Future cellular networks are expected to support new communication paradigms such as machine-type communication (MTC) services along with human-type communication (HTC) services. This requires base stations to serve a large number of devices in relatively short channel coherence intervals which renders allocation of orthogonal pilot sequence per-device approaches impractical. Furthermore, the stringent power constraints, place-and-play type connectivity and various data rate requirements of MTC devices make it impossible for the traditional cellular architecture to accommodate MTC and HTC services together. Massive multiple-input-multiple-output (MaMIMO) technology has the potential to allow the coexistence of HTC and MTC services, thanks to its inherent spatial multiplexing properties and low transmission power requirements. In this work, we investigate the performance of a single cell under a shared physical channel assumption for MTC and HTC services and propose a novel scheme for sharing the time-frequency resources. The analysis reveals that MaMIMO can significantly enhance the performance of such a setup and allow the inclusion of MTC services into the cellular networks without requiring additional resources.

翻译：预计未来的蜂窝网络将支持机器型通信服务和人型通信服务等新的通信模式,这就要求基地台在相对较短的频道一致性间隔内为大量设备提供服务,从而使每个装置的正方形试点序列分配不切实际;此外,由于电力严格限制、地点和游戏型连接以及MTC设备的各种数据速度要求,传统蜂窝结构无法同时容纳MTC和HTC服务; 大规模多投入-多产出(MIMO)技术有可能允许HTC和MTC服务共存,因为其固有的空间多轴特性和低传输功率要求; 在这项工作中,我们调查单细胞在MTC和HTC服务共同的物理频道假设下的表现,并提出分享时间频率资源的新计划; 分析表明,MIMO可以大大提高这种设置的性能,并允许将MTC服务纳入蜂窝网络,而无需额外资源。