In this study, a mixed massive random access scheme is considered where part of users transmit both common information and user-specific information, while others only information. scheme, transmitted by index modulation (IM)–aided unsourced (URA), IM-aided sourced (SRA). Practically, URA partitions channel blocks one transmission frame into multiple groups then employs the IM principle to acti...

In this study, a novel cluster index modulation (CIM) scheme, which is based on indexing the available clusters in environment, proposed for future mmWave communication systems. Exploiting fact that system are well separated terms of their angular distribution, we selected best path each them and then performed IM an algorithmic manner to convey information bits. It shown by means large antenna...