149 Hits in 5.8 sec

Time Slotted Channel Hopping for smart metering: Measurements and analysis of medium access

Mikhail Vilgelm, Murat Gursu, Samuele Zoppi, Wolfgang Kellerer
2016 2016 IEEE International Conference on Smart Grid Communications (SmartGridComm)  
Secondly, we compare the network performance for two medium access schemes: contention-based and contention-free.  ...  First goal of the evaluation is to assess the perspectives of TSCH, as a more reliable version of IEEE 802.15.4, for meter reading applications in a Smart Grid.  ...  Recent work aims at evaluating performance aspects of 802.15.4e, however, mostly focusing on simulations of single hop scenarios.  ... 
doi:10.1109/smartgridcomm.2016.7778747 dblp:conf/smartgridcomm/VilgelmGZK16 fatcat:ho3fw25asfdzhla7oxhgqvnu6a

Network-Level Simulation Results of Fair Channel-Dependent Scheduling in Enhanced UMTS [chapter]

Irene de Bruin
2004 Lecture Notes in Computer Science  
In this paper, previously performed UMTS studies have been extended to enhanced UMTS, and combined with several scheduling algorithms (ref. [1, 2] ).  ...  The network-level simulation results indeed display that the advantages of both extremes in scheduling algorithms have been combined in the new algorithm: a good fairness, comparable to that of Round-Robin  ...  The simulator focuses on MAC (Medium Access Control) and RLC (Radio Link Control), where versions of these protocols are implemented for HSDPA according to the 3GPP standard (release 5).  ... 
doi:10.1007/978-3-540-30199-8_25 fatcat:dmuxhsoyk5ajxiv6lvjfne75fa

Design of OSGi Compatible Middleware Components for Mobile Multimedia Applications [chapter]

Heinz-Josef Eikerling, Frank Berger
2002 Lecture Notes in Computer Science  
on demand.  ...  We describe the service interfaces and validate our findings by showing the OSGi compliant implementation of a follow-me display based on this architecture.  ...  For this, the performance of the servlet engine has a crucial impact on the overall system. Apparently, performance has not been the major directive when implementing OSGi framework products.  ... 
doi:10.1007/3-540-36166-9_8 fatcat:rhpoee2obbgprppuxdoq3q66ju

Practical Attacks on NFC Enabled Cell Phones

Roel Verdult, Francois Kooman
2011 2011 Third International Workshop on Near Field Communication  
To do so, two phones should be within the proximity coupling distance of 5 cm.  ...  This paper shows the NFC feature that invokes a Bluetooth connection without user consent can be abused to surreptitiously install malicious software on an NFC phone.  ...  For smaller objects, the transfer finishes by merely a touch of one second, this has considerably less influence on the usability.  ... 
doi:10.1109/nfc.2011.16 fatcat:jyiw6koug5ag3izwxf7diowxxa

D3.1 Communication of IoT Devices

Efstathios Katranaras, Guillaume Vivier, Ignacio Garcia Zuazola, Jaime Ruiz Alonso, Ignacio Benito Frontelo, Ahmad Nimr, Roberto Bomfin, Ivo Bizon Franco de Almeida, Albert Marín-Bernad, David Gomez-Barquero, Cristina Avellan, José Luis Cárcel Cerver (+8 others)
2021 Zenodo  
In particular, this deliverable has the objective of capturing the state of the art (SoA) technologies, from the device standpoint, supporting IoT and the planned innovations of iNGENIOUS in this regard  ...  , which are also mapped to the use cases of iNGENIOUS.  ...  Release-16 work focused on adapting NR to support NTN and further work is being performed in Release-17 to specify the NR features for NTN as well as to study the feasibility of ensuring NTN connectivity  ... 
doi:10.5281/zenodo.4890976 fatcat:cqxyf76dtvgbhl4rh774pwubnq

Low-Power Wireless for the Internet of Things: Standards and Applications

Ali Nikoukar, Saleem Raza, Angelina Poole, Mesut Gunes, Behnam Dezfouli
2018 IEEE Access  
We primarily focus on the Physical (PHY) and Medium Access Control (MAC) layers because they directly impact several performance metrics, such as reliability, latency, scalability, and energy consumption  ...  Second, timeliness or low latency are requirements that guarantee the bounded and deterministic delay of data transfer between different objects so that actions are performed on time.  ...  Our survey focused on the PHY and MAC layers because they directly influence the aforementioned constraints.  ... 
doi:10.1109/access.2018.2879189 fatcat:okr3pjazo5gu7i5fdh5eo4jzdy

Priority-based Initial Access for URLLC Traffic in Massive IoT Networks: Schemes and Performance Analysis

Thilina N. Weerasinghe, Indika A.M. Balapuwaduge, Frank Y. Li
2020 Computer Networks  
Furthermore, we evaluate the performance of the proposed schemes through mathematical analysis as well as simulations and compare the results with the performance of both the legacy LTE-A based initial  ...  These schemes are able not only to increase the reliability and minimize the delay of URLLC devices but also to improve the performance of all involved mIoT devices.  ...  Acknowledgement This work was supported by the Research Council of Norway through the Center for Research-Based Innovation (SFI) Offshore Mechatronics under Project 237896.  ... 
doi:10.1016/j.comnet.2020.107360 fatcat:rd2a456lqva73guar5ndrg7uqe

Mobility: A Double-Edged Sword for HSPA Networks: A Large-Scale Test on Hong Kong Mobile HSPA Networks

Fung Po Tso, Jin Teng, Weijia Jia, Dong Xuan
2012 IEEE Transactions on Parallel and Distributed Systems  
To the best of our knowledge, this is the first public report on a large scale empirical study on the performance of commercial mobile HSPA networks.  ...  This paper presents an empirical study on the performance of mobile High Speed Packet Access (a 3.5G cellular standard usually abbreviated as HSPA) networks in Hong Kong via extensive field tests.  ...  Liu [17] presents an experimental characterization of the physical and MAC layers in CDMA 1xEV-DO and their impact on transport layer performance.  ... 
doi:10.1109/tpds.2011.289 fatcat:3fktslic35f3ti6bhglftpyubq


Fung Po Tso, Jin Teng, Weijia Jia, Dong Xuan
2010 Proceedings of the eleventh ACM international symposium on Mobile ad hoc networking and computing - MobiHoc '10  
To the best of our knowledge, this is the first public report on a large scale empirical study on the performance of commercial mobile HSPA networks.  ...  This paper presents an empirical study on the performance of mobile High Speed Packet Access (a 3.5G cellular standard usually abbreviated as HSPA) networks in Hong Kong via extensive field tests.  ...  Liu [17] presents an experimental characterization of the physical and MAC layers in CDMA 1xEV-DO and their impact on transport layer performance.  ... 
doi:10.1145/1860093.1860105 dblp:conf/mobihoc/TsoTJX10 fatcat:duag2si5o5f3fi6jsa5oizdcri

Aalborg Universitet Packet Scheduling and Quality of Service in HSDPA Packet Scheduling And Quality of Service in HSDPA

Pablo Gutiérrez, Ameigeiras, Pablo Ameigeiras Gutiérrez
2003 unpublished
The HSDPA concept appears as an umbrella of features to improve both user and system performance.  ...  Furthermore, the performance of streaming services over HSDPA has been investigated for Constant Bit Rate flows.  ...  The MAC-hs design must be able to integrate the scheduling strategies for non-delay sensitive (described in Chapter 5) and for delay sensitive (described in Chapter 7) in a single algorithm that should  ... 

Radio resource management across multiple protocol layers in satellite networks: a tutorial overview

Paolo Barsocchi, Nedo Celandroni, Franco Davoli, Erina Ferro, Giovanni Giambene, Francisco Javier González Castaño, Alberto Gotta, Jose Ignacio Moreno, Petia Todorova
2005 International Journal of Satellite Communications And Networking  
Our work does not focus on TCP over satellites, but we certainly cannot avoid mentioning it, since it has a great influence on the MAC layer, which runs the algorithms for the bandwidth resource allocation  ...  Most of those algorithms implement some optimisation of the bandwidth allocation, which influences the TCP goodput.  ...  MAC protocols play a fundamental role in guaranteeing good performance to higher-level protocols, by managing the arbitration of uplink access.  ... 
doi:10.1002/sat.820 fatcat:lqvugiz2qraoxmt6afiozk7gr4

Literature Survey On Clustering Techniques

B.G.Obula Reddy
2012 IOSR Journal of Computer Engineering  
Clustering is the assignment of data objects (records) into groups (called clusters) so that data objects from the same cluster are more similar to each other than objects from different clusters.  ...  Rupali Mankar and Ms.Amruta Faude who have also contributed a great deal for the initial completion of the work.  ...  This work was carried out in and supported by the National Institute of Electronics and Information Technology, Aurangabad.  ... 
doi:10.9790/0661-0310112 fatcat:cflw4gkk6fgqxf6xoyztofhqfa

Neutrophil function disorders

Laurence A. Boxer, Melvin Lee Morganroth
1987 Disease-a-month  
The B-y subunit released from G,; interacts with the G,-a subunit forming the timeric, inactive form of G, and preventing the activation of the catalyst by G,:a.  ...  Exposure of neutrophils to degran- ulating stimuli results in a fivefold to tenfold increase in the number of Mac-1 molecules on the surface of the cell.  ... 
doi:10.1016/0011-5029(87)90012-5 pmid:3319464 fatcat:uysfp4zm2rex7h22zbfo7tacfq

Ultra-Low Latency (ULL) Networks: The IEEE TSN and IETF DetNet Standards and Related 5G ULL Research

Ahmed Nasrallah, Akhilesh S. Thyagaturu, Ziyad Alharbi, Cuixiang Wang, Xing Shao, Martin Reisslein, Hesham ElBakoury
2019 IEEE Communications Surveys and Tutorials  
However, traditional packet networks can only reduce the end-to-end latencies to the order of tens of milliseconds.  ...  We survey the studies that specifically target the support of ULL in 5G networks, with the main categories of fronthaul, backhaul, and network management.  ...  The deregistration process is simultaneously performed throughout the network based on the synchronized timers.  ... 
doi:10.1109/comst.2018.2869350 fatcat:kvymef5mbvfarfw3jnct5uj5ma

Energy Efficient and Fault Tolerant Multicore Wireless Sensor Network: E²MWSN

Hong-Ling Shi, Kun Mean Hou, Hai-Ying Zhou, Xing Liu
2011 2011 7th International Conference on Wireless Communications, Networking and Mobile Computing  
Lee & Choi, 2008) of WSN network. They are implemented on MAC Layer (W. L.  ...  Sensor on Timer Port.  ...   Based on FSMOS, an application can be ported through different platforms without modification. FSMOS High-level Architecture The high-level architecture of FSMOS is presented on the Figure 7-6.  ... 
doi:10.1109/wicom.2011.6040317 fatcat:b6qehpnmxjd35go7ycy5v5ru5y
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