Distributed Load Balancing through Self Organisation of cell size in cellular systems
Distributed Load Balancing through Self Organisation of cell size in cellular systems
复制标题
通过蜂窝系统中小区大小的自组织实现分布式负载平衡
DOI：
10.1109/pimrc.2012.6362512
复制
发表时间：
2012
期刊：
影响因子：
--
通讯作者：
R. Tafazolli
中科院分区：
文献类型：
--
作者：
A. Imran;E. Yaacoub;M. Imran;R. Tafazolli
小区之间不均匀的业务负载增加了某些小区中的呼叫阻塞率，并导致其他小区中的低资源利用率，从而降低了用户满意度和蜂窝系统的整体性能。各种集中式或半集中式负载均衡（LB）方案已经被提出来科普这个时间持续性问题，然而，未来的蜂窝网络仍然需要完全分布式的自组织（SO）LB解决方案。为此，我们提出了一种新的分布式LB解决方案的基础上开发的自然启发SO系统的原则上的分析框架。提出了一种新的超元概念，将“系统范围阻塞最小化”问题分解为局部子问题，以实现SO分布式求解。所提出的解决方案的性能进行评估，通过系统级仿真的宏小区和毫微微小区为基础的系统。数值结果表明，所提出的解决方案可以减少阻塞的系统接近理想的中央控制（ICC）的LB解决方案。所提出的解决方案的附加优点是它不需要沉重的信令开销。
Uneven traffic load among the cells increases call blocking rates in some cells and causes low resource utilisation in other cells and thus degrades user satisfaction and overall performance of the cellular system. Various centralised or semi centralised Load Balancing (LB) schemes have been proposed to cope with this time persistent problem, however, a fully distributed Self Organising (SO) LB solution is still needed for the future cellular networks. To this end, we present a novel distributed LB solution based on an analytical framework developed on the principles of nature inspired SO systems. A novel concept of super-cell is proposed to decompose the problem of “system-wide blocking minimization” into the local sub-problems in order to enable a SO distributed solution. Performance of the proposed solution is evaluated through system level simulations for both macro cell and femto cell based systems. Numerical results show that the proposed solution can reduce the blocking in the system close to an Ideal Central Control (ICC) based LB solution. The added advantage of the proposed solution is that it does not require heavy signalling overheads.
影响因子：
35.6
作者：
Aliu, Osianoh Glenn;Imran, Ali;Evans, Barry
通讯作者：
Evans, Barry