Article
Engineering, Electrical & Electronic
Meng Hua, Qingqing Wu, Derrick Wing Kwan Ng, Jun Zhao, Luxi Yang
Summary: This article investigates intelligent reflecting surface (IRS)-aided multicell wireless networks and proposes a joint optimization scheme to maximize the minimum achievable rate of cell-edge users. By transforming the non-convex max-min problem into an equivalent form using a compromise method, an efficient suboptimal iterative algorithm is designed. The optimization methods for single-user and multiuser scenarios are also discussed, showing significant performance improvement and outperformance compared to conventional designs in terms of max-min rate.
IEEE TRANSACTIONS ON COMMUNICATIONS
(2021)
Article
Computer Science, Information Systems
Junhui Zhao, Lihua Yang, Minghua Xia, Mehul Motani
Summary: This article provides a comprehensive analysis of the performance of three CoMP strategies in mmWave cellular networks, showing different advantages and disadvantages in various network densities. The suggestion of selecting the optimal CoMP scheme based on distance and radius of line-of-sight region is proposed.
IEEE INTERNET OF THINGS JOURNAL
(2021)
Article
Computer Science, Hardware & Architecture
Sandeep Gulia, Anwar Ahmad, Sandeep Singh, Mangal Deep Gupta
Summary: Interference is a major issue in cellular networks, especially for cell-edge users. In heterogeneous networks, time domain enhanced inter-cell interference coordination (TD-eICIC) and coordinated multipoint (CoMP) are two methods that can improve network performance. This article proposes a simplified and efficient multi-tier adaptive cell-coordination approach, combining the features of TD-eICIC and joint transmission CoMP (JT-CoMP), to address the challenges in dynamically varying mobile environments.
COMPUTERS & ELECTRICAL ENGINEERING
(2022)
Article
Computer Science, Information Systems
Muhammad Sohaib J. Solaija, Hanadi Salman, Abuu B. Kihero, Mehmet Izzet Saglam, Huseyin Arslan
Summary: The diversity of services in 5G and beyond networks requires a coordinated and flexible network architecture. Generalizing CoMP to a proactive and efficient resource management framework can support different user requirements while considering network constraints, enabling diverse use cases in the network.
Article
Engineering, Electrical & Electronic
Fenghe Hu, Yansha Deng, A. Hamid Aghvami
Summary: This paper proposes a parameter-sharing multi-agent reinforcement learning algorithm for coordinating multi-point decisions in large-scale networks. The results show that parameter sharing can significantly improve the algorithm's performance and convergence speed.
IEEE TRANSACTIONS ON COMMUNICATIONS
(2023)
Article
Telecommunications
Sandeep Gulia, Anwar Ahmad, Manish Kumar Singh
Summary: Coordinated multipoint (CoMP) is a set of techniques that deal with inter-cell interference effectively.
This article proposes an optimal CoMP mechanism and a backhaul overhead reduction scheme aiming to enhance performance.
Simulation results indicate that the proposed adaptive scheme outperforms conventional CoMP schemes, offering increased user throughput and sum rate.
TRANSACTIONS ON EMERGING TELECOMMUNICATIONS TECHNOLOGIES
(2022)
Article
Engineering, Electrical & Electronic
Fei Qi, Lei Liu, Weiliang Xie, Zhenqiang Sun
Summary: This paper investigates the ability to provide full-duplex (FD) relay for 5G multicast/broadcast multimedia service (MBMS) using Unmanned Aerial Vehicles (UAVs). Coordinated multiple point (CoMP) technique is used to aggregate data from multiple base stations via UAV relay in order to increase transmission rate. Raptor Q, an advanced fountain code, is used to encode messages and improve transmission reliability. The proposed solution based on UAV full-duplex relay significantly improves the transmission performance of 5G MBMS traffic under various scenarios.
IEEE TRANSACTIONS ON BROADCASTING
(2023)
Article
Engineering, Electrical & Electronic
Sidharth Sharma, Abhiram Singh, Ashwin Gumaste, Biswanath Mukherjee
Summary: 5G technology promises revolutionary bandwidth capabilities and optical solutions are proposed as the best fit to meet the network requirements. Light-trails offer dynamic bandwidth communication, sub-wavelength optical grooming, and optical layer multicasting, making them a suitable solution for 5G backhaul needs.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2021)
Article
Engineering, Electrical & Electronic
Homa Nikbakht, Michele Wigger, Shlomo Shamai (Shitz)
Summary: This paper analyzes the multiplexing gains for simultaneous transmission of delay-sensitive and delay-tolerant data over interference networks. Different coding schemes are proposed and information-theoretic converses are established for various network models. In some cases, it is possible to achieve the maximum gain for delay-sensitive data without penalizing the total gain.
IEEE TRANSACTIONS ON COMMUNICATIONS
(2021)
Article
Engineering, Electrical & Electronic
Yan Li, Minghua Xia
Summary: This paper proposes a novel ground-to-air communication scheme for unmanned aerial vehicles (UAVs) using existing terrestrial base stations (BS). It introduces a tractable coordinated multi-point (CoMP) transmission scheme based on the geometry of Poisson-Delaunay triangulation to ensure reliable connectivity for UAVs. The paper also presents an effective dynamic frequency allocation scheme to eliminate interference and improve performance. Simulation and numerical results demonstrate that the proposed scheme outperforms conventional CoMP schemes in terms of handoff and coverage probabilities, while also reducing feedback overhead.
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS
(2023)
Article
Computer Science, Information Systems
Sandeep Gulia, Anwar Ahmad
Summary: This article provides a brief overview of conventional precoding and beamforming techniques and proposes a new coordinated beamforming technique based on the SLNR metric for CoMP networks. The proposed scheme offers reduced computational cost and improved performance in noise-dominated environments compared to traditional multi-cell precoding schemes. Simulation results demonstrate that the proposed scheme provides a spectrally efficient, low-complexity solution with improved average user throughput and sum rate in CoMP-enabled networks.
Article
Engineering, Electrical & Electronic
Mohamad Khattar Awad, Ali A. M. R. Behiry, Mohammed W. Baidas
Summary: The demand for high-capacity network services with stringent quality of service requirements is growing rapidly, driving the use of heterogeneous network (HetNet) architectures. A load balancing scheme for CoMP-enabled HetNets has been proposed to optimize user latency and green energy utilization. The new scheme improves data rates for edge users, reduces latency and power consumption, and increases network sum-rate.
PHYSICAL COMMUNICATION
(2021)
Article
Computer Science, Artificial Intelligence
Tanu Goyal, Sakshi Kaushal
Summary: This paper presents a method for preserving the battery life of User Equipment (UE) during mobility, using machine learning and dynamic parameter adjustment strategies, which effectively improve the handover latency and power saving factor.
EXPERT SYSTEMS WITH APPLICATIONS
(2022)
Article
Telecommunications
Mohamed Elhattab, Mohamed-Amine Arfaoui, Chadi Assi, Ali Ghrayeb
Summary: The amalgamation of RIS technology and JT-CoMP is investigated to enhance the performance of cell-edge UE without deteriorating NOMA cell-center UE. The proposed framework is validated through closed-form expression for cell-edge UE's ergodic rate and evaluation of network spectral efficiency, showing efficacy compared to other multiple access techniques.
IEEE COMMUNICATIONS LETTERS
(2021)
Article
Remote Sensing
Baihua Shi, Yang Wang, Danqi Li, Wenlong Cai, Jinyong Lin, Shuo Zhang, Weiping Shi, Shihao Yan, Feng Shu
Summary: This paper investigates the use of a drone equipped with simultaneous transmitting and reflecting reconfigurable intelligent surfaces (STAR-RIS-UAV) for wireless communications in multi-user networks. The energy splitting and mode switching protocols are used to control the reflection and transmission coefficients, and the beamforming vectors as well as the coefficient matrices are optimized to maximize the sum rate of the system. Simulation results show that the STAR-RIS-UAV-aided CoMP system achieves a higher sum rate compared to conventional RIS systems or systems without RIS. The proposed structure is also more flexible and promotes a higher sum rate.
