Despite the recent advances in broadband penetration and accessibility, broadcasting networks continue to be the most efficient way for delivering media content to large areas independently of the user density. Nevertheless, a convergence of broadcasting services into the broadband networks is foreseen. In this context, Layered Division Multiplexing (LDM) allows the joint provision of unicast, multicast, and broadcast services in mobile cells infrastructure. Despite the success of LDM in broadcasting infrastructure, its practical application in Long Term Evolution networks providing Evolved Multimedia Broadcast Multicast Services (LTE eMBMS) and 5G-MBMS is more difficult. In this paper, we experimentally quantify the cell-interference and its impact on the network performance and Quality of Service. Our experiments reveal that the inter-cell interference margin for LTE eMBMS is about 3 dB higher compared to traditional LTE networks. If a layered architecture is incorporated this higher inter-cell interference would cause a reduction of approximately 19% of the Enhanced Layer (Lower Layer) coverage.

中文翻译：

---

基于分层复用的新一代无线网络实验评估


尽管最近在宽带普及率和可访问性方面取得了进步，但广播网络仍然是向大区域传送媒体内容的最有效方式，而与用户密度无关。尽管如此，广播服务将融合到宽带网络中是可以预见的。在这种情况下，分层复用 (LDM) 允许在移动小区基础设施中联合提供单播、多播和广播服务。尽管LDM在广播基础设施方面取得了成功，但其在提供演进多媒体广播多播服务（LTE eMBMS）和5G-MBMS的长期演进网络中的实际应用更加困难。在本文中，我们通过实验量化了小区干扰及其对网络性能和服务质量的影响。我们的实验表明，与传统 LTE 网络相比，LTE eMBMS 的小区间干扰裕度高出约 3 dB。如果采用分层架构，这种较高的小区间干扰将导致增强层（较低层）覆盖范围减少约 19%。