2015/12/01 by Nassar Ksairi, Stefano Tomasin, Ksairi, Nassar +3
Computer Science · Engineering · #Advanced MIMO Systems Optimization #FOS: Computer and information sciences #Information Theory (cs.IT) #IoT Networks and Protocols #Wireless Communication Networks Research
paper · pdf · doi:10.48550/arxiv.1512.00213
openalex publication_date 2015/12/01 · openalex created_date 2022/10/05 · openalex updated_date 2026/07/28
One of the key requirements for fifth-generation (5G) cellular networks is\ntheir ability to handle densely connected devices with different quality of\nservice (QoS) requirements. In this article, we present multi-service oriented\nmultiple access (MOMA), an integrated access scheme for massive connections\nwith diverse QoS profiles and/or traffic patterns originating from both\nhandheld devices and machine-to-machine (M2M) transmissions. MOMA is based on\na) stablishing separate classes of users based on relevant criteria that go\nbeyond the simple handheld/M2M split, b) class dependent hierarchical spreading\nof the data signal and c) a mix of multiuser and single-user detection schemes\nat the receiver. Practical implementations of the MOMA principle are provided\nfor base stations (BSs) that are equipped with a large number of antenna\nelements. Finally, it is shown that such a\nmassive-multiple-input-multiple-output (MIMO) scenario enables the achievement\nof all the benefits of MOMA even with a simple receiver structure that allows\nto concentrate the receiver complexity where effectively needed.\n