Power Control in Wireless Cellular Networks
Power Control in Wireless Cellular Networks
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DOI：
10.1561/1300000009
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发表时间：
2008-06
期刊：
影响因子：
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通讯作者：
M. Chiang;P. Hande;T. Lan;C. Tan
中科院分区：
文献类型：
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作者：
M. Chiang;P. Hande;T. Lan;C. Tan
无线蜂窝网络中的发射功率是干扰、能量和连通性管理中的关键自由度。蜂窝网络的上行链路和下行链路中的功率控制已经被广泛研究，特别是在过去的15年中，并且一些结果已经使得数字蜂窝技术能够持续演进和产生重大影响。本调查提供了一个全面的讨论模型，算法，分析和方法，在这个庞大的和不断增长的文献。它开始与广泛的功率控制问题配方的分类，并从基本配方的发展到更复杂的。当发射功率是优化变量的唯一集合时，首先给出固定SIR的算法，然后转向其鲁棒版本以及SIR和功率的联合优化。其次是机会主义和非合作的功率控制。然后对联合功率控制与波束形成模式、基站分配、频谱分配、发射调度等进行了逐一分析。在整个调查中，我们强调使用数学语言和工具，在功率控制的研究，包括优化理论，控制理论，博弈论和线性代数。在最后一节中讨论了一些算法在操作网络中的实际实现。正如在大多数章节的结尾处提出的开放问题所示，在蜂窝网络中的功率控制领域，仍然有许多未被探索的方向和未解决的问题，这些问题在理论上仍然具有挑战性和实际意义。
Transmit power in wireless cellular networks is a key degree of freedom in the management of interference, energy, and connectivity. Power control in both the uplink and downlink of a cellular network has been extensively studied, especially over the last 15 years, and some of the results have enabled the continuous evolution and significant impact of the digital cellular technology. This survey provides a comprehensive discussion of the models, algorithms, analysis, and methodologies in this vast and growing literature. It starts with a taxonomy of the wide range of power control problem formulations, and progresses from the basic formulation to more sophisticated ones. When transmit power is the only set of optimization variables, algorithms for fixed SIR are presented first, before turning to their robust versions and joint SIR and power optimization. This is followed by opportunistic and non-cooperative power control. Then joint control of power together with beamforming pattern, base station assignment, spectrum allocation, and transmit schedule is surveyed\break one-by-one. Throughout the survey, we highlight the use of mathematical language and tools in the study of power control, including optimization theory, control theory, game theory, and linear algebra. Practical implementations of some of the algorithms in operational networks are discussed in the concluding section. As illustrated by the open problems presented at the end of most chapters, in the area of power control in cellular networks, there are still many under-explored directions and unresolved issues that remain theoretically challenging and practically important..