Collaborative radio resource allocation for the downlink of multi-cell multi-carrier systems

Collaborative radio resource allocation for the downlink of multi-cell multi-carrier systems
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多小区多载波系统下行链路的协作无线资源分配

DOI:
10.1049/iet-com.2012.0282
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发表时间:
2013
期刊:
影响因子:
1.6
通讯作者:
Jalili B
Jalili B
中科院分区:
计算机科学4区
文献类型:
--
作者:
Jalili B

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这项研究调查了在缺乏集中控制单元的情况下,多载波蜂窝网络下行链路中相邻基站之间的合作,这是未来无线网络的一个定义特征。提出了一种新的在三个相邻基站群之间协作分配资源的方案。在该方案中,初始计算的结果在相邻小区之间共享,然后由每个小区本地独立地做出调度决策。该方案不需要复杂的迭代计算。该信息在每个调度周期期间仅交换一次,从而减少了回程链路上的开销。该方案以分布式方式实现。基于仿真的性能分析表明,对于多载波系统,特别是对于位于小区边缘附近的用户,所提出的相邻基站之间的协作资源分配方案是有效的。
This study investigates collaboration among neighbouring base stations for the downlink of multi‐carrier cellular networks, in the absence of a centralised control unit, which is a defining characteristic of future wireless networks. The authors propose a novel scheme for collaboration in resource allocation among a cluster of three neighbouring base stations. In this scheme, the results of an initial calculation are shared among neighbouring cells, then the scheduling decision is made locally and independently by each cell. This scheme does not require complex and iterative calculation. The information is exchanged only once during each scheduling epoch, which results in reduced overhead on the backhaul links. The scheme is implemented in a distributed manner. Simulation‐based performance analysis demonstrates effectiveness of the proposed collaborative resource allocation scheme among the neighbouring base stations for multi‐carrier systems, particularly for the users located near the cell edges.
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