Article
Computer Science, Hardware & Architecture
Mikail Yilan, Ozgur Gurbuz, Huseyin Ozkan
Summary: Full duplex (FD) communication has the potential to double the throughput of wireless links by suppressing self-interference (S1) signal. Implementing a comprehensive integrated linear and nonlinear digital S1 cancellation framework can significantly enhance the overall S1 suppression performance.
IEEE WIRELESS COMMUNICATIONS
(2021)
Article
Engineering, Electrical & Electronic
Long Hoang Vu, Rella Mareta, Ji-Hoon Yun
Summary: The paper presents a novel MAC protocol and station selection algorithm for addressing interstation interference in asymmetric transmission topologies in full-duplex wireless LANs. By analyzing different transmission types and decodability with SIC, the necessity of transmission-type-specific design is established.
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY
(2021)
Article
Computer Science, Information Systems
Li Chen, Zhiqin Wang, Jiamo Jiang, Yunfei Chen, F. Richard Yu
Summary: This letter studies the full-duplex self-interference cancellation and power allocation problem for a pulsed dual-functional radar-communication system. A full-duplex design is provided, and the radar signal to interference-plus-noise ratio and communication rate are derived considering imperfect full-duplex self-interference cancellation. A max-min-ratio problem is then formulated to maximize the radar signal to interference-plus-noise ratio under the communication rate constraint.
IEEE WIRELESS COMMUNICATIONS LETTERS
(2023)
Article
Computer Science, Information Systems
Yimin He, Mengyun Zhao, Wenbo Guo, Hongzhi Zhao, Shihai Shao, Youxi Tang
Summary: The performance of nonlinear self-interference (SI) cancellation was analyzed in the presence of imperfect time synchronization, where the approximation error due to the order of the nonlinear canceller was found to be smaller than that of the nonlinearity model. It was revealed that the performance of the nonlinear SI cancellation is sensitive to TE when the nonlinear order of the canceller is sufficient, where the existence of the signal-of-interest (SoI) is also considered in the simulation results.
IEEE WIRELESS COMMUNICATIONS LETTERS
(2021)
Article
Engineering, Electrical & Electronic
Soo-Min Kim, Yeon-Geun Lim, Linglong Dai, Chan-Byoung Chae
Summary: Massive MIMO and full-duplex are potential technologies for achieving the required spectral efficiency in 5G communications. One key challenge in implementing practical full-duplex massive MIMO systems is effectively mitigating self-interference (SI). Existing literature has not sufficiently compared the performance of different SI cancellation methods based on actual channel characteristics. This paper presents a performance analysis of SI cancellation methods in full-duplex massive MIMO systems, considering imperfect channel estimation. Analytical and numerical results show that spatial suppression outperforms SI subtraction in terms of ergodic rates, due to the correlation between the precoder and SI channel estimation error. The paper also discusses the performance of different methods under various system constraints.
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS
(2023)
Article
Engineering, Electrical & Electronic
Momiao Zhou, Zhizhong Ding, Kan Wang, Shun Zhang, Xianbin Wang
Summary: This paper investigates the maximum achievable sum-rate of FD-based SCNs when employing clustered IA and power control strategy. By utilizing the proposed algorithm and method for optimization, it is clear that the total achievable sum-rate is limited by the number of antennas at the users.
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY
(2021)
Article
Computer Science, Information Systems
Nanzhou Hu, Shanghui Xiao, Wensheng Pan, Qiang Xu, Shihai Shao, Youxi Tang
Summary: This paper presents the theoretical analysis and comparison of digital nonlinear self-interference cancellation using RF signal feedback and nonlinear modeling in full-duplex systems. The theoretical capabilities of the two methods are derived and validated through simulations, along with the discussion of factors affecting their performance.
SCIENCE CHINA-INFORMATION SCIENCES
(2022)
Article
Engineering, Electrical & Electronic
Bin Yu, Chen Qian, Juho Lee, Shihai Shao, Ying Shen, Wensheng Pan, Peng Lin, Zhiya Zhang, Sundo Kim, Su Hu, Kwonjong Lee, Jungsoo Jung, Sunghyun Choi, Chengjun Sun
Summary: Full duplex (FD) communication is a promising technology in 5G-advanced and 6G systems that doubles the channel capability. However, this improvement comes with self-interference (SI), which is difficult to cancel. Integrated access and backhaul (IAB) networks in mmW band minimize this challenge by using stationary transceivers and beamforming. A practical SI cancellation (SIC) technique is presented, reducing SI to the noise floor in high transmission power class mmW-based IAB networks. Field tests and system-level simulation show significant reduction in residual-interference to noise ratio (R-INR) and potential cell throughput gain compared to current duplex deployment.
IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS
(2023)
Article
Mathematics
Areeba Ayesha, MuhibUr Rahman, Amir Haider, Shabbir Majeed Chaudhry
Summary: One of the major impediments in the design and operation of a full-duplex radio transceiver is self-interference (SI). RF/analog domain cancellation is carried out to reduce SI signal, with residual SI cancellation done in the digital domain to improve the transceiver's performance. Linearization of RF impairments and performance evaluation based on various parameters are conducted to achieve significant SI cancellation and SINR improvement.
Article
Engineering, Electrical & Electronic
Amrita Mukherjee, Pratik Chakraborty, Shankar Prakriya, Ashis Kumar Mal
Summary: In this paper, the importance of intelligent adaptation in underlay cooperative non-orthogonal multiple access (CNOMA) is demonstrated. The first adaptation involves switching between the cooperative mode (CM) and the non-cooperative mode (NCM), while the second adaptation is related to transmit antenna selection. The third adaptation, presented for the first time, involves the selection of inter-dependent parameters based on channel state information (CSI), and the fourth adaptation is the use of CSI-dependent interference temperature limit (ITL) to improve performance.
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS
(2023)
Article
Engineering, Electrical & Electronic
Chun-Tao Lin
Summary: This paper investigates the joint transceiver design for full-duplex multiple-input multiple-output relay systems and proposes a novel method to optimize the source precoder, relay precoder, and receiver to minimize the symbol-vector error rate. Simulation results show that this design significantly improves the overall performance.
IEEE TRANSACTIONS ON COMMUNICATIONS
(2023)
Article
Engineering, Electrical & Electronic
Jong Woo Kwak, Min Soo Sim, In-Woong Kang, Jaedon Park, Kai-Kit Wong, Chan-Byoung Chae
Summary: One of the main obstacles in full-duplex radios is analog-to-digital converter (ADC) saturation on a receiver due to strong self-interference (SI). To solve this issue, researchers have proposed two different types of analog self-interference cancellation (SIC) methods - passive suppression and regeneration-and-subtraction of SI. The resolution of the tunable RF components is a key factor in analog SIC, and accurate estimation of the SI channel is also a major challenge due to nonlinear distortions from the power amplifier (PA). This study provides insight into the design of practical full-duplex systems by deriving a closed-form expression for the SIC performance of a multi-tap circuit and considering practical impairments.
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS
(2023)
Article
Computer Science, Information Systems
Duckdong Hwang, Janghoon Yang, Sung Sik Nam, Jingon Joung, Hyoung-Kyu Song
Summary: We investigate the beamforming for cooperative non-orthogonal multiple access (NOMA) transmission with decode-and-forward relay in full-duplex (FD) or half-duplex (HD) mode. The optimal beamforming for the second-hop of the NOMA transmission is obtained, leading to derived beamforming algorithms for the two relay modes. For FD case, a 2-D search algorithm based on semi definite relaxation (SDR) is provided, where self interference removal is important. For HD mode, no iteration is necessary and only one implementation of SDR is required. Simulation results show the performance advantage of the proposed FD mode system over HD mode in various parameter settings.
IEEE WIRELESS COMMUNICATIONS LETTERS
(2023)
Article
Computer Science, Hardware & Architecture
Muhammad Muzzammil, Saif Al-Kuwari, Niaz Ahmed, Marwa Qaraqe
Summary: The demand for high data rates is increasing as interest in Magnetic Induction (MI) communication-based underwater applications grows. However, the data rate in MI communication is limited by the use of low operational frequency. In this article, we propose the use of full-duplex (FD) MI communication to double the data rate and evaluate its performance against self-interference and orientation sensitivity.
IEEE WIRELESS COMMUNICATIONS
(2023)
Article
Engineering, Electrical & Electronic
Dror Regev, Erez Zolkov, Nimrod Ginzberg, Rani Keren, Shimi Shilo, Doron Ezri, Emanuel Cohen
Summary: This article introduces a new electronic device - the four-port quasi-circulating quadrature hybrid (QCQH), combining characteristics of electronic circulators and quadrature hybrids. Various design alternatives, including a 90 degrees transmission line and lumped transformer, are discussed for the QCQH based on a two-port N-path circuit. Experimental results show good TX isolation and transmission performance at different frequencies, along with impressive TX EVM results.
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS
(2021)