An expandable time-division circuit switching LSI and network architecture for broadband ISDN

1996 ◽  
Vol 14 (2) ◽  
pp. 328-336
Author(s):  
S. Kikuchi ◽  
N. Yamanaka
Keyword(s):  
Network Architecture ◽  
Circuit Switching ◽  
Broadband Isdn ◽  
Time Division

Optical subscriber network architecture for broadband ISDN

2003 ◽  
Author(s):  
T. Fukui ◽  
N. Fujimoto ◽  
T. Ishihara ◽  
T. Soejima ◽  
T. Watanabe ◽  
...  
Keyword(s):  
Network Architecture ◽  
Broadband Isdn

scholarly journals Integrating UMTS and mobile ad hoc networks

2021 ◽  
Author(s):  
Meng-chieh Wu
Keyword(s):  
Network Architecture ◽  
High Speed ◽  
Service Management ◽  
Ad Hoc ◽  
Mobile Ad Hoc Network ◽  
Mobile Ip ◽  
Area Coverage ◽  
Wide Area ◽  
Circuit Switching ◽  
Mobile Ad Hoc

Although cellular networks such as GPRS (2.5G) or UMTS (3G) have achieved providing both circuit-switching and packet-switching services with wide area coverage, the mobile users are still expecting higher rates and more mobility to satisfy their needs. Integrating current network architecture with other high-speed and low-cost wireless technologies is a key challenge for migrating to 4G. The IEEE 802.11 technology which has been well-developed and widely-used in local area networks seems to be a proper choice for fulfilling users' expectations. Its ad hoc functionality further improves the mobility of the users. This research proposes an architecture to achieve the internetworking between 802.11 Mobile Ad Hoc Network (MANET) and UMTS. The key approach being applied for intersystem handovers is SGSN signaling and for ad hoc mobility management is the Mobile IP signaling. The main purpose of this research is to retrieve the best effects by integrating these two network technologies. The integration system results several important features: wide area coverage, mobility and quality of service management.

scholarly journals Integrating UMTS and mobile ad hoc networks

2021 ◽  
Author(s):  
Meng-chieh Wu
Keyword(s):  
Network Architecture ◽  
High Speed ◽  
Service Management ◽  
Ad Hoc ◽  
Mobile Ad Hoc Network ◽  
Mobile Ip ◽  
Area Coverage ◽  
Wide Area ◽  
Circuit Switching ◽  
Mobile Ad Hoc

Although cellular networks such as GPRS (2.5G) or UMTS (3G) have achieved providing both circuit-switching and packet-switching services with wide area coverage, the mobile users are still expecting higher rates and more mobility to satisfy their needs. Integrating current network architecture with other high-speed and low-cost wireless technologies is a key challenge for migrating to 4G. The IEEE 802.11 technology which has been well-developed and widely-used in local area networks seems to be a proper choice for fulfilling users' expectations. Its ad hoc functionality further improves the mobility of the users. This research proposes an architecture to achieve the internetworking between 802.11 Mobile Ad Hoc Network (MANET) and UMTS. The key approach being applied for intersystem handovers is SGSN signaling and for ad hoc mobility management is the Mobile IP signaling. The main purpose of this research is to retrieve the best effects by integrating these two network technologies. The integration system results several important features: wide area coverage, mobility and quality of service management.

scholarly journals Transmission of Q-signaling by the tunneling procedure in the automatic telephone network of integrated services of the Serbian Armed Forces

2022 ◽  
Vol 70 (1) ◽  
pp. 169-206
Author(s):  
Slađan Svrzić ◽  
Julijan Bojanov
Keyword(s):  
Telecommunication Network ◽  
Armed Forces ◽  
Integrated Services ◽  
Telephone Network ◽  
Circuit Switching ◽  
Core Network ◽  
Digital Network ◽  
Ip Network ◽  
Audio Information ◽  
Time Division

Introduction/purpose: To specify the practical application of ECMA355 and ECMA-336 Standards for Q-SIG tunneling and the implementation of mapping functions via the existing IP (Internet Protocol) network of the Serbian Armed Forces (Intranet SAF), in the Private Automatic Telephone Network SAF (PATN SAF), as the main part of the Private telecommunication-information networks of integrated services SAF (PISN SAF). Methods: Description of the implemented solution and analysis of the software parameters of the established transmission SIP route, with the display of the results obtained in the fight with jitter and echo in the network. Results: With such a solution, it was achieved that participants from the peripheral parts of the PISN SAF, which operate on the principle of transmission and circuit switching by TDM (Time Division Multiplexing), can connect with each other via the newly established central IP network SAF (Core network) which operates on the principle of transmission and switching packets with the SIP (Session Initiation Protocol), without losing the functionality of QSIG from the framework of the digital telecommunication network of integrated services ISDN (Integrated Services Digital Network). Conclusion: The article deals with the modern IP PINX (Private Integrated Services Network Exchange) manufactured by Mitel, type MX-ONE Service Node 6.0, which is implemented at the transit level PATN SAF and which successfully implements the process of tunneling Q-SIG through the IP network and the necessary functions for mapping the transmission of tunneled QSIG messages and mapping voice (and other audio) information to VoIP (Voice over IP) communication media streams through that network. Also, the basic elements for its software preparation during the introduction of a new SIP route, with a capacity of 30 IP trunks in a transmission beam realized with 100 Mb/s-T Ethernet, are given, and the fight with the present jitter and echo in the network is described. Finally, the paper presents the experience-based values of the parameters for reducing the influence of jitter and suppressing echo.

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