A Comprehensive Survey of RAN Architectures Toward 5G Mobile Communication System

Habibi, Mohammad Asif; Nasimi, Meysam; Han, Bin; Schotten, Hans D.

doi:10.1109/access.2019.2919657

Cited by 250 publications

(221 citation statements)

References 256 publications

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“…The group's N/2 low frequency subcarriers occupy the LSB of the sub-band, and the remaining N/2 high frequency subcarriers occupy the USB of the same sub-band. The received subcarrier matrix of the i-th sub-wavelength can then be described as: (6) In addition, it should also be noted that the subcarrier matrix , is the sum of the received I-phase sub-band subcarriers and Q-phase sub-band subcarriers. Under an assumption of a linear transmission system and considering Eq.…”

Section: Operating Principle and Theoretical Modelmentioning

confidence: 99%

“…Practical, cost effective high-speed 5G C-RANs can be based on intensity modulation and direct detection in a passive optical network (IMDD PON) [4], [5]. However, some modifications to existing IMDD PONs are required to deliver high data rate, low latency and ubiquitous access [6]- [8], and address surging dynamic mobile traffic. Furthermore, it is desirable to equip the PONs with software-defined networking (SDN) and network function virtualization (NFV) across all the network layers for more efficient network operation and resource utilization.…”

Section: Introductionmentioning

confidence: 99%

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Hybrid OFDM-Digital Filter Multiple Access PONs Utilizing Spectrally Overlapped Digital Orthogonal Filtering

et al. 2020

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Known hybrid orthogonal frequency division multiplexing-digital filter multiple access (OFDM-DFMA) PONs show promise of seamless and cost-effective convergence of optical and mobile networks for 5G and beyond. This paper reports, for the first time, a new hybrid OFDM-DFMA PON based on intensity modulation and direct detection (IMDD), obtained by modifying digital signal processing (DSP) algorithms embedded in both the OLT and ONUs. The proposed PON allows two spectrally overlapped sub-bands to occupy each individual sub-wavelength spectral region to independently transmit upstream ONU information. A model of the proposed PON is developed and its upstream transmission performances are numerically explored for different application scenarios. Compared with the previously published PON, the proposed PON doubles the number of supported ONUs and provides >1.7-fold aggregate upstream signal transmission capacity increases with <1.5dB upstream power budget degradations. Alternately, for the same ONU count, >2.2-fold aggregate upstream signal transmission capacity increases and >0.7dB upstream power budget improvements are achievable. The performance improvements vary by <18% for a transmission distance range as large as 50km. In addition, the proposed PON is tolerant to finite digital filter tap length-induced channel interferences.

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Section: Operating Principle and Theoretical Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Hybrid OFDM-Digital Filter Multiple Access PONs Utilizing Spectrally Overlapped Digital Orthogonal Filtering

et al. 2020

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“…Pembangunan BTS (Base Transceiver Station) tidak terlepas dari proses perencanaan dan anggaran biaya perusahaan yang harus dikeluarkan. Anggaran biaya pembangunan BTS merupakan biaya terbesar dari perusahaan telekomunikasi, sedangkan di sisi lain biaya operasional juga tidak sedikit, sehingga para pelaku usaha bisnis telekomunikasi dituntut untuk berpikir keras dalam proses penentuan anggaran perusahaan atau Capital Expenditure (CAPEX) dan anggaran operasional atau Operational Expenditure (OPEX) [1] [2].…”

Section: Pendahuluanunclassified

Analisa Efektifitas Ran Sharing Pada Perusahaan Telekomunikasi (Studi Kasus RAN Sharing XL-Indosat)

Hidayat

2020

InComTech

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Kajian mengenai network sharing dan RAN (Radio Access Networks) Sharing sudah dilakukan oleh beberapa pakar telekomunikasi ataupun organisasi yang fokus terhadap perkembangan teknologi industri telekomunikasi. Penerapan teknik RAN Sharing oleh operator telekomunikasi perlu dilakukan dengan adanya aturan hukum atau regulasi yang mengatur tentang proses dan pelaksanaan kerjasama antar operator sehingga akan berjalan secara teratur. Beberapa riset telah mengungkapkan bahwa sebuah operator akan melakukan efisiensi sekitar 40 % – 60 % pada opex dan capex jika menerapkan RAN Sharing. Di Indonesia sudah ada 2 operator yang sudah menerapkan RAN Sharing yaitu operator XL dan Indosat. Kerjasama ini sudah dijalin sejak tahun 2012 dan hal ini perlu dikaji kembali efektifitasnya terhadap manajemen stategis perusahaan telekomunikasi.

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“…T HE cloud radio access network (C-RAN) is considered as a promising fifth generation (5G) network architecture which is anticipated to address the increasing demand for bandwidth-hungry applications, decreased latency (in the order of a few ms), improved data rate (up to 1 Gbps) and consequently the rapid growth of wireless traffic which is expected to reach 110 ExaBytes/month by the end of 2023 [1], [2].…”

Section: Introductionmentioning

confidence: 99%

Performance Evaluation in Single or Multi-Cluster C-RAN Supporting Quasi-Random Traffic

Chousainov

Moscholios

Kaloxylos

et al. 2020

J. commun. softw. syst. (Online)

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In this paper, a cloud radio access network (C-RAN) is considered where the remote radio heads (RRHs) are separated from the baseband units (BBUs). The RRHs in the C-RAN are grouped in different clusters according to their capacity while the BBUs form a centralized pool of computational resource units. Each RRH services a finite number of mobile users, i.e., the call arrival process is the quasi-random process. A new call of a single service-class requires a radio and a computational resource unit in order to be accepted in the C-RAN for a generally distributed service time. If these resource units are unavailable, then the call is blocked and lost. To analyze the multi-cluster C-RAN, we model it as a single-rate loss system, show that a product form solution exists for the steady state probabilities and propose a convolution algorithm for the accurate determination of congestion probabilities. The accuracy of this algorithm is verified via simulation. The proposed model generalizes our recent model where the RRHs in the C-RAN are grouped in a single cluster and each RRH accommodates quasi-random traffic.

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A Comprehensive Survey of RAN Architectures Toward 5G Mobile Communication System

Cited by 250 publications

References 256 publications

Hybrid OFDM-Digital Filter Multiple Access PONs Utilizing Spectrally Overlapped Digital Orthogonal Filtering

Hybrid OFDM-Digital Filter Multiple Access PONs Utilizing Spectrally Overlapped Digital Orthogonal Filtering

Analisa Efektifitas Ran Sharing Pada Perusahaan Telekomunikasi (Studi Kasus RAN Sharing XL-Indosat)

Performance Evaluation in Single or Multi-Cluster C-RAN Supporting Quasi-Random Traffic

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