
Автор: Yifei Yuan, Zhifeng Yuan
Издательство: CRC Press
Год: 2023
Страниц: 352
Язык: английский
Формат: pdf (true)
Размер: 87.5 MB
This book provides detailed descriptions of downlink non-orthogonal multiple transmissions and uplink non-orthogonal multiple access (NOMA) from the aspects of majorly used 5G new radio scenarios and system performance. For the downlink, the discussion focuses on the candidate schemes in 3GPP standards which are not only applicable to unicast services but also to broadcast/multicast scenarios. For the uplink, the main target scenario is massive machine-type communications where grant-free transmission can reduce signaling overhead, power consumption of devices and access delays. The design principles of several uplink NOMA schemes are discussed in-depth, together with the analysis of their performances and receiver complexities. In the communications industry, greater interest is seen in the innovative upgrade of the systems by integrating advanced wireless and network technologies of 5G.