Article
Computer Science, Information Systems
Zhiyuan Mai, Yueyun Chen, Yating Xie, Guang Chen
Summary: This paper proposes a system energy efficiency optimization model for C-RAN downlink transmission, which jointly considers multiple resource allocation. The proposed model formulates the end-to-end delay using a user data queue model to achieve strict stability. By defining an improved Drift-Plus-Penalty function, the original problem is transformed into sub-problems, and the optimal resource allocation is obtained using a linear equation and a convolution neural network.
Article
Engineering, Electrical & Electronic
Mohsen Banar, Abbas Mohammadi, Mohammad Kazemi
Summary: This paper studies a millimeter-wave full-duplex cloud radio access network for 5G and beyond systems, where the central unit is equipped with multiple antennas and the remote radio heads operate in full-duplex mode. The relay selection method based on signal to interference plus noise ratio is analyzed, taking into account the characteristics of millimeter-wave communications. The study shows that the RRH selection method significantly improves the performance of the system.
PHYSICAL COMMUNICATION
(2022)
Article
Computer Science, Information Systems
Zixiao Zhao, Qinghe Du, Dawei Wang, Xiao Tang, Houbing Song
Summary: This article investigates potential techniques to improve service-aware radio access in the integrated 6G network. It discusses the evolution of cloud-based RAN architectures and proposes an intelligent RAN architecture to address the service-awareness for heterogeneous and distributed requests. It also analyzes the challenges and potential solutions for the heterogeneous resource configuration and explores promising research topics on service-aware radio access for 6G networks.
Article
Computer Science, Hardware & Architecture
Chia-Cheng Hu, Wen -Wu Liu, Jeng-Shyang Pan
Summary: This paper addresses the problem of content distribution in C-RANs with the aim of minimizing the total traffic cost of content transmission. The problem is formulated as a mixed-integer linear programming and an algorithm with a bounded approximation ratio is proposed. Simulation results demonstrate the superiority of the proposed algorithm compared to recent heuristic algorithms and show that the difference between the algorithm's solution and the optimal solution is very small. The proposed algorithm for content exchange between neighbor RRHs is also shown to be feasible in C-RANs.
Article
Computer Science, Information Systems
Mohammed Elfiky, Zdenek Becvar, Pavel Mach
Summary: In this article, a flexible and dynamic HARQ resource pre-allocation method based on the actual retransmission needs of individual user equipments is proposed. Two algorithms are used to manage the pre-allocation. Simulation results show that the proposed method achieves goodput close to the theoretical upper-bound and outperforms existing approaches by up to 39%.
IEEE SYSTEMS JOURNAL
(2023)
Article
Computer Science, Information Systems
Iskanter-Alexandros Chousainov, Ioannis D. Moscholios, Panagiotis Sarigiannidis, Michael D. Logothetis
Summary: This paper explores a multiservice loss model in a cloud radio access network, modeling both single-cluster and multi-cluster scenarios. An efficient algorithm is used to accurately calculate call blocking probabilities.
Article
Engineering, Electrical & Electronic
Rupesh Rai, Huiling Zhu, Jiangzhou Wang
Summary: This paper conducts a performance analysis of non-orthogonal multiple access (NOMA) in cloud radio access networks (C-RAN). The joint optimization problem of user association, muting, and power-bandwidth allocation is formulated for NOMA-enabled C-RANs. The paper proposes centralized and heuristic algorithms to obtain feasible solutions for the RRH muting problem and achieves significant fairness improvement compared to orthogonal multiple access (OMA)-based C-RANs.
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS
(2022)
Article
Computer Science, Hardware & Architecture
Fatma Marzouk, Joao Paulo Barraca, Ayman Radwan
Summary: This work focuses on minimizing the power consumption of cloud virtualization components by addressing the challenge of designing allocation schemes that cater for both radio and computational resources. Unlike previous efforts, this study considers the realistic behavior of radio resource heads and proposes a two-level resource allocation framework. Extensive simulation-based performance evaluation confirms the high performance of the proposed solution.
IEEE CANADIAN JOURNAL OF ELECTRICAL AND COMPUTER ENGINEERING
(2022)
Article
Computer Science, Information Systems
Muhammad Ahsan, Ashfaq Ahmed, Arafat Al-Dweik, Arsalan Ahmad
Summary: This article proposes an optimal BBU placement using a mixed functional split scheme to address the challenge of fronthaul latency and reduce network cost.
IEEE SYSTEMS JOURNAL
(2023)
Article
Computer Science, Information Systems
Fehmi Emre Kadan, Ali Ozgur Yilmaz
Summary: In this study, the problem of multi-cell cooperation in Cloud Radio Access Network was investigated with the aim of minimizing total power spent by designing beamformers. A novel method was proposed to transform the problem into a smooth constraint-free form and find a solution using the gradient descent approach. Simulation results showed that the performance of the proposed method is close to the optimal one and outperforms other methods analyzed.
Article
Computer Science, Information Systems
Song Yang, Nan He, Fan Li, Stojan Trajanovski, Xu Chen, Yu Wang, Xiaoming Fu
Summary: The combination of C-RAN and MEC can improve spectrum utilization and delay-guaranteed services, shortening service delays by co-locating the BBU pool with edge cloud at the BBU node. Research has focused on user task allocation, path planning, and survivability concerns, proving the NP-hardness of these issues.
IEEE INTERNET OF THINGS JOURNAL
(2021)
Article
Engineering, Electrical & Electronic
Xiangnan Liu, Haijun Zhang, Keping Long, Arumugam Nallanathan, Victor C. M. Leung
Summary: This paper investigates the challenges of energy efficiency and cross-tier interference in heterogeneous Fog-RAN and proposes an algorithm and strategy for user association, resource allocation, and caching deployment. Simulation results demonstrate the effectiveness and convergence of the proposed method.
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY
(2022)
Article
Engineering, Electrical & Electronic
Deokhwan Han, Jeonghun Park, Seok-Hwan Park, Namyoon Lee
Summary: This paper presents a sparse joint transmission (sparse-JT) method for cloud radio access networks (C-RANs), which achieves cooperation gain with reduced signaling overhead. Through system-level simulations, it is demonstrated that sparse-JT provides significant improvements in spectral efficiencies compared to existing methods.
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS
(2022)
Article
Computer Science, Hardware & Architecture
Shunmugapriya Ramanathan, Abhishek Bhattacharyya, Koteswararao Kondepu, Andrea Fumagalli
Summary: This article presents an experiment that achieves live migration of a containerized 5G Central Unit module using modified open-source migration software. By comparing different migration techniques, it is found that the hybrid migration technique can reduce end-user service recovery time by 36% compared to the traditional cold migration technique.
JOURNAL OF NETWORK AND COMPUTER APPLICATIONS
(2024)
Article
Computer Science, Hardware & Architecture
Longbiao Chen, Zhihan Jiang, Dingqi Yang, Cheng Wang, Thi-Mai-Trang Nguyen
Summary: The emergence of fog-computing-based RAN architecture in 5G networks addresses the significant demands for mobile operators to increase data processing capacity and ensure user handover quality. By optimizing RRH clustering and BBU allocation, Fog-RAN can effectively handle data traffic and user mobility dynamics, leading to improved efficiency and reduced overhead in comparison to traditional RAN architectures.
JOURNAL OF NETWORK AND COMPUTER APPLICATIONS
(2021)
Article
Engineering, Electrical & Electronic
Mukesh Kumar Maheshwari, Mamta Agiwal, Navrati Saxena, Abhishek Roy
IETE TECHNICAL REVIEW
(2019)
Article
Computer Science, Information Systems
Mukesh Kumar Maheshwari, Abhishek Roy, Navrati Saxena
IEEE TRANSACTIONS ON MOBILE COMPUTING
(2019)
Article
Engineering, Electrical & Electronic
Mamta Agiwal, Navrati Saxena, Abhishek Roy
IETE TECHNICAL REVIEW
(2019)
Article
Computer Science, Information Systems
Mukesh Kumar Maheshwari, Mamta Agiwal, Navrati Saxena, Abhishek Roy
IEEE TRANSACTIONS ON MOBILE COMPUTING
(2019)
Article
Engineering, Electrical & Electronic
Mudasar Latif Memon, Navrati Saxena, Abhishek Roy, Sukhdeep Singh, Dong Ryeol Shin
IETE TECHNICAL REVIEW
(2020)
Article
Computer Science, Information Systems
Mudasar Latif Memon, Mukesh Kumar Maheshwari, Navrati Saxena, Abhishek Roy, Dong Ryeol Shin
Article
Engineering, Electrical & Electronic
Navrati Saxena, Farooque Hassan Kumbhar, Abhishek Roy
IEEE COMMUNICATIONS MAGAZINE
(2020)
Article
Computer Science, Information Systems
Shama Noreen, Navrati Saxena, Abhishek Ro
Article
Computer Science, Hardware & Architecture
Eshita Rastogi, Navrati Saxena, Abhishek Roy, Dong Ryeol Shin
Article
Computer Science, Information Systems
Farooque Hassan Kumbhar, Navrati Saxena, Abhishek Roy
PEER-TO-PEER NETWORKING AND APPLICATIONS
(2020)
Article
Engineering, Electrical & Electronic
Jisi Chandroth, Navrati Saxena, Abhishek Roy, Eshita Rastogi
Summary: Internet of Things (IoT) connects physical objects to the internet for information exchange. 5G networks are expected to provide low latency, high reliability, and efficient data transmissions for large number of connected IoT devices. Applying Discontinuous Reception (DRX) mechanism to IoT gateways reduces power consumption and improves energy efficiency by almost 30% compared to Relay Energy Efficiency (REE) based scheme.
IETE TECHNICAL REVIEW
(2022)
Article
Telecommunications
Eshita Rastogi, Mukesh Kumar Maheshwari, Abhishek Roy, Navrati Saxena, Dong Ryeol Shin
Summary: In this article, a hybrid long term evolution vehicle-to-everything architecture is explored, utilizing both vehicle-to-infrastructure and vehicle-to-vehicle communication to provide high throughput for infotainment services while maintaining high reliability and low transmission delay for safety messages.
TRANSACTIONS ON EMERGING TELECOMMUNICATIONS TECHNOLOGIES
(2021)
Article
Computer Science, Information Systems
Eshita Rastogi, Mukesh Kumar Maheshwari, Abhishek Roy, Navrati Saxena, Dong Ryeol Shin
Summary: This letter introduces machine learning-based discontinuous reception mechanisms, and the simulation results suggest that the performance of LSTM is superior to Support Vector Machine (SVM) and Naive Bayes (NB) classifiers, achieving up to 3% improvement in Power-Saving Factor (PSF) and 50% reduction of average delay compared to conventional 5G-DRX.
IEEE WIRELESS COMMUNICATIONS LETTERS
(2022)
Article
Engineering, Electrical & Electronic
Navrati Saxena, Abhishek Roy, Mukesh Kumar Maheswari, Eshita Rastogi, Dong Ryeol Shin
Summary: The article discusses two different aspects of discontinuous reception (DRX) for energy and resource savings in 5G NR unlicensed networks, focusing on beam searching and beam awareness as solutions based on directional beams.
IEEE COMMUNICATIONS MAGAZINE
(2021)
Article
Computer Science, Information Systems
Madhan Raj Kanagarathinam, Sukhdeep Singh, Irlanki Sandeep, Hanseok Kim, Mukesh Kumar Maheshwari, Jaehyun Hwang, Abhishek Roy, Navrati Saxena
