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Telecommunications
Xinlu Tan, Ke Xiong, Bo Gao, Pingyi Fan, Khaled Ben Letaief
Summary: This paper proposes an energy-efficient cooperative base station switching-off method in multi-input single-output (MISO) cellular networks. The method combines roaming-cost-based cooperation and cooperative beamforming among multiple mobile network operators (MNOs). An optimization problem is formulated to maximize the system energy efficiency (EE) by considering various factors, and a solution method, called EBBSOM, is proposed to solve the non-convex problem.
IEEE TRANSACTIONS ON GREEN COMMUNICATIONS AND NETWORKING
(2023)
Article
Engineering, Electrical & Electronic
Xuekang Liu, Steven Gao, Wei Hu, Lehu Wen, Qi Luo, Benito Sanz-Izquierdo, Xiaodong Chen, Long Qian, Josaphat Tetuko Sri Sumantyo, Xue-Xia Yang
Summary: This paper presents a dual-polarized filtering antenna for base-station applications, which has steep cut-off characteristics and compact size. By utilizing split rings, slotted T-shaped branches, a single-stub tuner, and a parasitic loop, the antenna can achieve multiple radiation nulls and enhance the out-of-band suppression. The impedance bandwidth of the antenna can also be expanded with newly introduced resonant modes.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2022)
Article
Telecommunications
Wiroonsak Santipach, Kaemmatat Jiravanstit
Summary: This study examines the Device-to-Device (D2D) communication in cellular networks. A mode selection scheme is proposed to minimize the transmission power of the D2D transmitter while controlling interference to other cellular users, based on power bounds and a few statistics. The scheme performs close to optimal when the number of Base Station (BS) antennas is large and the fading terms have small deviations.
DIGITAL COMMUNICATIONS AND NETWORKS
(2022)
Article
Engineering, Electrical & Electronic
Sheng Jie Yang, Wen Duan, Yi Yang Liu, Hua Ye, Hua Yang, Xiu Yin Zhang
Summary: This communication introduces a compact dual-band dual-polarized filtering antenna designed for base-station applications. The antenna consists of high-band (HB) and low-band (LB) elements with filtering responses. The antenna achieves a compact size by embedding the HB element into the LB element. The fabricated prototype demonstrates good performance in LTE band 41 as well as LTE bands 42 and 43, with compact size and high isolation.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2022)
Article
Computer Science, Information Systems
Wanying Guo, Jahwan Koo, Isma Farah Siddiqui, Nawab Muhammad Faseeh Qureshi, Dong Ryeol Shin
Summary: This article studies the issue of increased energy consumption due to the increase in base station density in 5G HetNets and proposes an optimized micro base station deployment strategy to improve energy efficiency. Simulation experiments have demonstrated the effectiveness of the proposed strategy in improving energy efficiency.
JOURNAL OF KING SAUD UNIVERSITY-COMPUTER AND INFORMATION SCIENCES
(2022)
Article
Computer Science, Information Systems
Yi Yang, Zhixin Liu, Heng Zhu, Xinping Guan, Kit Yan Chan
Summary: This paper proposes a switch algorithm to reduce energy consumption in dense networks. By adjusting the switch status of base stations based on traffic load, the energy consumption becomes more flexible and effective.
Article
Engineering, Electrical & Electronic
Xuekang Liu, Steven Gao, Benito Sanz-Izquierdo, Haiwei Zhang, Lehu Wen, Wei Hu, Qi Luo, Josaphat Tetuko Sri Sumantyo, Xue-Xia Yang
Summary: This article proposes an interleaved shared-aperture dual-band dual-polarized base station array antenna. By introducing various structures and combinations, low-scattering LB elements with band rejection capabilities and high-impedance bandwidth HB elements with high out-of-band rejection levels are realized. By combining these two elements, an antenna design with a small frequency ratio and high cross-band isolation is achieved.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2022)
Article
Engineering, Electrical & Electronic
Liang Hua Ye, Da Gui Ye, Zhuozhu Chen, Jian Feng Li
Summary: This paper introduces an ultrawideband dualpolarized antenna composed of a main radiator, parasitic elements, and a ground plane. The main radiator consists of cross-arranged dual dipoles fed by coplanar-strip lines to achieve +/- 45 degrees dual-polarization within a wide frequency band. Parasitic elements, including a circular patch and four pairs of dipole strips, are used to improve radiation performance in high frequencies. The proposed antenna covers the frequency range from 1.7 to 5.1 GHz for both polarizations, with a gain of 8.2 +/- 0.7 dBi and a half-power beamwidth of 65 degrees +/- 5 degrees. The measured results agree well with simulated ones, indicating its potential for future base-station communication systems.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2023)
Article
Engineering, Electrical & Electronic
Yixin Li, Qing-Xin Chu
Summary: This article proposes a novel configuration for dual-band dual-polarized base station antenna array design, achieving clear and independent radiating environments using different types of reflectors. The mutual effects between the low-band and high-band antennas help to maintain good impedance matching and stable radiation patterns.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2021)
Article
Engineering, Electrical & Electronic
Wanchen Yang, Yongzheng Li, Quan Xue, Shaowei Liao, Wenquan Che
Summary: A novel method for bandwidth enhancement using multiple parasitic structures in a miniaturized antenna is proposed in this paper. A wideband dual-polarized dipole antenna for LTE/CDMA/GSM base-station application is designed based on the proposed method. The antenna exhibits a large operation bandwidth, stable radiation patterns, and compact size.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2022)
Article
Computer Science, Hardware & Architecture
Greta Vallero, Margot Deruyck, Michela Meo, Wout Joseph
Summary: This paper investigates the impact of MEC technology on RAN performance in terms of caching, proposes new user association policies to reduce network energy consumption, and the simulation results show that this technology and methodology can significantly reduce user experienced delay and energy consumption.
Article
Engineering, Electrical & Electronic
Yue Qin, Ronglin Li, Quan Xue, Xiuyin Zhang, Yuehui Cui
Summary: This paper proposes a new approach to develop aperture-shared dual-hand antennas using partially reflecting surfaces (PRSs). The shielding effect caused by aperture sharing is alleviated by inserting a low-pass PRS between the low-band antenna (LBA) and high-band antenna (HBA). A second PRS is introduced to enhance the bandwidth for the HBA. An aperture-shared dual-band antenna subarray is developed for base-station applications using PRSs.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2022)
Article
Computer Science, Information Systems
Lin Guo, Shen-Yun Wang, Guo-Wen Ding, Wen Geyi
Summary: In this paper, a beam shaping scheme is proposed for the optimal design of base station antenna array. The antenna array consists of four linearly arranged dual-band dual-polarized antenna elements, designed to cover the LTE frequency band (2.3-2.69 GHz) and 5G frequency band (3.3-3.6 GHz). The proposed scheme achieves shaped beams with maximum gain, suppressed sidelobe level below -16 dB, front-to-back ratio above 18 dB, and filled-up null point exceeding -23 dB through two steps using unconstrained MMPET and constrained MMPTE methods, considering all realistic factors of the antenna array.
Article
Engineering, Electrical & Electronic
Reza Fatemi, Parham P. Khial, Aroutin Khachaturian, Ali Hajimiri
Summary: This paper studies the fundamental limits and trade-offs in nano-photonic antenna design, as well as how to improve antenna structures for enhanced performance. By deviating from conventional assumptions, high-performance multi-mode antenna structures with characteristics beyond traditional perceived limits are demonstrated.
IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS
(2021)
Article
Engineering, Electrical & Electronic
Chao Feng Ding, Zhen-Yuan Zhang, Yi Zeng, Ming Yu
Summary: This paper proposes a dual-band dual-polarized antenna with very small frequency spacing for base-station applications. The antenna consists of a lower band (LB) and an upper band (UP) dual-polarized filtering dipole elements. The design of each antenna, guided by the coupling matrix model, yields third-order filter responses with two radiation nulls at the same stopband. The proposed antenna is suitable for challenging wireless communication applications, as validated by the measured results.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2023)
