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Wyszukujesz frazę "IEEE 802.11n" wg kryterium: Wszystkie pola


Wyświetlanie 1-5 z 5
Tytuł:
FANET Drone’s 4K Data Applications, Mobility Models and Wi-Fi IEEE802.11n Standards
Autorzy:
QasMarrogy, Ghassan A.
Powiązania:
https://bibliotekanauki.pl/articles/1839466.pdf
Data publikacji:
2021
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
4K data transmission
FANET
mobility models
UAV
Opis:
With growing popularity of unmanned aerial vehicles (UAVs), the importance of flying ad-hoc networks (FANETs) is enhanced by such applications as 4K video recording, communications in search and rescue missions and goods deliveries, to name just a few. This, in turn, stimulates research on different topologies of networks existing between UAVs, with studies in this field being essential to improving performance of such networks. Several problems must be solved to effectively use UAVs in order to offer stable and reliable massive data transmission capabilities, taking into consideration quickly changing FANET topologies, types of routing, security issues, etc. In this paper, a comprehensive evaluation of FANETs used by UAVs is presented in terms of communication network challenges, data types, mobility models and standards applied in order to achieve best performance. The evaluation presented herein covers such areas as data throughput, retransmission attempts and delay.
Źródło:
Journal of Telecommunications and Information Technology; 2021, 1; 51-55
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
FANET Drone’s 4K Data Applications, Mobility Models and Wi-Fi IEEE802.11n Standards
Autorzy:
QasMarrogy, Ghassan A.
Powiązania:
https://bibliotekanauki.pl/articles/1839485.pdf
Data publikacji:
2021
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
4K data transmission
FANET
mobility models
UAV
Opis:
With growing popularity of unmanned aerial vehicles (UAVs), the importance of flying ad-hoc networks (FANETs) is enhanced by such applications as 4K video recording, communications in search and rescue missions and goods deliveries, to name just a few. This, in turn, stimulates research on different topologies of networks existing between UAVs, with studies in this field being essential to improving performance of such networks. Several problems must be solved to effectively use UAVs in order to offer stable and reliable massive data transmission capabilities, taking into consideration quickly changing FANET topologies, types of routing, security issues, etc. In this paper, a comprehensive evaluation of FANETs used by UAVs is presented in terms of communication network challenges, data types, mobility models and standards applied in order to achieve best performance. The evaluation presented herein covers such areas as data throughput, retransmission attempts and delay.
Źródło:
Journal of Telecommunications and Information Technology; 2021, 1; 51-55
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Measurements of QoS/QoE parameters for media streaming in a PMIPv6 testbed with 802.11 b/g/n WLANs
Autorzy:
Hoeft, M.
Gierlowski, K.
Gierszewski, T.
Konorski, J.
Nowicki, K.
Wozniak, J.
Powiązania:
https://bibliotekanauki.pl/articles/220593.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
media streaming
mobility
Proxy Mobile IPv6
IEEE 801.11
QoS/QoE
Opis:
The growing number of mobile devices and the increasing popularity of multimedia services result in a new challenge of providing mobility in access networks. The paper describes experimental research on media (audio and video) streaming in a mobile IEEE 802.11 b/g/n environment realizing network-based mobility. It is an approach to mobility that requires little or no modification of the mobile terminal. Assessment of relevant parameters has been conducted in an IPv6 testbed. During the tests, both Quality of Service (QoS) and Quality of Experience (QoE) parameters have been considered. Against the background of standard L3 and L2 handovers, an emerging mobility solution named Proxy Mobile IPv6 (PMIPv6) has been examined. Its advantages (L3 connectivity maintenance) and disadvantages (packet loss during handover) are emphasized based on the obtained results. Moreover, a new solution for handover optimization has been proposed. A handoff influence upon audio/video generation and transfer imperfections has been studied and found to be an interesting direction of future work.
Źródło:
Metrology and Measurement Systems; 2012, 19, 2; 283-294
0860-8229
Pojawia się w:
Metrology and Measurement Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modulo N Backoff Scheme for Effective QoS Differentiation and Increased Bandwidth Utilization in IEEE 802.11 Networks
Autorzy:
Janczar, T.
Konorski, J.
Wodniak, J.
Pawlikowski, K.
Powiązania:
https://bibliotekanauki.pl/articles/308888.pdf
Data publikacji:
2009
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
channel access
MAC
performance analysis
random backoff
WLAN
Opis:
The paper presents a new modulo N channel access scheme for wireless local area networks (WLANs). The novel solution derives from the distributed coordination function (DCF) of the IEEE 802.11 standard, further elaborated as enhanced distribution channel access (EDCA) by the 802.11e draft specification. The main innovation concerns improvement of the binary exponential backoff scheme used for collision avoidance in 802.11 networks. The most appealing feature of the new modulo N backoff scheme is that it outperforms the original 802.11 solution in terms of channel utilization ratio under any traffic conditions. Furthermore, the modulo N proposal can be naturally augmented with QoS differentiation mechanisms like 802.11e extensions. The prioritized modulo N scheme achieves better throughput-delay characteristics for multimedia traffic when compared with the original 802.11e proposal. At the same time, the new solution retains backward compatibility and includes all features which have made IEEE 802.11 networks extremely popular nowadays.
Źródło:
Journal of Telecommunications and Information Technology; 2009, 2; 41-47
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wireless Communication Solution for Distributed Structural Health Monitoring
Autorzy:
Andrzejczak, A.
Łęczycki, P.
Makowski, M.
Pękosławski, B.
Pietrzak, P.
Napieralski, A.
Powiązania:
https://bibliotekanauki.pl/articles/226561.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
wireless sensor networks
IEEE 802.15.4
Bluetooth Low Energy
DASH7
IEEE 802.11n
ZigBee
weightless
structural health monitoring
Opis:
This paper describes a design of wireless distributed SHM (Structure Health Monitoring) system with a particular emphasis on comparison of wireless communication standards. The presented solution is being deployed in the TULCOEMPA project. Several wireless communication standards are compared, with their benefits, disadvantages and typical areas of application. A choice of proper ISM (Industrial Scientific Medical) band and reasons for use of Wireless Sensor Networks are also discussed. The last part of this paper presents the proposed structure and designed prototype. The chosen architecture of the system and the program algorithm used for communication and measurements are described.
Źródło:
International Journal of Electronics and Telecommunications; 2013, 59, 2; 177-184
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-5 z 5

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