TY - GEN
T1 - Optimal adaptive uplink attenuation algorithms for WCDMA femtocell
AU - Wang, He
AU - Zhao, Ming
AU - Reed, Mark C.
PY - 2011
Y1 - 2011
N2 - Femtocells are assuming an increasing important role to extend the cellular network coverage and provide high speed data service for indoor environments. To cope with the extreme interfering cases in the WCDMA uplink scenario, Home NodeB (HNB) receivers need to employ uplink attenuation at the RF frontend to suppress the interfering signals introduced by unattached co-channel users, e.g., a penetrating signal from macro-connected users in the proximity. The optimal level of uplink attenuation at the HNB receiver should be designed to balance the requirements between the noise rise limitation in HNB and maximum transmit power cap for the femto-connected users. In this paper, we introduce two optimal adaptive schemes that apply the minimum and necessary level of attenuation to the received signal and show the outage probability improvement by the method of simulation.
AB - Femtocells are assuming an increasing important role to extend the cellular network coverage and provide high speed data service for indoor environments. To cope with the extreme interfering cases in the WCDMA uplink scenario, Home NodeB (HNB) receivers need to employ uplink attenuation at the RF frontend to suppress the interfering signals introduced by unattached co-channel users, e.g., a penetrating signal from macro-connected users in the proximity. The optimal level of uplink attenuation at the HNB receiver should be designed to balance the requirements between the noise rise limitation in HNB and maximum transmit power cap for the femto-connected users. In this paper, we introduce two optimal adaptive schemes that apply the minimum and necessary level of attenuation to the received signal and show the outage probability improvement by the method of simulation.
UR - http://www.scopus.com/inward/record.url?scp=84863127282&partnerID=8YFLogxK
U2 - 10.1109/GLOCOM.2011.6133726
DO - 10.1109/GLOCOM.2011.6133726
M3 - Conference contribution
SN - 9781424492688
T3 - GLOBECOM - IEEE Global Telecommunications Conference
BT - 2011 IEEE Global Telecommunications Conference, GLOBECOM 2011
T2 - 54th Annual IEEE Global Telecommunications Conference: "Energizing Global Communications", GLOBECOM 2011
Y2 - 5 December 2011 through 9 December 2011
ER -