Geng Chen, Wenjing Yao, Yinjing Guo, et al. A Joint Sub-Channel and Power Allocation Algorithm in Co-Channel Heterogeneous Femtocell Network[J]. Telecommunications science, 2015, 31(9): 20-27.
DOI:
Geng Chen, Wenjing Yao, Yinjing Guo, et al. A Joint Sub-Channel and Power Allocation Algorithm in Co-Channel Heterogeneous Femtocell Network[J]. Telecommunications science, 2015, 31(9): 20-27. DOI: 10.11959/j.issn.1000-0801.2015236.
A Joint Sub-Channel and Power Allocation Algorithm in Co-Channel Heterogeneous Femtocell Network
A joint sub-channel and power allocation algorithm was proposed to suppress co-channel interference. Power control and handover mechanism could be used to suppress the co-channel cross-tier and intra-tier interference achieved by the power allocation for MU and joint sub-channel and power allocation for FU. Mathematically
the cross-tier handover was formulated as optimizing the network throughput under the constraints of each tier target outage probability and the interference-aware resource allocation was formulated as optimizing the sum rate of FU subject to the constraints of the target data rate of handover MU and interference thresholds to other MU and FU. Theoretical analysis and simulation results show that the sum rate of FU can be increased greatly. Meanwhile
the femtocell network capacity and the number of deployable femtocells can also be improved.
关键词
Keywords
references
Venturino L , Prasad N , Wang X D . An improved iterative water-filling algorithm for multi-cell interference mitigation in downlink OFDMA networks . Proceedings of IEEE 41st Asilomar Conference on Signals, Systems and Computers 2007(ACSSC 2007) , Pacific Grove, USA , 2007 : 1718 ~ 1722
Venturino L , Prasad N , Wang X D . Coordinated scheduling and power allocation in downlink multicell OFDMA networks . IEEE Transactions on Vehicular Technology , 2009 , 58 ( 6 ): 2835 ~ 2848
Zhang H J , Zheng W , Chu X L , et al . Joint subchannel and power allocation in interference-limited OFDMA femtocells with heterogeneous QoS guarantee . Proceedings of 2012 IEEE Global Telecommunications Conference(GLOBECOM 2012) , Anaheim, USA , 2012 : 4572 ~ 4577
Li G Q , Liu H . Downlink radio resource allocation for multi-cell OFDMA system . IEEE Transactions on Wireless Communications , 2006 , 5 ( 12 ): 3451 ~ 3459
Kim J , Cho D H . A joint power and subchannel allocation scheme maximizing system capacity in indoor dense mobile communication systems . IEEE Transactions on Vehicular Technology , 2010 , 59 ( 9 ): 4340 ~ 4353
Trong N D , Khakurel S , Ngoc T L . Joint subchannel assignment a nd power allocation for OFDMA femtocell networks . IEEE Transactions on Wireless Communications , 2014 , 13 ( 1 ): 342 ~ 355
Ngo D T , Khakurel S , Ngoc T L . Distributed subchannel and power allocation for OFDMA-based femtocell networks . Proceedings of IEEE 77th Vehicular Technology Conference (VTC 2013-Spring) , Dresden, Germany , 2013 : 1 ~ 5
Forouzan N , Ghorashi S A . New algorithm for joint subchannel and power allocation in multi-cell OFDMA-based cognitive radio networks . IET Communications , 2014 , 8 ( 4 ): 508 ~ 515
Choi K W , Hossain E , Kim D I . Downlink subchannel and power allocation in multi-cell OFDMA cognitive radio networks . IEEE Transactions on Wireless Communications , 2011 , 10 ( 7 ): 2259 ~ 2271
Abdelnasser A , Hossain E . Joint subchannel and power allocation in two-tier OFDMA HetNets with clustered femtocells . Proceedings of 2013 IEEE International Conference on Communications(ICC 2013) , Budapest,Hungary , 2013 : 6002 ~ 6007
Abdelnasser A , Hossain E . Subchannel and power allocation schemes for clustered femtocells in two-tier OFDMA HetNets . Proceedings of 2013 IEEE International Conference on Communications Workshops (ICC Wkshps 2013) , Budapest,Hungary , 2013 : 1129 ~ 1133
Sharma N , Badheka D , Anpalagan A . Multi-objective subchannel and power allocation in interference-limited two-tier OFDMA femtocell networks . IEEE Systems Journal , 2014 , 12 ( 99 ): 1 ~ 12
Zhao H C , Yang Q H , Gao F F , et al . Distributed adaptive subchannel and power allocation for downlink OFDMA with inter-cell interference coordination . Proceedings of 2010 IEEE Global Telecommunications Conference (GLOBECOM 2010) , Miami, USA , 2010 : 1 ~ 5
Zhang J M , Zhang Z Y , Wu K , et al . Optimal distributed subchannel, rate and power allocation algorithm in OFDM-based two-tier femtocell networks . Proceedings of IEEE 71st Vehicular Technology Conference (VTC 2010-Spring) , Taipei, China , 2010 : 1 ~ 5
Lee J Y , Bae S J , Kwon Y M , et al . Interference analysis for femtocell deployment in OFDMA systems based on fractional frequency reuse . IEEE Wireless Communications Letters , 2011 , 15 ( 4 ): 425 ~ 427
Lee K , Jo O , Cho D H . Cooperative resource allocation for guaranteeing intercell fairness in femtocell networks . IEEE Wireless Communications Letters , 2011 , 15 ( 2 ): 214 ~ 216
Radaydeh R M , Alouini M S . Switched-based interference reduction scheme for open-access overlaid cellular networks . IEEE Transactions on Wireless Communications , 2012 , 11 ( 6 ): 2160 ~ 2172