Simulating LTE Cellular Systems: An Open-Source Framework
Simulating LTE Cellular Systems: An Open-Source Framework
复制标题
DOI：
10.1109/tvt.2010.2091660
复制
发表时间：
2011-02-01
影响因子：
6.8
通讯作者：
Camarda, Pietro
中科院分区：
文献类型：
--
作者：
Piro, Giuseppe;Grieco, Luigi Alfredo;Camarda, Pietro
长期演进（LTE）代表用于提供宽带无处不在的互联网接入的新兴且有前途的技术。因此，一些研究小组正在试图优化其性能。不幸的是，目前，据我们所知，没有开源的仿真平台，科学界可以用来评估整个LTE系统的性能，是免费提供的。缺乏共同的参考模拟器无助于研究人员的工作，并对不同研究小组声称的结果的比较造成限制。为了弥补这一差距，本文提出了开源框架LTE-Sim，以提供LTE网络的完整性能验证。LTE-Sim已经被设想为模拟多小区/多用户环境中的上行链路和下行链路调度策略，考虑用户移动性、无线电资源优化、频率重用技术、自适应调制和编码模块以及与工业和科学界非常相关的其他方面。所提出的模拟器的有效性已经过测试和验证，考虑1）软件可扩展性测试，分析内存和仿真时间的要求;和2）一个现实的LTE网络的性能评估，提供了知名的调度策略之间的比较。
Long-term evolution (LTE) represents an emerging and promising technology for providing broadband ubiquitous Internet access. For this reason, several research groups are trying to optimize its performance. Unfortunately, at present, to the best of our knowledge, no open-source simulation platforms, which the scientific community can use to evaluate the performance of the entire LTE system, are freely available. The lack of a common reference simulator does not help the work of researchers and poses limitations on the comparison of results claimed by different research groups. To bridge this gap, herein, the open-source framework LTE-Sim is presented to provide a complete performance verification of LTE networks. LTE-Sim has been conceived to simulate uplink and downlink scheduling strategies in multicell/multiuser environments, taking into account user mobility, radio resource optimization, frequency reuse techniques, the adaptive modulation and coding module, and other aspects that are very relevant to the industrial and scientific communities. The effectiveness of the proposed simulator has been tested and verified considering 1) the software scalability test, which analyzes both memory and simulation time requirements; and 2) the performance evaluation of a realistic LTE network providing a comparison among well-known scheduling strategies.