|
- 2015
一种带QoS约束的资源分配和ABS功率控制算法
|
Abstract:
摘要 异构网络中,宏基站在时域选取几乎空白子帧(ABS),降低功率传输,可有效减小Pico基站扩展范围(CRE)内用户受到的干扰.但鲜有文献联合考虑功率降低和用户的服务质量(QoS)约束.本文提出一种满足用户QoS约束条件下联合网络资源分配和宏基站ABS期间功率控制的算法(RA-APC),算法在资源分配和ABS功率控制之间来回迭代求解.仿真结果表明,该算法收敛速度快,能够实现网络资源合理利用,有效提升系统整体性能.
[1] | Lopez-Perez D, Guvenc I, De La Roche G, et al. Enhanced intercell interference coordination challenges in heterogeneous networks[J]. Wireless Communications, IEEE, 2011, 18(3):22-30. |
[2] | Andrews J G, Singh S, Ye Q, et al. An overview of load balancing in HetNets:old myths and open problems[J]. Wireless Communications, IEEE, 2014, 21(2):18-25. |
[3] | Naga Sekhar Kshatriya S, Yerrapareddy S R, Akhtar N, et al. A novel power control scheme for macro-Pico heterogeneous networks with biased association[C]//Communications Workshops (ICC), 2013 IEEE International Conference on. IEEE, 2013:1117-1122. |
[4] | Soret B, Pedersen K I. Macro transmission power reduction for hetnet co-channel deployments[C]//Global Communications Conference (GLOBECOM), 2012 IEEE. IEEE, 2012:4126-4130. |
[5] | 3 GPP. Evolved universal terrestrial radio access (E-UTRA):further advancements for E-UTRA physical layer aspects (Release 9)[R]. Tech Spec 36.814 v9.0.0, March 2010.</p> |
[6] | Deb S, Monogioudis P, Miernik J, et al. Algorithms for enhanced inter-cell interference coordination (eICIC) in LTE HetNets[J]. IEEE/ACM Transactions on Networking (TON), 2014, 22(1):137-150. |
[7] | Pang J, Wang J, Wang D, et al. Optimized time-domain resource partitioning for enhanced inter-cell interference coordination in heterogeneous networks[C]//Wireless Communications and Networking Conference (WCNC), 2012 IEEE. IEEE, 2012:1613-1617. |
[8] | Han R, Feng C, Xia H, et al. Joint power reduction and time-domain scheduling for interference mitigation in macro-pico heterogeneous networks with differential evolution[C]//Vehicular Technology Conference (VTC Spring), 2013 IEEE 77th. IEEE, 2013:1-5. |
[9] | Sung D, Baras J S, Zhu C. Coordinated scheduling and power control for downlink cross-tier interference mitigation in heterogeneous cellular networks[C]//Global Communications Conference (GLOBECOM), 2013 IEEE. IEEE, 2013:3809-3813. |
[10] | Merwaday A, Mukherjee S, Güven? I. Capacity analysis of LTE-Advanced HetNets with reduced power subframes and range expansion[J]. EURASIP Journal on Wireless Communications and Networking, 2014, 2014(1):1-19. |
[11] | Soret B, Pedersen K I. Macro cell muting coordination for non-uniform topologies in LTE-A HetNets[C]//Vehicular Technology Conference (VTC Fall), 2013 IEEE 78th. IEEE, 2013:1-5. |
[12] | Papandriopoulos J, Evans J S. Low-complexity distributed algorithms for spectrum balancing in multi-user DSL networks[C]//Communications, 2006. ICC'06. IEEE International Conference on. IEEE, 2006, 7:3270-3275. |
[13] | Venturino L, Prasad N, Wang X. Coordinated scheduling and power allocation in downlink multicell OFDMA networks[J]. Vehicular Technology, IEEE Transactions on, 2009, 58(6):2835-2848. |
[14] | <p> Damnjanovic A, Montojo J, Wei Y, et al. A survey on 3GPP heterogeneous networks[J]. Wireless Communications, IEEE, 2011, 18(3):10-21. |