光通信研究, 2018 (1): 74, 网络出版: 2018-04-09  

超密集网络中基于用户路径的资源预留算法

Resource Reservation Algorithm based on User Path in Ultra-Dense Network
作者单位
1 重庆工程学院 电子与物联网学院,重庆 400056
2 重庆邮电大学移通学院 通信与信息工程学院,重庆 401520
3 山东省邮电规划设计院,济南 250101
摘要
针对超密集网络中移动用户的干扰管理和资源分配问题,提出了一种基于用户路径的资源预留算法,该算法首先以用户从起点到终点的最短路径为度量,进行一个最优路径的选择,在最优路径的选择过程中,考虑了用户必须经过的街区和不可能经过的街区;然后提出一种基于最优路径的资源预留和资源复用算法,该算法首先设计资源分配和资源预留的步骤,然后再针对所有用户进行资源复用的计算,以提高频谱资源的利用率。仿真结果表明,所提算法可以在用户移动的过程中,在保障用户较低掉话率的基础上,减小Femtocell 基站间的干扰并提升系统性能。
Abstract
Aiming to the problem of interference management and resource allocation for mobile users in an ultra-dense network, a User Path based Resource Reservation (UPRR) algorithm is proposed in this paper. The scheme firstly takes the shortest path from the starting point to the end point as the metric to select an optimal path. In the selection process of the optimal path, this paper considers the condition that whether the blocks permit users pass through or not. Next the algorithm of resource reservation and resource reuse based on the optimal path is put forward, which firstly designs the steps of resource allocation and reservation, and then computes the resource reuse for all users in order to improve the utilization of spectrum resources. The simulation results show that the proposed algorithm can reduce the interference in the Femtocell Base Station (FBS) and improve the system performance on the basis of guaranteeing the low outage probability for mobile users.

孙霞, 李星沛, 王显坤. 超密集网络中基于用户路径的资源预留算法[J]. 光通信研究, 2018, 44(1): 74. SUN Xia, LI Xing-pei, WANG Xian-kun. Resource Reservation Algorithm based on User Path in Ultra-Dense Network[J]. Study On Optical Communications, 2018, 44(1): 74.

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