In this article, we propose a framework for a multi-access edge computing-enhanced heterogeneous network employing massive MIMO transmission and small cells that is designed to mitigate interference, increase throughput, alleviate backhaul capacity pressure, and reduce signaling overhead. We design the information-centric transmission mechanism and discuss possible signal processing and transmission modes. We also demonstrate that channel state information can be pooled at a centralized MEC server, and precoding may be carried out cooperatively among cells to reduce intra-cell and inter-cell interference. A smart caching scheme is proposed to proactively cache content at appropriate base stations in anticipation of the best transmission mode to be used, thereby reducing latency from content retrieval. Moreover, our proposed scheme performs content scheduling to assign the same content requested by different users to the same intervals, eliminating some possible interference and simplifying precoding. Finally, research challenges within the proposed framework are discussed.

中文翻译：

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具有大规模MIMO的MEC增强小蜂窝HetNet框架

在本文中，我们为采用大规模MIMO传输和小型蜂窝的多访问边缘计算增强型异构网络提出了一个框架，该框架旨在减轻干扰，增加吞吐量，减轻回程容量压力并减少信令开销。我们设计了以信息为中心的传输机制，并讨论了可能的信号处理和传输模式。我们还演示了可以在中央MEC服务器上合并信道状态信息，并且可以在小区之间协作进行预编码以减少小区内和小区间干扰。提出了一种智能缓存方案，以在预期要使用的最佳传输模式下在适当的基站上主动缓存内容，从而减少内容检索的延迟。此外，我们提出的方案执行内容调度，以将不同用户所请求的相同内容分配给相同的时间间隔，从而消除了一些可能的干扰并简化了预编码。最后，讨论了拟议框架内的研究挑战。