Article
Engineering, Electrical & Electronic
Dongsheng Zheng, Yuli Yang, Lai Wei, Bingli Jiao
Summary: In this paper, a decode-and-forward short-packet relaying model is developed to minimize the average Age of Information (AoI) for IoT monitoring networks. The proposed algorithms for optimizing the AoI in both half-duplex and full-duplex relaying networks are validated through illustrative numerical results, providing useful references for network design.
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS
(2021)
Article
Engineering, Electrical & Electronic
L. Wang, W. Tang, Y. Fan, T. Yan, L. Jiang
Summary: This letter investigates the application of PDMA in satellite-terrestrial networks and compares the outage probability, ergodic capacity, and system throughput between PDMA and conventional OMA technologies. The results demonstrate that PDMA-based hybrid satellite-terrestrial relay networks outperform other systems in terms of OP and ergodic capacity.
PHYSICAL COMMUNICATION
(2022)
Article
Engineering, Electrical & Electronic
Linhang Jiao, Ran Zhang, Mingqian Liu, Qiaozhi Hua, Nan Zhao, Arumugam Nallanathan, Xianbin Wang
Summary: The proposed UAV relaying scheme assists covert communication between two terrestrial nodes by utilizing Gaussian signalling to confuse eavesdroppers' detection. The scheme optimizes transmit power and blocklength to maximize effective throughput under different distances between the transmitter and eavesdropper.
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY
(2022)
Article
Computer Science, Information Systems
Latif Jan, Mohammad Haseeb Zafar, Abdul Waheed, Mahdi Zareei, Faisal Alanazi
Summary: Spatial diversity in wireless communication systems is crucial and MIMO technology holds a key position in improving throughput and capacity. This paper presents an approximate closed-form expression for the ergodic capacity of MIMO-OFDM in multi-hop relay networks and conducts Monte-Carlo simulations to verify its performance, providing valuable insights for capacity evaluation research.
CMC-COMPUTERS MATERIALS & CONTINUA
(2021)
Article
Energy & Fuels
Hui Sun, Fengxia Han, Shengjie Zhao, Hao Deng
Summary: In this paper, an energy harvesting relaying system based on the power splitting method is proposed, which powers the relay node through energy harvesting. It can reduce the outage probability and improve the system capacity.
Article
Engineering, Electrical & Electronic
Doaa Salim, Monjed H. Samuh, Anas M. Salhab
Summary: This paper investigates the scenario of RIS source DF relaying network with interference, providing closed-form approximations for outage probability and analyzing the behavior at high SNR values. The findings show that the number of reflecting elements N has a small impact on coding gain, while the number of relays K has a more significant influence on diversity order.
PHYSICAL COMMUNICATION
(2021)
Article
Telecommunications
Ruiqian Ma, Weiwei Yang, Hui Shi, Xingbo Lu, Jue Liu
Summary: In this paper, the feasibility and performance of covert communication with a spectrum sharing relay in the finite blocklength regime are investigated. The relay opportunistically forwards the source's messages to the primary receiver or conveys covert messages to its own receiver using the sharing spectrum, while the warden tries to detect the transmission. Lower bounds on the covertness constraint and analytical expressions for the primary average effective covert throughput (AECT) and sum AECT are derived, considering the overall decoding error performance. Two optimization problems are formulated to maximize the primary and sum AECT by optimizing the blocklength and transmit power at the source and relay. It is found that there exists an optimal blocklength to maximize the primary and sum AECT, and the optimal transmit power increases as the channel quality deteriorates to maximize the primary AECT.
CHINA COMMUNICATIONS
(2023)
Article
Physics, Multidisciplinary
Zhifei Zhang, Peng Dong, Xinlu Tan, Yaping Li, Ke Xiong
Summary: This paper investigates the outage performance of SWIPT-enabled relay networks with the decode-and-forward relaying protocol, considering the effect of the energy triggering threshold. The closed-form expressions of the system outage probability and throughput are derived and verified using Monte Carlo Simulation. The effects of some system parameters on the system performances are discussed.
Article
Computer Science, Information Systems
Liqing Shan, Yuntao Hu, Fenghui Zhang, Ming Chen
Summary: This letter focuses on resource allocation for uplink multicarrier narrowband communication in the finite blocklength regime, which is a prominent feature of Internet-of-Things (IoT) characterized by short packet communication suffering from transmission rate degradation and decoding errors. An optimization problem is formulated to maximize effective throughput considering data rate and transmission reliability, along with exploration of resource allocation based on partial channel state information (CSI) due to the difficulty of obtaining perfect CSI. Simulation results demonstrate the effectiveness and robustness of the proposed algorithm.
IEEE WIRELESS COMMUNICATIONS LETTERS
(2023)
Article
Computer Science, Information Systems
Fahad Qasmi, Mohammad Shehab, Hirley Alves, Matti Latva-Aho
Summary: This article evaluates the effective energy efficiency and proposes delay-outage aware resource allocation strategies for energy-limited IoT devices under the finite blocklength regime. By optimizing transmission parameters, such as power and rate, the EEE can be maximized to ensure QoS constraints are met in the presence of constant and random data arrivals. The joint power allocation and rate allocation strategy is identified as optimal for maximizing EEE performance.
IEEE INTERNET OF THINGS JOURNAL
(2022)
Article
Telecommunications
Baoquan Yu, Dan Wu, Yueming Cai, Yan Wu, Zhongwu Xiang
Summary: This paper investigates resource allocation for cellular-based mMTC in the finite block-length regime, proposing a joint power allocation and spectrum sharing scheme to minimize average delay. Simulation results confirm the effectiveness of the proposed scheme in reducing average delay.
CHINA COMMUNICATIONS
(2021)
Article
Chemistry, Analytical
Phu Tran Tin, Tan N. Nguyen, Dinh-Hieu Tran, Miroslav Voznak, Van-Duc Phan, Symeon Chatzinotas
Summary: This paper investigates the outage performance of a SWIPT-based DF full-duplex relaying network in wireless ad hoc networks, proposing four protocols and deriving exact closed-form expressions for all schemes. Monte Carlo simulations are conducted to validate the theoretical analysis and the effectiveness of the proposed schemes.
Article
Computer Science, Information Systems
Zhiwei Bao, Yulin Hu, Peng Sun, Azzedine Boukerche, Anke Schmeink
Summary: This paper focuses on an update-and-decide IoT-based wireless network that utilizes finite blocklength (FBL) codes and truncated hybrid automatic repeat request (HARQ) schemes. It characterizes the timeliness of status updates in such a network and proposes an approach to determine the average age upon decisions (AuD). A joint optimization problem for blocklength and arrival rate is considered to minimize the average AuD. Convexity properties of the decoding error probability and average AuD are proven, and an efficient alternating algorithm is developed to obtain a solution. Simulations are conducted to evaluate the network's performance and provide design guidelines.
COMPUTER COMMUNICATIONS
(2023)
Article
Telecommunications
Xiao Lu, Ping Wang, Guangxia Li, Dusit Niyato, Zhengwei Li
Summary: This study considers the mode selection problem in the finite blocklength non-orthogonal transmission scenario and proposes a lightweight mode selection method that eliminates the need for instantaneous channel state information estimation by exploiting statistical system information. By deriving the analytical expressions of block error rates and utilizing a bandit learning-based approach to assess the upper confidence bound of the reward gap, the proposed method demonstrates its effectiveness over conventional approaches without requiring knowledge of instantaneous CSI.
IEEE TRANSACTIONS ON COGNITIVE COMMUNICATIONS AND NETWORKING
(2022)
Article
Engineering, Electrical & Electronic
Lina Zheng, Chao Zhai
Summary: This paper discusses a wireless powered cognitive relaying system, where a secondary relay can harvest wireless energy and assist in transmitting secondary data. Analysis shows that the outage probabilities of both primary and secondary systems contribute to boosting the energy collected by the relay, and various parameters impact the system's outage performance.
EURASIP JOURNAL ON WIRELESS COMMUNICATIONS AND NETWORKING
(2021)
Article
Engineering, Electrical & Electronic
Yichuan Lin, Chao Shen, Yulin Hu, Bo Ai, Zhangdui Zhong
Summary: This article proposes a low-complexity joint design framework based on finite blocklength code (FBC) for ultra-reliable low-latency communication (URLLC). By deriving an approximate bound of packet error probability (PEP) and utilizing its monotonicity, closed-form solutions for power and blocklength allocation are provided. The results show that capacity-based design underestimates the required resources.
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS
(2022)
Article
Telecommunications
Guohua Zhang, Mengdi Ni, Yulin Hu, Yang Yang
Summary: A novel relationship between disjoint difference sets (DDS) and QC-LDPC codes without cycles of length up to six has been established. Using DDS with two sets, a class of column-weight-four QC-LDPC codes with girth at least eight has been constructed. Compared to existing methods, the new DDS-based method offers QC-LDPC codes with desirable decoding performance and flexible circulant sizes, while also providing a large number of non-equivalent candidate codes. Additionally, using DDS with only one set, a class of column-weight-three QC-LDPC codes with short lengths and girth at least eight has been constructed.
IEEE COMMUNICATIONS LETTERS
(2023)
Article
Engineering, Electrical & Electronic
Xiaopeng Yuan, Yao Zhu, Yulin Hu, Hao Jiang, Chao Shen, Anke Schmeink
Summary: This work investigates a hybrid strategy for a downlink multi-user network to efficiently cope with the multiple access demand. By combining broadcasting with time-division multiple access, the proposed strategy clusters users into different groups and serves them in a TDMA manner, while users within each group are served via a broadcasting signal. The system performance is optimized by formulating a problem that considers the fairness of transmission reliability among users. Optimal solutions for user grouping and blocklength allocation are obtained through closed-form allocation solution and iterative operations. Simulation results validate the proposed solutions and demonstrate the reliability advantage of the hybrid strategy.
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS
(2022)
Article
Engineering, Electrical & Electronic
Yao Zhu, Yulin Hu, Xiaopeng Yuan, M. Cenk Gursoy, H. Vincent Poor, Anke Schmeink
Summary: To support mission-critical applications with ultra-reliable and low-latency services, transmissions are carried out using short blocklength codes in the finite blocklength (FBL) regime. This paper proves the joint convexity of FBL error probability with respect to blocklength and transmit power, enabling the design of systems with globally optimal performance levels. The proposed approach is validated through simulations, demonstrating its advantage compared to other commonly-applied approaches.
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS
(2023)
Article
Engineering, Electrical & Electronic
Yao Zhu, Xiaopeng Yuan, Yulin Hu, Tong Wang, M. Cenk Gursoy, Anke Schmeink
Summary: This paper investigates the performance of a hybrid multi-access scheme that combines the advantages of non-orthogonal multiple access (NOMA) and time-division multiple access (TDMA) schemes in the finite blocklength (FBL) regime. Two latency-sensitive application scenarios are studied, one with queuing behavior influencing the performance and the other without. Optimal framework is provided by jointly allocating the blocklength and transmit power of each user for reliability optimization and effective capacity maximization. Simulation results validate the advantages of the proposed approaches compared to existing schemes.
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS
(2023)
Article
Remote Sensing
Xinran Wang, Peng Wu, Yulin Hu, Xuan Cai, Qinghua Song, Hu Chen
Summary: In this work, a multi-UAV-assisted wireless power transfer (WPT) network is proposed to prolong the lifespan of multiple ground devices (GDs) by deploying multiple UAVs to provide WPT services. To improve the WPT efficiency while considering fairness, the joint trajectories and transmit power design are investigated. The problem is formulated using a more accurate multi-source nonlinear energy harvesting (EH) model, and a convex approximation method is introduced to tackle the non-convex nature of the problem. Numerical results demonstrate the convergence of the algorithm and validate the performance advantages of the proposed multi-UAV WPT scheme with a nonlinear EH model compared to benchmarks.
Article
Computer Science, Information Systems
Vishnu Narayanan Moothedath, Jaya Prakash Champati, James Gross
Summary: This paper investigates efficient sampling policies in an edge-based feedback system, where sensor samples are sent to a back-end server for processing and generating user feedback. The trade-off between detecting events with minimum delay and reducing energy consumption is quantified using a weighted function. The convexity of the objective functions is proven using novel techniques. Additionally, adding an initial offset to the periodic sampling can further reduce energy consumption and compute the optimal offset and sampling interval.
IEEE TRANSACTIONS ON MOBILE COMPUTING
(2023)
Proceedings Paper
Computer Science, Hardware & Architecture
Alexandru-Daniel Marcu, S. Krishna Gowtam Peesapati, Jessica Moysen Cortes, Sahar Imtiaz, James Gross
Summary: As wireless systems evolve, the problems of radio resource management become more challenging, especially when energy-efficient utilization is considered. Complex artificial intelligence models have been developed, but they lack performance-explainability trade-off. In this work, an explainable AI methodology is proposed to address this issue and improve model understanding and complexity reduction through feature selection.
2023 IEEE WIRELESS COMMUNICATIONS AND NETWORKING CONFERENCE, WCNC
(2023)
Proceedings Paper
Computer Science, Hardware & Architecture
Molham Alsakati, Charlie Pettersson, Sebastian Max, Vishnu Narayanan Moothedath, James Gross
Summary: Since its release, Wi-Fi has been updated to meet user needs, especially with the rise of Augmented Reality (AR) applications. The 802.11be amendment, marketed as Wi-Fi 7, introduces Multi-Link Operation (MLO), which allows simultaneous transmission and reception over multiple links. Experimental simulations show that MLO outperforms Single-Link (SL) in terms of lower latency, higher number of AR users served, and improved performance with increased links. However, the choice of traffic-to-link allocation policies can impact performance and may result in channel blocking.
2023 IEEE WIRELESS COMMUNICATIONS AND NETWORKING CONFERENCE, WCNC
(2023)
Article
Computer Science, Information Systems
Ning Guo, Xiaopeng Yuan, Yulin Hu, Anke Schmeink
Summary: In this paper, a wireless powered communication network (WPCN) where multiple sources are used for wireless power transfer (WPT) is investigated. The goal is to achieve reliable transmissions with finite blocklength (FBL) codes by using energy harvested from the WPT sources. A fairness-aware resource allocation design is proposed for this multi-source WPCN, taking into account the practical nonlinear energy harvesting process. The design involves optimizing power and blocklength allocation, and a sub-optimal solution is obtained by decomposing the problem into two subproblems and addressing them iteratively.
Proceedings Paper
Computer Science, Information Systems
Zhusheng Wang, Sennur Ulukus
Summary: Random Symmetric Private Information Retrieval (RSPIR) is a problem that focuses on protecting the privacy of both the user and the databases while ensuring the user can download information correctly. It is similar to a digital blind box and blind version of 1-out-of-K oblivious transfer.
2022 IEEE INFORMATION THEORY WORKSHOP (ITW)
(2022)
Proceedings Paper
Telecommunications
Xiaopeng Yuan, Yulin Hu, Ming Li, Zheng Chang, Anke Schmeink
Summary: This paper examines the issue of continuous trajectory design in UAV-assisted wireless networks, and proposes an algorithm to find the optimal solution. By using duality analysis, the problem is converted into a series of pure trajectory design problems, which are optimally solved using a mechanical equivalence approach. The effectiveness of the algorithm is confirmed through simulations.
IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS (ICC 2022)
(2022)
Article
Computer Science, Information Systems
Zhilin Liu, Yao Zhu, Yulin Hu, Peng Sun, Anke Schmeink
Summary: This paper investigates mission-critical task offloading in the non-orthogonal multiple access (NOMA)-assisted mobile edge computing (MEC) networks. By deriving the overall reliability and studying the communication behavior and delay violation error, an optimal design framework for minimizing error probability is proposed. A modified block coordinate descent method is used to solve the non-convex problem. The analytical model is validated through simulations and the improved performance of the proposed design is demonstrated compared to benchmarks.
Article
Engineering, Electrical & Electronic
Hu Yulin, Wen Xuan, Yuan Xiaopeng, Jiang Hao, Zhang Jian, Cheng Lili
Summary: This paper presents a solution to the trajectory design problem of UAVs in wireless networks, proposing an effective 3D trajectory based on the Successive Hovering and Flying (SHF) structure in convex space.
JOURNAL OF ELECTRONICS & INFORMATION TECHNOLOGY
(2022)
Proceedings Paper
Computer Science, Information Systems
Yang Yang, Yulin Hu, M. Cenk Gursoy
Summary: This paper investigates the use of reconfigurable intelligent surfaces (RISs) in mobile edge computing (MEC) networks to maximize energy efficiency. The results show that adjusting the RIS phase shift matrix and the CPU frequency have significant impacts on the performance and energy efficiency.
2022 IEEE WIRELESS COMMUNICATIONS AND NETWORKING CONFERENCE (WCNC)
(2022)
