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2,237 Results Found

  • Article
  • Open Access
24 Citations
4,663 Views
24 Pages

16 July 2018

In underwater acoustic sensor networks (UASNs), medium access control (MAC) is an important issue because of its potentially significant effect on the network performance. However, designing a suitable MAC protocol for the UASN is challenging because...

  • Review
  • Open Access
30 Citations
6,419 Views
28 Pages

Review of MAC Protocols for Vehicular Ad Hoc Networks

  • Mengyuan Ma,
  • Kai Liu,
  • Xiling Luo,
  • Tao Zhang and
  • Feng Liu

24 November 2020

Vehicular ad hoc networks (VANETs) need to support the timely end-to-end transmissions of safety and non-safety messages. Medium access control (MAC) protocols can ensure fair and efficient sharing of channel resources among multiple vehicles for VAN...

  • Feature Paper
  • Article
  • Open Access
6 Citations
3,305 Views
16 Pages

Virtual Sensing Directional Hub MAC (VSDH-MAC) Protocol with Power Control

  • Arnold Chau,
  • John Dawson,
  • Paul Mitchell and
  • Tian Hong Loh

Medium access control (MAC) protocols play a vital role in making effective use of a multiple access channel as it governs the achievable performance such as channel utilization and corresponding quality of service of wireless sensor networks (WSNs)....

  • Article
  • Open Access
6 Citations
9,863 Views
21 Pages

16 January 2019

Intra-body Communication (IBC) is a communication method using the human body as a communication medium, in which body-attached devices exchange electro-magnetic (EM) wave signals with each other. The fact that our human body consists of water and el...

  • Article
  • Open Access
30 Citations
8,225 Views
19 Pages

3 January 2023

In this paper, we conduct a survey of the literature about reinforcement learning (RL)-based medium access control (MAC) protocols. As the scale of the wireless ad hoc network (WANET) increases, traditional MAC solutions are becoming obsolete. Dynami...

  • Review
  • Open Access
27 Citations
6,246 Views
45 Pages

An Analysis on Contemporary MAC Layer Protocols in Vehicular Networks: State-of-the-Art and Future Directions

  • Lopamudra Hota,
  • Biraja Prasad Nayak,
  • Arun Kumar,
  • G. G. Md. Nawaz Ali and
  • Peter Han Joo Chong

17 November 2021

Traffic density around the globe is increasing on a day-to-day basis, resulting in more accidents, congestion, and pollution. The dynamic vehicular environment induces challenges in designing an efficient and reliable protocol for communication. Time...

  • Article
  • Open Access
13 Citations
5,910 Views
33 Pages

PAD-MAC: Primary User Activity-Aware Distributed MAC for Multi-Channel Cognitive Radio Networks

  • Amjad Ali,
  • Md. Jalil Piran,
  • Hansoo Kim,
  • Jihyeok Yun and
  • Doug Young Suh

30 March 2015

Cognitive radio (CR) has emerged as a promising technology to solve problems related to spectrum scarcity and provides a ubiquitous wireless access environment. CR-enabled secondary users (SUs) exploit spectrum white spaces opportunistically and imme...

  • Article
  • Open Access
11 Citations
6,189 Views
14 Pages

31 March 2016

The Cognitive Radio Sensor Network (CRSN) is considered as a viable solution to enhance various aspects of the electric power grid and to realize a smart grid. However, several challenges for CRSNs are generated due to the harsh wireless environment...

  • Review
  • Open Access
107 Citations
20,480 Views
18 Pages

A Study of MAC Protocols for WBANs

  • Sana Ullah,
  • Bin Shen,
  • S.M. Riazul Islam,
  • Pervez Khan,
  • Shahnaz Saleem and
  • Kyung Sup Kwak

28 December 2009

The seamless integration of low-power, miniaturised, invasive/non-invasive lightweight sensor nodes have contributed to the development of a proactive and unobtrusive Wireless Body Area Network (WBAN). A WBAN provides long-term health monitoring of a...

  • Article
  • Open Access
16 Citations
3,531 Views
19 Pages

10 January 2020

In the design of media access control (MAC) mechanism in underwater acoustic sensor networks (UASNs), due to the propagation characteristic of low-speed underwater acoustic signals, it is necessary to solve the spatial–temporal uncertainty prob...

  • Article
  • Open Access
13 Citations
4,449 Views
28 Pages

SAFE-MAC: Speed Aware Fairness Enabled MAC Protocol for Vehicular Ad-hoc Networks

  • Md. Abubakar Siddik,
  • Shafika Showkat Moni,
  • Mohammad Shah Alam and
  • William A. Johnson

26 May 2019

Highly dynamic geographical topology, two-direction mobility, and varying traffic density can lead to fairness issues in Vehicular Ad-hoc Networks (VANETs). The Medium Access Control (MAC) protocol plays a vital role in sharing the common wireless ch...

  • Article
  • Open Access
1 Citations
9,090 Views
28 Pages

MQ-MAC: A Multi-Constrained QoS-Aware Duty Cycle MAC for Heterogeneous Traffic in Wireless Sensor Networks

  • Muhammad Mostafa Monowar,
  • Md. Obaidur Rahman,
  • Choong Seon Hong and
  • Sungwon Lee

1 November 2010

Energy conservation is one of the striking research issues now-a-days for power constrained wireless sensor networks (WSNs) and hence, several duty-cycle based MAC protocols have been devised for WSNs in the last few years. However, assimilation of d...

  • Article
  • Open Access
4 Citations
8,878 Views
20 Pages

28 February 2011

The power consumption and latency of existing MAC protocols for wireless sensor networks (WSNs) are high in heterogeneous convergecast, where each sensor node generates different amounts of data in one convergecast operation. To solve this problem, w...

  • Article
  • Open Access
1 Citations
3,071 Views
18 Pages

18 January 2023

This paper proposes a MAC protocol for ad hoc networks using In-band Full-duplex (IBFD) wireless communications, which are named as AdHoc-FDMAC. To utilize IBFD communications in ad hoc networks, this protocol modifies a number of control frames in t...

  • Article
  • Open Access
6 Citations
4,114 Views
23 Pages

Secure Z-MAC Protocol as a Proposed Solution for Improving Security in WSNs

  • Mona Nasser Almansoori,
  • Ahmad Ahmad Elshamy and
  • Ahmad Abdel Muttalib Mustafa

23 February 2022

Security is one of the major issues in Wireless Sensor Networks (WSNs), as poor security disrupts the entire network and can have a significant effect on data transmission. WSNs need safe data transmission at a high rate while maintaining data integr...

  • Article
  • Open Access
15 Citations
7,263 Views
12 Pages

An Energy Efficient MAC Protocol for Wireless Passive Sensor Networks

  • Qingyao Yu,
  • Guangming Li,
  • Xiaojie Hang,
  • Kun Fu and
  • And Tianqi Li

Medium Access Control (MAC) protocol is one of the key network protocols that ensure Wireless Sensor Networks (WSNs) maintain high performance during communication. MAC protocol design plays an important role in improving the performances of the whol...

  • Article
  • Open Access
12 Citations
5,304 Views
28 Pages

1 October 2016

In wireless sensor networks, in order to satisfy the requirement of long working time of energy-limited nodes, we need to design an energy-efficient and lifetime-extended medium access control (MAC) protocol. In this paper, a node cooperation mechani...

  • Article
  • Open Access
5 Citations
2,241 Views
28 Pages

14 August 2022

The Internet of Things (IoT) connects our world in more ways than we imagine. Wireless sensor network (WSN) technology is at the core of implementing IoT architectures. Although WSN applications give us enormous opportunities, their deployment is cha...

  • Article
  • Open Access
57 Citations
6,529 Views
26 Pages

A MAC Protocol for Medical Monitoring Applications of Wireless Body Area Networks

  • Minglei Shu,
  • Dongfeng Yuan,
  • Chongqing Zhang,
  • Yinglong Wang and
  • Changfang Chen

3 June 2015

Targeting the medical monitoring applications of wireless body area networks (WBANs), a hybrid medium access control protocol using an interrupt mechanism (I-MAC) is proposed to improve the energy and time slot utilization efficiency and to meet the...

  • Article
  • Open Access
37 Citations
5,266 Views
25 Pages

An Efficient Scalable Scheduling MAC Protocol for Underwater Sensor Networks

  • Faisal Alfouzan,
  • Alireza Shahrabi,
  • Seyed Mohammad Ghoreyshi and
  • Tuleen Boutaleb

25 August 2018

Underwater Sensor Networks (UWSNs) utilise acoustic waves with comparatively lower loss and longer range than those of electromagnetic waves. However, energy remains a challenging issue in addition to long latency, high bit error rate, and limited ba...

  • Article
  • Open Access
4 Citations
2,971 Views
13 Pages

RNA-Binding Protein MAC5A Is Required for Gibberellin-Regulated Stamen Development

  • Hua Liu,
  • Hongna Shang,
  • Huan Yang,
  • Wenjie Liu,
  • Daisuke Tsugama,
  • Ken-Ichi Nonomura,
  • Aimin Zhou,
  • Wenwu Wu,
  • Tetsuo Takano and
  • Shenkui Liu

11 February 2022

The development of floral organs is coordinated by an elaborate network of homeotic genes, and gibberellin (GA) signaling is involved in floral organ development; however, the underlying molecular mechanisms remain elusive. In the present study, we f...

  • Article
  • Open Access
5 Citations
2,420 Views
23 Pages

RAP-MAC: A Robust and Adaptive Pipeline MAC Protocol for Underwater Acoustic String Networks

  • Xiaohe Pan,
  • Mengzhuo Liu,
  • Jifeng Zhu,
  • Lipeng Huo,
  • Zheng Peng,
  • Jun Liu and
  • Jun-Hong Cui

17 June 2024

The development of underwater acoustic networks is a significant expansion of Internet-of-Things technology to underwater environments. These networks are essential for a variety of marine applications. For many practical uses, it is more efficient t...

  • Communication
  • Open Access
3 Citations
2,806 Views
14 Pages

Calculation of AeroMACS Spectrum Requirements Based on Traffic Simulator

  • Hong-Gi Shin,
  • Hyung-Jung Kim,
  • Sang-Wook Lee,
  • Hyun-Goo Yoon and
  • Yong-Hoon Choi

11 May 2021

In this paper, we propose a methodology for calculating the necessary spectrum requirements of aeronautical mobile airport communication system (AeroMACS) to provide various airport communication services. To accurately calculate the spectrum require...

  • Article
  • Open Access
10 Citations
5,472 Views
21 Pages

25 October 2019

Nano-networks are composed of interconnected nano-nodes and can enable unprecedented applications in various fields. Due to the peculiarities of nano-networks, such as high density, extremely limited energy and computational resources, traditional ca...

  • Article
  • Open Access
61 Citations
7,768 Views
16 Pages

Cooperative Energy Harvesting-Adaptive MAC Protocol for WBANs

  • Volker Esteves,
  • Angelos Antonopoulos,
  • Elli Kartsakli,
  • Manel Puig-Vidal,
  • Pere Miribel-Català and
  • Christos Verikoukis

28 May 2015

In this paper, we introduce a cooperative medium access control (MAC) protocol, named cooperative energy harvesting (CEH)-MAC, that adapts its operation to the energy harvesting (EH) conditions in wireless body area networks (WBANs). In particular, t...

  • Review
  • Open Access
12 Citations
5,159 Views
26 Pages

19 May 2022

With the increase in the number of connected devices, to facilitate more users with high-speed transfer rate and enormous bandwidth, millimeter-wave (mmWave) technology has become one of the promising research sectors in both industry and academia. O...

  • Review
  • Open Access
2 Citations
5,930 Views
7 Pages

28 November 2020

Members of the Mycobacterium avium complex (MAC) are waterborne, opportunistic pathogens whose characteristics make urban water distribution systems and household plumbing ideal habitats for their survival, persistence and growth. Rather than contami...

  • Review
  • Open Access
7 Citations
3,241 Views
15 Pages

An Update on the Current State of SARS-CoV-2 Mac1 Inhibitors

  • Joseph J. O’Connor,
  • Dana Ferraris and
  • Anthony R. Fehr

7 October 2023

Non-structural protein 3 (nsp3) from all coronaviruses (CoVs) contains a conserved macrodomain, known as Mac1, that has been proposed as a potential therapeutic target for CoVs due to its critical role in viral pathogenesis. Mac1 is an ADP-ribose bin...

  • Article
  • Open Access
2 Citations
4,294 Views
11 Pages

Scalable Preparation of the Masked Acyl Cyanide TBS-MAC

  • Haley Hinton,
  • Jack Patterson,
  • Jared Hume,
  • Krunal Patel and
  • Julie Pigza

29 June 2023

This paper describes the three-step synthesis of TBS-MAC, a masked acyl cyanide (MAC) and a versatile one-carbon oxidation state three synthon. We have developed a scalable and detailed synthesis that involves: (1) acetylation of malononitrile to for...

  • Article
  • Open Access
11 Citations
4,191 Views
23 Pages

MAC/PHY Comprehensive Visible Light Communication Networks Simulation

  • Edmundo Torres-Zapata,
  • Victor Guerra,
  • Jose Rabadan,
  • Martin Luna-Rivera and
  • Rafael Perez-Jimenez

23 October 2020

In this paper, the effect of channel conditions on the global behavior of a wireless Visible Light Communications (VLC) optical network are studied. It presents a system-level simulator that considers jointly a channel propagation model and the MAC m...

  • Article
  • Open Access
6 Citations
3,818 Views
21 Pages

Receiver-Initiated Handshaking MAC Based on Traffic Estimation for Underwater Sensor Networks

  • Yuan Dong,
  • Lina Pu,
  • Yu Luo,
  • Zheng Peng,
  • Haining Mo,
  • Yun Meng,
  • Yi Zhao and
  • Yuzhi Zhang

12 November 2018

In underwater sensor networks (UWSNs), the unique characteristics of acoustic channels have posed great challenges for the design of medium access control (MAC) protocols. The long propagation delay problem has been widely explored in recent literatu...

  • Article
  • Open Access
4 Citations
1,689 Views
21 Pages

Wireless sensor networks (WSNs) based on the IEEE 802.15.4 standard have important applications in many fields, such as the Internet of Things and smart cities because of their low energy consumption. Hybrid carrier sense multiple access/time divisio...

  • Article
  • Open Access
5 Citations
2,661 Views
18 Pages

A QoS-Enabled Medium-Transparent MAC Protocol for Fiber-Wireless 5G RAN Transport Networks

  • George Kalfas,
  • Dimitris Palianopoulos,
  • Agapi Mesodiakaki,
  • Marios Gatzianas,
  • Christos Vagionas,
  • Ronis Maximidis and
  • Nikos Pleros

30 August 2022

In order to meet the ever-increasing 5G and beyond Radio Access Network (RAN) densification demands, Fiber-Wireless transport networks are expected to play a key role in accelerating 5G deployment by providing the essential RAN flexibility, while at...

  • Article
  • Open Access
1 Citations
2,272 Views
16 Pages

4 September 2022

In wireless networks, MAC scheduling methods can be divided into two types according to the implementation model: centralized and distributed scheduling. By reasonably designing MAC scheduling policies, both centralized and distributed schedulers can...

  • Article
  • Open Access
1 Citations
1,682 Views
14 Pages

15 September 2023

For the point-to-point additive white Gaussian noise (AWGN) channel with an eavesdropper and feedback, it has already been shown that the secrecy capacity can be achieved by a secret key-based feedback scheme, where the channel feedback is used for s...

  • Review
  • Open Access
64 Citations
13,481 Views
44 Pages

Eliminating the Heart from the Curcumin Molecule: Monocarbonyl Curcumin Mimics (MACs)

  • Dinesh Shetty,
  • Yong Joon Kim,
  • Hyunsuk Shim and
  • James P. Snyder

24 December 2014

Curcumin is a natural product with several thousand years of heritage. Its traditional Asian application to human ailments has been subjected in recent decades to worldwide pharmacological, biochemical and clinical investigations. Curcumin’s Achilles...

  • Article
  • Open Access
49 Citations
6,301 Views
20 Pages

The Medium Access Control (MAC) layer protocol is the most important part of any network, and is considered to be a fundamental protocol that aids in enhancing the performance of networks and communications. However, the MAC protocol’s design for und...

  • Review
  • Open Access
36 Citations
11,448 Views
53 Pages

29 April 2021

The Internet of Things (IoT) is revolutionizing technology in a wide variety of areas, from smart healthcare to smart transportation. Due to the increasing trend in the number of IoT devices and their different levels of energy requirements, one of t...

  • Article
  • Open Access
3 Citations
3,065 Views
18 Pages

Throughput Analysis for Wireless Full-Duplex Multi-Hop Networks with RTS/CTS-Based MAC

  • Yosuke Yumen,
  • Shota Sakakura,
  • Kosuke Sanada,
  • Hiroyuki Hatano and
  • Kazuo Mori

Medium access control (MAC) protocol operations for in-band full duplex multi-hop networks play an important role in efficient data relaying and throughput enhancement. Knowledge of the relationship between essential operations in MAC protocol for fu...

  • Article
  • Open Access
5 Citations
3,594 Views
15 Pages

1 January 2019

In this paper, we consider the problem of decision fusion for noncoherent detection in a wireless sensor network. Novel to the current work is the integration of the hybrid multi-access channel (MAC) in the fusion rule design. We assume that sensors...

  • Article
  • Open Access
15 Citations
4,524 Views
14 Pages

Enabling Green Wireless Sensor Networks: Energy Efficient T-MAC Using Markov Chain Based Optimization

  • Mahendra Ram,
  • Sushil Kumar,
  • Vinod Kumar,
  • Ajay Sikandar and
  • Rupak Kharel

Due to the rapidly growing sensor-enabled connected world around us, with the continuously decreasing size of sensors from smaller to tiny, energy efficiency in wireless sensor networks has drawn ample consideration in both academia as well as in ind...

  • Article
  • Open Access
1 Citations
11,204 Views
22 Pages

29 March 2010

The wireless personal area network (WPAN) is an emerging wireless technology for future short range indoor and outdoor communication applications. The IEEE 802.15.3 medium access control (MAC) is proposed to coordinate the access to the wireless medi...

  • Short Communication
  • Open Access
13 Citations
6,746 Views
9 Pages

24 July 2015

Legionella spp. and Mycobacterium avium complex (MAC) are opportunistic pathogens of public health concern. Hot water systems, including showers, have been identified as a potential source of infection. This paper describes the colonization of Legion...

  • Article
  • Open Access
3 Citations
2,785 Views
11 Pages

On the Size of Subclasses of Quasi-Copulas and Their Dedekind–MacNeille Completion

  • Fabrizio Durante,
  • Juan Fernández-Sánchez,
  • Wolfgang Trutschnig and
  • Manuel Úbeda-Flores

18 December 2020

We study some topological properties of the class of supermodular n-quasi-copulas and check that the topological size of the Dedekind–MacNeille completion of the set of n-copulas is small, in terms of the Baire category, in the Dedekind–M...

  • Article
  • Open Access
5 Citations
3,022 Views
30 Pages

28 December 2020

The prevalence of the Internet of Things (IoT) paradigm in more and more applications associated with our daily lives has induced a dense network in which numerous wireless devices, many of which have limited capabilities (e.g., power, memory, comput...

  • Review
  • Open Access
7 Citations
3,995 Views
30 Pages

23 July 2020

Wireless sensor networks (WSNs) have been used for environmental monitoring and reporting for many decades. Energy consumption is a significant research topic because wireless sensor nodes are battery-operated to be highly energy-constrained. Several...

  • Article
  • Open Access
7 Citations
3,178 Views
16 Pages

Heterogeneous Catalytic Ozonation of Phenol by a Novel Binary Catalyst of Fe-Ni/MAC

  • Yunlong Yang,
  • Xianwei Shi,
  • Min Zhao,
  • Shuyi Chu and
  • Jibo Xiao

1 October 2020

Iron-nickel supported on modified active carbon (Fe-Ni/MAC) was prepared and characterized by XRD, SEM, XPS and EDS, followed by evaluating the practicability of Fe-Ni/MAC in treating real wastewater with a high concentration of phenol. Results showe...

  • Article
  • Open Access
13 Citations
3,288 Views
19 Pages

24 March 2021

Medium access control (MAC) is one of the key requirements in underwater acoustic sensor networks (UASNs). For a MAC protocol to provide its basic function of efficient sharing of channel access, the highly dynamic underwater environment demands MAC...

  • Article
  • Open Access
22 Citations
6,805 Views
17 Pages

Synthesizing Existing CSMA and TDMA Based MAC Protocols for VANETs

  • Jiawei Huang,
  • Qi Li,
  • Shaohua Zhong,
  • Lianhai Liu,
  • Ping Zhong,
  • Jianxin Wang and
  • Jin Ye

10 February 2017

Many Carrier Sense Multiple Access (CSMA) and Time Division Multiple Access (TDMA) based medium access control (MAC) protocols for vehicular ad hoc networks (VANETs) have been proposed recently. Contrary to the common perception that they are competi...

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