Grouping Based Uplink Resource Allocation for Massive M2M Communications over LTE-A

Shaoyi Xu, Junlong Li, X. Qin
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引用次数: 2

Abstract

Deployment of massive machine type communication devices (MTCDs) in the LTE-A network may incur signaling and traffic congestion during the random access (RA) and uplink scheduling. To overcome these problems, a grouping based RA and uplink scheduling scheme is proposed in this paper. The group leader will initiate RA and apply for the uplink transmission resources on behalf of the group members. Specifically, a second group paging scheme is designed to further reduce the access delay and increase the access probability. Implementation details are described in a practical LTE-A system and simulations prove that our proposed approach outperforms the traditional methods with respect to the access probability, access time delay, collision probability and fairness.
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基于分组的LTE-A海量M2M通信上行资源分配
在LTE-A网络中部署大量mtcd (machine type communication device),可能会在RA (random access)和上行调度过程中产生信令和流量拥塞。为了克服这些问题,本文提出了一种基于分组的RA和上行链路调度方案。由组长发起RA,代表组成员申请上行传输资源。具体地说,设计了第二组分页方案,以进一步降低访问延迟,提高访问概率。在一个实际的LTE-A系统中描述了实现细节,仿真结果表明,我们提出的方法在接入概率、接入时延、碰撞概率和公平性方面都优于传统方法。
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