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Time delays in communication networks are one of the main concerns in deploying robots with computation boards on the edge. This article proposes a multi-stage Nonlinear Model Predictive Control (NMPC) that is capable of handling varying…

机器人学 · 计算机科学 2022-08-09 Andreas Papadimitriou , Hedyeh Jafari , Sina Sharif Mansouri , George Nikolakopoulos

Ensuring safe separation between aircraft is a critical challenge in air traffic management, particularly in urban air mobility (UAM) environments where high traffic density and low altitudes require precise control. In these environments,…

多智能体系统 · 计算机科学 2025-01-16 Surya Murthy , Tyler Ingebrand , Sophia Smith , Ufuk Topcu , Peng Wei , Natasha Neogi

We design a cross-layer approach to optimize the joint use of multi-packet reception and network coding, in order to relieve congestion. We construct a model for the behavior of the 802.11 MAC and apply it to several key canonical topology…

网络与互联网体系结构 · 计算机科学 2011-02-01 Jason Cloud , Linda Zeger , Muriel Médard

This paper presents CRESM, a novel collision resolution method for decoding collided packets in random-access wireless networks. In a collision, overlapping signals from several sources are received simultaneously at a receiver. CRESM…

网络与互联网体系结构 · 计算机科学 2008-10-03 Lu Lu , Soung Chang Liew , Shengli Zhang

Due to the zero nontrivial aperiodic correlation of complete complementary code (CCCs), it is used in asynchronous multi carrier code division multiple access (MC-CDMA) communication to provide zero interference performance. However, there…

信息论 · 计算机科学 2021-05-24 Bingsheng Shen , Yang Yang , Zhengchun Zhou

We design a cross-layer approach to aid in develop- ing a cooperative solution using multi-packet reception (MPR), network coding (NC), and medium access (MAC). We construct a model for the behavior of the IEEE 802.11 MAC protocol and apply…

网络与互联网体系结构 · 计算机科学 2011-07-21 Jason Cloud , Linda Zeger , Muriel Médard

This paper presents a survey of energy efficiency of Medium Access Control (MAC) protocols for Wireless Body Area Sensor Networks (WBASNs). We highlight the features of MAC protocols along with their advantages and limitations in context of…

网络与互联网体系结构 · 计算机科学 2012-07-12 S. Hayat , N. Javaid , Z. A. Khan , A. Shareef , A. Mahmood , S. H. Bouk

Carrier Sense Multiple Access (CSMA) is widely used as a Medium Access Control (MAC) in wireless networks due to its simplicity and distributed nature. This motivated researchers to find CSMA schemes that achieve throughput optimality. In…

信息论 · 计算机科学 2019-08-13 Ali Maatouk , Mohamad Assaad , Anthony Ephremides

We consider the classical contention resolution problem where nodes arrive over time, each with a message to send. In each synchronous slot, each node can send or remain idle. If in a slot one node sends alone, it succeeds; otherwise, if…

分布式、并行与集群计算 · 计算机科学 2021-11-15 Yonggang Jiang , Chaodong Zheng

In this paper, delay-free, low complexity, joint source-channel coding (JSCC) for transmission of two correlated Gaussian memoryless sources over a Gaussian Multiple Access Channel (GMAC) is considered. The main contributions of the paper…

In dynamic wireless ad-hoc networks (DynWANs), autonomous computing devices set up a network for the communication needs of the moment. These networks require the implementation of a medium access control (MAC) layer. We consider MAC…

网络与互联网体系结构 · 计算机科学 2013-08-30 Pierre Leone , Elad M. Schiller

In this paper, we propose a novel joint caching and massive multiple-input multiple-output (MIMO) transmission scheme, referred to as cache-aided massive MIMO, for advanced downlink cellular communications. In addition to reaping the…

信号处理 · 电气工程与系统科学 2019-03-25 Xiao Wei , Lin Xiang , Laura Cottatellucci , Tao Jiang , Robert Schober

In this paper, we study fault-tolerant distributed consensus in wireless systems. In more detail, we produce two new randomized algorithms that solve this problem in the abstract MAC layer model, which captures the basic interface and…

分布式、并行与集群计算 · 计算机科学 2018-10-09 Calvin Newport , Peter Robinson

Code division multiplexing (CDM)-based random access is used in many practical wireless systems. With CDM-based random access, a set of sequences is reserved for random access. A remote station transmits a random access packet using a…

信号处理 · 电气工程与系统科学 2019-10-14 Hoesang Choi , Hichan Moon

Energy conservation has been an important area of interest in Wireless Sensor networks (WSNs). Medium Access Control (MAC) protocols play an important role in energy conservation. In this paper, we describe CSMA based MAC protocols for WSN…

网络与互联网体系结构 · 计算机科学 2012-05-09 Himanshu singh , Bhaskar Biswas

To support interference-free quasi-synchronous code-division multiple-access (QS-CDMA) communication with low spectral density profile in a cognitive radio (CR) network, it is desirable to design a set of CDMA spreading sequences with…

信息论 · 计算机科学 2016-11-17 Su Hu , Zilong Liu , Yong Liang Guan , Wenhui Xiong , Guoan Bi , Shaoqian Li

In this two-part paper, we propose a novel medium access control (MAC) protocol for machine-type communications in the industrial internet of things. The considered use case features a limited geographical area and a massive number of…

网络与互联网体系结构 · 计算机科学 2020-11-24 Jie Gao , Weihua Zhuang , Mushu Li , Xuemin , Shen , Xu Li

In the context of radio distributed networks, we present a generalized approach for the Medium Access Control (MAC) with fixed congestion window. Our protocol is quite simple to analyze and can be used in a lot of different situations. We…

网络与互联网体系结构 · 计算机科学 2007-12-19 Jerome Galtier

In this paper, we consider the Medium Access Control (MAC) protocol design for full-duplex cognitive radio networks (FDCRNs). Our design exploits the fact that full-duplex (FD) secondary users (SUs) can perform spectrum sensing and access…

信息论 · 计算机科学 2015-06-30 Le Thanh Tan , Long Bao Le

Wireless local area networks (WLAN) still suffer from a severe performance discrepancy between different users in the uplink. This is because of the spatially varying channel conditions provided by the wireless medium. Cooperative medium…

信息论 · 计算机科学 2009-11-04 Georg Böcherer