Designing femtocell exclusion zones to minimize power in a heterogeneous network
Designing femtocell exclusion zones to minimize power in a heterogeneous network
复制标题
设计毫微微蜂窝基站禁区以最大限度地减少异构网络中的功耗
DOI：
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发表时间：
2014
期刊：
影响因子：
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通讯作者：
Teng Joon Lim
中科院分区：
文献类型：
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作者：
Chenlong Jia;Teng Joon Lim
在本文中，我们提出了在两层异质网络中每个毫微微小区周围设置一个隔离区，在这个隔离区中，宏用户可以享受对一个频段的独占无干扰接入。毫微微用户和该区域以外的宏用户共享剩余的频谱资源。隔离区是以毫微微基站为中心的盘，因为这里我们仅考虑闭路接入毫微微小区，这意味着毫微微小区内的宏用户不能被卸载到毫微微基站。在假定宏用户专用带宽与宏用户处于隔离区的平均概率成正比的情况下，找到了在满足所有用户中断约束的情况下最小化宏基站功率消耗的最优隔离区半径。
In this paper, we propose an exclusion zone around each femtocell in a two-tier heterogeneous network, in which macro users enjoy exclusive interference-free access to a frequency band. The femto users, and macro users outside this region, share the remaining spectrum resource. The exclusion zone is a disc centered on the femto base station because here we only consider closed-access femtocells, meaning that the macro users within a femtocell cannot be off-loaded to the femto base station. Under the assumption that the bandwidth dedicated to macro users is proportional to the average probability that a macro user lies in the exclusion zone, the optimal exclusion zone radius that minimizes macro base station power consumption while satisfying all users' outage constraints is found.