Abstract
The 3rd Generation Partnership Project (3GPP) is in the process of developing 5th generation (5G) radio access technology, the so-called new radio (NR). The aim is to achieve the performance requirements forIMT-2020 radio interface technology. In this paper, we focus on the analysis of the transmission of 5G NR uplink physical channels, such as physical uplink shared channel (PUSCH) and physical uplink control channel (PUCCH), dedicated for data and control channels, respectively, as specified in the 3GPP standard, using digital signal processing (DSP)-assisted frequency division multiple access (FDMA) and time division multiple access (TDMA) channel aggregation techniques on an analogue radio-over-fiber (A-RoF) architecture. We verified that there is ~34% spectral efficiency gain and lower error vector magnitude (EVM) achieved using the TDMA technique.
Highlights
New technologies such as automated intelligence, autonomous vehicles, the Internet of Things (IoT), high quality Internet Protocol (IP) telephony, broadcasting televisions (TVs), and high-speed data communication, among others, are becoming a reality
The centralized/cloud radio access network (C-RAN) architecture is an emerging enabling technology introduced into 5th generation (5G) networks, and is supposed to provide reduced capital expenditure (CAPEX) and operational expenditure (OPEX), high spectral efficiency, and low energy consumption [4]
We focus on the analysis of physical uplink channels that correspond to a set of resource element carrying information originating from a higher layer, such as physical uplink control channel (PUCCH) and physical uplink shared channel (PUSCH), generated using the conventional cyclic prefix orthogonal frequency division multiplexing (CP-OFDM) technique
Summary
New technologies such as automated intelligence, autonomous vehicles, the Internet of Things (IoT), high quality Internet Protocol (IP) telephony, broadcasting televisions (TVs), and high-speed data communication, among others, are becoming a reality These technologies require faster, high capacity, quality of service (QoS) guaranteed, reliable, and continuous inter-connectivity among users and devices [1,2]. Fifth generation (5G) C-RAN is proposed to support 5G mobile technology and enhance the RAN performance by centralizing the base-band unit (BBU) pool to hundreds or thousands of remote radio heads (RRHs), which transparently forwarded the received signal waveforms to the BBU via optical fronthaul links.
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