TY - GEN
T1 - Resource allocation analysis in OFDMA femtocells using fractional frequency reuse
AU - Lee, Taeyoung
AU - Yoon, Jisun
AU - Lee, Sangtae
AU - Shin, Jitae
PY - 2010
Y1 - 2010
N2 - Femtocells are being deployed for coverage extension and higher data rates. However, interference problem between macrocell and femtocells should be solved before massive deployment. In this paper, we analyze the possible cases of frequency resource allocation in the OFDMA femtocell systems using Fractional Frequency Reuse (FFR) in order to minimize the interference between both cells. Under the assumed pre-allocation of macrocell users with the FFR, the allocable cases of sub-bands for the femtocells are investigated. Efficient and practical guidelines for femtocell's resource allocation are suggested with the consideration of macrocell users having a priority over femtocell users and of enhancing overall throughputs. Simulation results show the enhanced throughputs of both macrocell users and combined total users through practical interference-avoidance guidelines.
AB - Femtocells are being deployed for coverage extension and higher data rates. However, interference problem between macrocell and femtocells should be solved before massive deployment. In this paper, we analyze the possible cases of frequency resource allocation in the OFDMA femtocell systems using Fractional Frequency Reuse (FFR) in order to minimize the interference between both cells. Under the assumed pre-allocation of macrocell users with the FFR, the allocable cases of sub-bands for the femtocells are investigated. Efficient and practical guidelines for femtocell's resource allocation are suggested with the consideration of macrocell users having a priority over femtocell users and of enhancing overall throughputs. Simulation results show the enhanced throughputs of both macrocell users and combined total users through practical interference-avoidance guidelines.
KW - Femtocell
KW - Fractional Frequency Reuse (FFR)
KW - Interference management
UR - https://www.scopus.com/pages/publications/78751475113
U2 - 10.1109/PIMRC.2010.5672042
DO - 10.1109/PIMRC.2010.5672042
M3 - Conference contribution
AN - SCOPUS:78751475113
SN - 9781424480166
T3 - IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC
SP - 1224
EP - 1229
BT - 2010 IEEE 21st International Symposium on Personal Indoor and Mobile Radio Communications, PIMRC 2010
T2 - 2010 IEEE 21st International Symposium on Personal Indoor and Mobile Radio Communications, PIMRC 2010
Y2 - 26 September 2010 through 30 September 2010
ER -