TY - CONF

T1 - Enhanced Uplink Carrier Aggregation for LTE-Advanced Femtocells

A1 - Garcia,Luis Guilherme Uzeda

A1 - Sanchez-Moya,Fernando

A1 - Villalba-Espinosa,Juan

A1 - Pedersen,Klaus

A1 - Mogensen,Preben

AU - Garcia,Luis Guilherme Uzeda

AU - Sanchez-Moya,Fernando

AU - Villalba-Espinosa,Juan

AU - Pedersen,Klaus

AU - Mogensen,Preben

PB - I E E E

PY - 2011/9

Y1 - 2011/9

N2 - In this paper we investigate uplink carrier aggregation in the context of dense residential deployments of LTE-Advanced Femtocells. Previous work in the literature based on macro-cells suggested considering UE power limitations to infer which UEs should be allowed to employ multiple component carriers. However, due to the very small radius of femtocells, UEs are not expected to become power-limited at all. We propose a decentralized scheme with limited signalling requirements that incorporates power control information, not only to guide the UE-specific carrier selection procedure, but also to capitalize on the inherent power spectral density and path loss differences in order to minimize inter-cell interference. We present a series of system level simulation results which provide strong evidence that our scheme delivers substantial gains in terms of coverage compared to existing solutions without sacrificing the SINR.

AB - In this paper we investigate uplink carrier aggregation in the context of dense residential deployments of LTE-Advanced Femtocells. Previous work in the literature based on macro-cells suggested considering UE power limitations to infer which UEs should be allowed to employ multiple component carriers. However, due to the very small radius of femtocells, UEs are not expected to become power-limited at all. We propose a decentralized scheme with limited signalling requirements that incorporates power control information, not only to guide the UE-specific carrier selection procedure, but also to capitalize on the inherent power spectral density and path loss differences in order to minimize inter-cell interference. We present a series of system level simulation results which provide strong evidence that our scheme delivers substantial gains in terms of coverage compared to existing solutions without sacrificing the SINR.

UR - http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6093079

U2 - 10.1109/VETECF.2011.6093079

DO - 10.1109/VETECF.2011.6093079

JO - I E E E V T S Vehicular Technology Conference. Proceedings

JF - I E E E V T S Vehicular Technology Conference. Proceedings

SN - 1550-2252

ER -