well. Moreover, the proposed scheme requires minimal interference coordination communication between the femtos and macros, which is one of the main challenges in femtocell systems. Also, simulations show certain advantages over simpler orthogonalization schemes or power control schemes without subband partitioning. Further modest gains may also be possible with interference cancelation.
KW - Cellular systems
KW - Femtocells
KW - Fractional frequency reuse
KW - Interference cancelation
KW - Interference coordination
KW - Wireless communications
UR - http://www.scopus.com/inward/record.url?scp=79951889218&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=79951889218&partnerID=8YFLogxK
U2 - 10.1109/GLOCOMW.2010.5700410
DO - 10.1109/GLOCOMW.2010.5700410
M3 - Conference contribution
AN - SCOPUS:79951889218
SN - 9781424488650
T3 - 2010 IEEE Globecom Workshops, GC'10
SP - 695
EP - 700
BT - 2010 IEEE Globecom Workshops, GC'10
T2 - 2010 IEEE Globecom Workshops, GC'10
Y2 - 5 December 2010 through 10 December 2010
ER -