Article
Engineering, Civil
Farimasadat Miri, Amir Javadpour, Forough Ja'fari, Arun Kumar Sangaiah, Richard Pazzi
Summary: With the increasing popularity of interconnected Vehicular ad-hoc networks (VANET) and intelligent transportation systems, the importance of maintaining acceptable levels of Quality of Service (QoS) and Quality of Experience (QoE) in time sensitive applications is crucial. Allocating the right number of resources in a distributed manner to avoid congestion and fill deficiencies is a challenging issue. Vehicle networks play a significant role in providing safety, comfort, and entertainment, making them a compelling research topic in intelligent transportation systems.
IEEE TRANSACTIONS ON INTELLIGENT TRANSPORTATION SYSTEMS
(2023)
Article
Computer Science, Information Systems
Taoufik Yeferny, Sadok Ben Yahia
Summary: Enhancing road safety and providing infotainment services are key priorities for the Intelligent Transport System (ITS) today. ITS relies on vehicular ad hoc networks (VANETs) to track and share real-time driving information, improving road safety and driving comfort. Designing efficient data dissemination protocols in VANET is crucial, with the introduction of the Markov Chain-based data Dissemination Protocol (MCDP) showing superior effectiveness and efficiency compared to existing protocols.
COMPUTER COMMUNICATIONS
(2021)
Article
Computer Science, Information Systems
Shi-Yuan Han, Chang-Yue Zhang
Summary: This paper proposes an adaptive time slot access MAC protocol (ASMAC) for addressing the problem of time slot resource exhaustion or waste in VANET communication. ASMAC adjusts the time slot access based on the vehicle's driving direction and traffic density ratio, and the effectiveness of the protocol is verified through simulation results.
Article
Engineering, Civil
Jingbang Wu, Huimei Lu, Yong Xiang, Feng Wang, Haisheng Li
Summary: This paper proposes a self-adaptive MAC protocol SATMAC for VANETs to support high-priority safety applications and infotainment requirements. The proposed protocol improves the stability of time slot scheduling and supports various densities of vehicles through a slot status updating strategy and an adaptive frame length approach. The protocol is evaluated through theoretical analysis, simulations, and implementation on a FPGA-based testbed.
IEEE TRANSACTIONS ON INTELLIGENT TRANSPORTATION SYSTEMS
(2022)
Article
Computer Science, Information Systems
Shams Al Ajrawi, Ramesh Rao, Mahasweta Sarkar
Summary: Brain-computer interface (BCI) systems allow individuals with motor disorders to control external devices using their thoughts. The development of reliable BCI systems faces challenges like network lifetime and MAC protocols. Two novel MAC protocols using passive UHF-RFID were proposed to provide efficient and reliable communication in BCI applications.
CMC-COMPUTERS MATERIALS & CONTINUA
(2021)
Review
Telecommunications
Suchi Johari, M. Bala Krishna
Summary: Vehicular ad hoc networks play a critical role in intelligent transportation systems, particularly in message delivery and protocols. TDMA MAC protocols address issues such as link failures and load imbalance in the network by reducing message collisions and ensuring secure message delivery.
VEHICULAR COMMUNICATIONS
(2021)
Article
Computer Science, Information Systems
Zidong Ming, Xin Liu, Xiaofei Yang, Mei Wang
Summary: The CSMA/CA algorithm solves the multi-user channel access problem using the binary backoff mechanism, but this mechanism is vulnerable to jamming attacks. Existing research uses channel-hopping to avoid jamming, but this method fails when the channel is limited or hard to hop. To address this problem, a Markov decision process (MDP) model with contention window (CW) is proposed as the state, throughput as the reward, and backoff action as the control variable. Based on this model, an intelligent CSMA/CA protocol based on distributed reinforcement learning is designed to improve anti-jamming ability through learning and adaptation. Simulation results show that the proposed algorithm performs significantly better in jamming and non-jamming environments compared to CSMA/CA and SETL algorithms, and the performance remains stable as the number of nodes increases. When the communication node is 10, the proposed algorithm achieves increased normalized throughputs of 28.45%, 21.20%, and 17.07% in non-jamming, intermittent jamming, and random jamming scenarios, respectively, while reducing collision rates by 83.93%, 95.71%, and 81.58%.
Article
Computer Science, Hardware & Architecture
Achour Achroufene, Mourad Chelik, Nassima Bouadem
Summary: Data fusion process utilizes IoT data to improve QoS, with a focus on improving data quality in WSN through a modified CSMA/CA protocol.
Article
Computer Science, Information Systems
Sonal, S. R. N. Reddy, Dinesh Kumar
Summary: This study proposes a novel WBAN architecture for early detection of Congenital Heart Diseases (CHD) in neonates. The architecture includes priority-based data identification, secure data transmission, optimal channel selection, and CHD classification using a neuro-fuzzy algorithm.
JOURNAL OF KING SAUD UNIVERSITY-COMPUTER AND INFORMATION SCIENCES
(2022)
Article
Engineering, Electrical & Electronic
Mohammed S. Bahbahani, Emad Alsusa, Ali Hammadi
Summary: Future vehicular wireless applications require high throughput ultra-reliable low latency communication, which is not supported by current wireless standards. Hybrid network designs combining millimeter-wave and Sub-6 GHz communications have been proposed for vehicle-to-everything (V2X) networks. In this study, we propose a linear vehicular network where vehicles in the same lane form a Lane Cluster (LC) using directional millimeter-wave antennas. Data packets are propagated along the LC in a multi-hop fashion, and omnidirectional antennas are used to disseminate packets to nearby LCs, RSUs, and cellular base stations. We also develop MAC protocols and schedule coordination protocols to address channel contention and cross-lane interference issues. Evaluations show that the proposed protocols achieve high throughput ultra-reliable low latency communication while considering the practicality of millimeter-wave technology.
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY
(2023)
Article
Engineering, Electrical & Electronic
Xuming Zeng, Kezhong Liu, Jie Ma, Mozi Chen, Ming Yu
Summary: The study analyzed the physical-layer packet loss rate distribution of IEEE 802.15.4 sensor network in ship indoor environment and proposed an analysis model based on a three-dimensional Markov chain accounting for physical-layer packet loss rate and MAC-layer retransmission. The effects of three MAC parameters on average delay and reliability were evaluated, showing a 2.09% and 1.37% percentage error in the analysis model for delay and reliability, respectively. The research provided a trade-off analysis between average delay and average reliability based on the measured data of physical-layer packet loss rate in shipboard environment for different QoS requirements.
IEEE SENSORS JOURNAL
(2021)
Article
Computer Science, Information Systems
Hamed Mosavat-Jahromi, Yue Li, Yuanzhi Ni, Lin Cai
Summary: This paper proposes a distributed and adaptive reservation based MAC protocol (DARP) to address the reliability and scalability issues of beacon broadcasting in VANETs. By analyzing protocol performance, parameters can be adjusted to reduce collision probability and enhance reliability and scalability.
IEEE TRANSACTIONS ON MOBILE COMPUTING
(2021)
Article
Computer Science, Hardware & Architecture
Mahshad Parsa, Seyed Ahmad Motamedi
Summary: In this paper, a novel comprehensive analytical model for the hybrid MAC of IEEE 802.15.3c standard based on a two-dimensional Markov chain has been proposed, with a focus on extracting mathematical equations to analyze the QoS parameters. The paper also considers key analytical parameters such as queue size, waiting time, queue saturation boundary, and system instability. Through OPNET simulation, the proposed model is shown to be more accurate than other studies.
Article
Computer Science, Information Systems
Mahshad Parsa, Seyed Ahmad Motamedi, Mohammadreza Pourfard
Summary: In this paper, a comprehensive Markov chain model is presented for analyzing the characteristics and performance of the IEEE 802.15.3c standard. By considering the directional antenna, hybrid MAC and queue, the model provides important information about network performance. The impact of various parameters on system throughput, delay, reliability, etc. is investigated, and the accuracy of the model is validated through OPNET simulation.
Article
Engineering, Electrical & Electronic
Damilola D. Olatinwo, Adnan M. Abu-Mahfouz, Gerhard P. Hancke
Summary: Energy efficiency is an important requirement in the design of a wireless body area network (WBAN) system, especially for biomedical sensor devices with limited power resources. This paper proposes an energy-aware multi-group hybrid MAC (MG-HYMAC) protocol to improve the energy efficiency and lifetime of biomedical sensor devices in personalized healthcare systems. The protocol utilizes a combination of CSMA/CA and TDMA schemes, along with transmission scheduling and power control techniques, to reduce collisions and prolong battery life, ultimately improving the overall network lifetime.
IEEE SENSORS JOURNAL
(2022)
Article
Telecommunications
Jahnvi Tiwari, Arun Prakash, Rajeev Tripathi
Summary: This paper proposes a novel cooperative MAC protocol for safety applications, which enables proactive channel switching through collaboration and channel status report exchange. CCRV shows advantages in throughput, packet delivery ratio, and average delay, reducing the average delay by 37% compared to existing methods.
VEHICULAR COMMUNICATIONS
(2021)
Article
Telecommunications
Jahnvi Tiwari, Arun Prakash, Rajeev Tripathi, Kshirasagar Naik
Summary: Advancements in intelligent transportation require a dependable MAC protocol for high-priority safety broadcasts. This paper presents a Fair and Cooperative MAC protocol for heterogeneous CR-VANETs (FCCR-MAC) that improves system performance and fairness through cooperation and better resource allocation.
IEEE TRANSACTIONS ON COGNITIVE COMMUNICATIONS AND NETWORKING
(2022)
Article
Computer Science, Information Systems
Jahnvi Tiwari, Arun Prakash, Rajeev Tripathi
Summary: This paper proposes a novel MAC protocol (ACCRV-MAC) that combines a dynamic contention window backoff mechanism and a cooperative makeup strategy to enhance network performance. By adjusting the backoff time according to traffic density, ACCRV-MAC improves throughput by 38.3% and reduces network latency by 49% compared to existing MAC protocols.
