Broadband and high linearity radio over fiber ( RoF) transmission systems are considered a promising solution for the front-haul. In future broadband cloud radio access networks (C-RAN), front-haul transmission systems play a significant role in performance and cost of C-RAN. Investigation of broadband digital predistortion for broadband radio over fiber transmission systems The system operation factors are also experimentally investigated. Finally, we demonstrated a 24-Gb/s CAP-64QAM radio-over-fiber ( ROF) system over 40-km stand single-mode- fiber (SMMF) and 1.5-m 38-GHz wireless transmission. One I/Q modulator is used for mm-wave generation and base-band signal modulation based on optical carrier suppression (OCS) and intensity modulation.
The performance of novel CAP modulation with high order QAM, for the first time, is investigated in the mm-wave fiber-wireless transmission system.
We propose and demonstrate a novel CAP- ROF system based on multi-level carrier-less amplitude and phase modulation (CAP) 64QAM with high spectrum efficiency for mm-wave fiber-wireless transmission. Zhang, Junwen Yu, Jianjun Chi, Nan Li, Fan Li, Xinying The drawn characteristics suggest that there is a significant 60% improvement in UE cell edge throughput following theĮxperimental demonstration of 24-Gb/s CAP-64QAM radio-over-fiber system over 40-GHz mm-wave fiber-wireless transmission. UE throughput in the target sector is represented using a Cumulative Distributive Function (CDF). The algorithm does not require detailed CSI feedback from UEs but it rather considers UE location (determined by the eNB) as the required parameter. A new Coordinated Multipoint (CoMP) algorithm exploiting the benefits of the SCC global network view for reduced delay in control message exchange is presented, accounting for a minimum packet delay and limited Channel State Information (CSI) in a Long Term Evolution-Advanced (LTE-A), Cloud RAN (CRAN) configuration. System level simulations of the complete network have shown significant improvement of the overall throughput and SINR for wireless users by providing effective resource allocation and coordination among interfering cells.
Therefore, certain packets can be routed between different RANs supported by the same edge node, reducing latency. The SDN based mm-Wave RAN also allows for inter edge node communication. This ensures flexible resource allocation for reduced overall latency and increased throughput.
Step enb boose software#
A Software Defined Network (SDN) Central Controller (SCC) is responsible for managing the resource across several mm-Wave Radio Access Networks (RANs) providing a global view of the several network segments.
Exploiting the inherited benefits of RoF, complete base station functionalities are centralized at the edges of the metro and aggregation network, leaving remote radio heads (RRHs) with only tunable filtering and amplification. This network will enable an effective open access system allowing providers to manage and lease the infrastructure to service providers through unbundling new business models. This paper introduces software-defined, millimeter Wave (mm-Wave) networks with Radio over Fiber ( RoF) for the delivery of gigabit connectivity required to develop fifth generation (5G) mobile. SDN based millimetre wave radio over fiber ( RoF) networkĪmate, Ahmed Milosavljevic, Milos Kourtessis, Pandelis Robinson, Matthew Senior, John M.
0 kommentar(er)
