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This paper presents an empirical discussion on the design and implementation of a power-efficient Medium Access Control (MAC) protocol for in-body and on-body sensor networks. We analyze the performance of a beacon-enabled IEEE 802.15.4,…

Networking and Internet Architecture · Computer Science 2018-10-26 Sana Ullah , Xizhi An , Kyung Sup Kwak

In this paper, we first presented an analytically discussion about energy efficiency of Medium Access Control (MAC) protocols for Wireless Body Area Sensor Networks (WBASNs). For this purpose, different energy efficient MAC protocols with…

Networking and Internet Architecture · Computer Science 2013-03-11 N. Javaid , S. Hayat , M. Shakir , M. A. Khan , S. H. Bouk , Z. A. Khan

The feasibility of practical in-band full-duplex radios has recently been demonstrated experimentally. One way to leverage full-duplex in a network setting is to enable three-node full-duplex, where a full- duplex access point (AP)…

Networking and Internet Architecture · Computer Science 2016-09-01 Shih-Ying Chen , Ting-Feng Huang , Kate Ching-Ju Lin , H. -W. Peter Hong , Ashutosh Sabharwal

This paper presents the design, implementation and performance evaluation of a location MAC protocol, called L-MAC, for wireless sensor networks. L-MAC is a combination of TDMA and CSMA while offsetting the high overhead of time slot…

Networking and Internet Architecture · Computer Science 2022-03-22 Jason Chen , Yang Xi

Massive multiple-input multiple-output (MIMO) systems require downlink channel state information (CSI) at the base station (BS) to achieve spatial diversity and multiplexing gains. In a frequency division duplex (FDD) multiuser massive MIMO…

Signal Processing · Electrical Eng. & Systems 2020-09-09 Mahdi Boloursaz Mashhadi , Qianqian Yang , Deniz Gunduz

Although the performance of the medium access control (MAC) of the IEEE 802.15.4 has been investigated under the assumption of ideal wireless channel, the understanding of the cross-layer dynamics between MAC and physical layer is an open…

Networking and Internet Architecture · Computer Science 2013-07-25 Piergiuseppe Di Marco , Carlo Fischione , Fortunato Santucci , Karl Henrik Johansson

A multi-channel MAC seems to be an interesting approach for improving network throughput by multiplexing transmissions over orthogonal channels. In particular, Molecular MAC has recently proposed to modify the standard IEEE 802.11 DCF…

Networking and Internet Architecture · Computer Science 2010-07-26 Benoit Darties , Fabrice Theoleyre , Andrzej Duda

Based on its great successes in inference and denosing tasks, Dictionary Learning (DL) and its related sparse optimization formulations have garnered a lot of research interest. While most solutions have focused on single layer…

Machine Learning · Computer Science 2021-04-22 Wen Tang , Emilie Chouzenoux , Jean-Christophe Pesquet , Hamid Krim

Network energy efficiency is a main pillar in the design and operation of wireless communication systems. In this paper, we investigate a dense radio access network (dense-RAN) capable of radiated power management at the base station (BS).…

Signal Processing · Electrical Eng. & Systems 2023-04-18 Yuchao Chang , Wen Chen , Jun Li , Jianpo Liu , Haoran Wei , Zhendong Wang , Naofal Al-Dhahir

We consider a dynamic multichannel access problem, where multiple correlated channels follow an unknown joint Markov model. A user at each time slot selects a channel to transmit data and receives a reward based on the success or failure of…

Networking and Internet Architecture · Computer Science 2018-02-21 Shangxing Wang , Hanpeng Liu , Pedro Henrique Gomes , Bhaskar Krishnamachari

In cognitive radio networks, spectrum sensing is a crucial technique to discover spectrum opportunities for the Secondary Users (SUs). The quality of spectrum sensing is evaluated by both sensing accuracy and sensing efficiency. Here,…

Emerging Technologies · Computer Science 2013-04-23 Yi Liu , Shengli Xie , Rong Yu , Yan Zhang , Chau Yuen

In recent years, the training requirements of many state-of-the-art Deep Learning (DL) models have scaled beyond the compute and memory capabilities of a single processor, and necessitated distribution among processors. Training such…

Distributed, Parallel, and Cluster Computing · Computer Science 2023-03-16 Quentin Anthony , Ammar Ahmad Awan , Jeff Rasley , Yuxiong He , Aamir Shafi , Mustafa Abduljabbar , Hari Subramoni , Dhabaleswar Panda

Deep learning (DL) has seen great success in the computer vision (CV) field, and related techniques have been used in security, healthcare, remote sensing, and many other fields. As a parallel development, visual data has become universal…

Signal Processing · Electrical Eng. & Systems 2020-12-03 Yu Tian , Gaofeng Pan , Mohamed-Slim Alouini

In this paper, we propose a novel cooperative multi-relay transmission scheme for mobile terminals to exploit spatial diversity. By improving the timeliness of measured channel state information (CSI) through deep learning (DL)-based…

Information Theory · Computer Science 2021-02-08 Wei Jiang , Hans Dieter Schotten

On account of its many successes in inference tasks and denoising applications, Dictionary Learning (DL) and its related sparse optimization problems have garnered a lot of research interest. While most solutions have focused on single…

Machine Learning · Computer Science 2020-10-22 Wen Tang , Emilie Chouzenoux , Jean-Christophe Pesquet , Hamid Krim

In this article, deep learning is applied to estimate the uplink channels for mixed analog-to-digital converters (ADCs) massive multiple-input multiple-output (MIMO) systems, where a portion of antennas are equipped with high-resolution…

Information Theory · Computer Science 2019-08-20 Shen Gao , Peihao Dong , Zhiwen Pan , Geoffrey Ye Li

Physical-layer network coding (PNC) is a promising approach for wireless networks. It allows nodes to transmit simultaneously. Due to the difficulties of scheduling simultaneous transmissions, existing works on PNC are based on simplified…

Networking and Internet Architecture · Computer Science 2013-05-15 Shiqiang Wang , Qingyang Song , Xingwei Wang , Abbas Jamalipour

Accurate and efficient estimation of the high dimensional channels is one of the critical challenges for practical applications of massive multiple-input multiple-output (MIMO). In the context of hybrid analog-digital (HAD) transceivers,…

Information Theory · Computer Science 2022-02-08 Jiabao Gao , Caijun Zhong , Geoffrey Ye Li , Zhaoyang Zhang

Designing decentralized policies for wireless communication networks is a crucial problem, which has only been partially solved in the literature so far. In this paper, we propose the Decentralized Markov Decision Process (Dec-MDP)…

Information Theory · Computer Science 2017-01-10 Alessandro Biason , Subhrakanti Dey , Michele Zorzi

Hybrid analog and digital beamforming transceivers are instrumental in addressing the challenge of expensive hardware and high training overheads in the next generation millimeter-wave (mm-Wave) massive MIMO (multiple-input multiple-output)…

Signal Processing · Electrical Eng. & Systems 2022-01-04 Ahmet M. Elbir , Kumar Vijay Mishra , M. R. Bhavani Shankar , Björn Ottersten