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Lansbergen, D.A. (author)
Nowadays, many infrastructures have to suffer from congestion problems due to a lack of capacity. The road infrastructure is a good example, but current telecommunications networks like the internet have to face the same problem. Quality of Service (QoS) is a concept in the internet, which has become more significant the last couple of years....
master thesis 2002
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Libier, R.M. (author)
Met de PDP11-20 is een packetswitching-centrale ontworpen waarop twee soorten randapparaten aangesloten kunnen worden te weten telexapparaten en Teletypes. Voor de koppeling van de terminals aan de computer is een "byte serial interface" gemaakt. De snelheden waarmee bovengenoemde apparaten werken zijn 50 respectievelijk 110 baud. De codes die...
master thesis 1997
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Van der Steeg, H. (author)
Sinds 1995 zijn er diverse Produkten die het mogelijk maken om via IP-netwerken te telefoneren. Door de standaardisatie van deze produkten, de ontwikkeling van gateways naar het PSTN en het toevoegen van multimedia-features, wordt Telefonie via IP een steeds geschikter alternatief voor traditionele telefonie via telefoonnetten. Voordelen van...
master thesis 1997
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Pham, N.T. (author)
Abstract: Virtual Circuit Reservation Multiple Access protocol (VCRMA) is a hybrid protocol for mixed voice/data radio transmissions. It uses circuit-switched mode for voice and Modified Minipacket Competition Multiple Access (M-MCMA) for data. The VCRMA protocol can be used in all three types of cells: pico-, micro- and macro-. The total...
master thesis 1997
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Cohen, N.W. (author)
The modified Circuit Reservation Multiple Access (CRMA) protocol is a new wireless communication protocol that has been proposed for the use in a cellular environment. CRMA is a hybrid Time Division Multiple Access (TDMA) / Slotted ALOHA protocol. The protocol controls the activity of the Time Division Duplexing (TDD) channel and it is able to...
master thesis 1997
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Hendrikse, G.A. (author)
The Circuit Reservation Multiple Access (CRMA) protocol is a new protocol that has been developed for wireless office communications. This hybrid Time Division Multiple Access (TDMA) / reservation ALOHA protocol is an effective multiple access scheme that integrates speech and data traffic. For the speech traffic, the allocated bandwidth is...
master thesis 1996
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Prasad, N.R. (author)
The performance of the Slotted ISMA protocols in Rician fading channel for Indoor Wireless communications considering Pico Cellular systems have been analyzed in this thesis. The throughput of Slotted nonpersistant Inhibit Sense Multiple Access (np-ISMA), Slotted 1-persistent ISMA (1p-ISMA) and Slotted np-ISMA\CD (Collision Detection) is...
master thesis 1996
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Snip, J.G. (author)
In part one of this report we focus on the question of what protocol layer is necessary between ATM and the application. Several ATM adaptation layers and transport protocols are compared. In part two, experiments have been done with XTP, a general promising protocol able to offer several services towards the application and able to run on top...
master thesis 1996
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Çakil, H.I. (author)
A novel hybrid TDMA/CDMA multiple access protocol is proposed that complies with the requirements for the future third-generation Universal Mobile Telecommunications System (UMTS). This protocol is capable of integrating a range of different types of services, like constant bitrate services (voice) and packet mode services. Its performance is...
master thesis 1996
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Nollen, A. (author)
The development of a third generation mobile communication network is in progress. A European project is working towards a European standard. The investigation of multiple access schemes is part of this project, as was development of the Multi Carrier TDMA/SFH Dual Signal Receiver protocol. A mobile communication system is designed based on this...
master thesis 1996
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Le, H.L.A. (author)
A hybrid Code Division Multiple Access / Inhibit Sense Multiple Access (CDMA/ISMA) protocol has been proposed as an effective multiple access scheme for Indoor Wireless Computer Communications. This new protocol combines the advantages of both CDMA and ISMA into one protocol. On the one hand the ISMA protocol introduces a limitation to the...
master thesis 1995
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Moretti, M. (author)
The Circuit Reservation Multiple Access (CRMA) protocol is a new protocol for wireless indoor communications. It integrates voice and data traffic on a Time Division Duplexed channel. As with Mthe well known Packet Reservation Multiple Access (PRMA) protocol, CRMA is a hybrid TDMA/Slotted ALOHA protocol. Speech packets follow a TDMA scheme and...
master thesis 1995
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Chan, K. (author)
The knowledge of mobile users’ traffic is a prerequisite for the proper implementation of the Universal Mobile Telecommunication System(UMTS). First we develop a mobile traffic model, which describes the distribution of the mobile subscribers over a city. From this distribution the offered amount of traffic is derived for each cell area at any...
master thesis 1994
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Soelaksono, A. (author)
This thesis describes the performance analysis of a star-connected, indoor wireless computer data communication system using direct-sequence code division multiple access (DS-CDMA) and Hybrid CDMA / Inhibit Sense Multiple Access (ISMA) protocol. The channel performance is investigated in terms of bit error rate (BER) and the protocol performance...
master thesis 1994
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Lisman, H.A. (author)
The ISDN (Integrated Services Digital Network) is becoming increasingly important for both data and non-data communications. For the evaluation of ISDN functionality and services in the area of ESA's communications requirements the ESA Computer and Network operations Department has built an ISDN testbed at ESTEC. This report describes results of...
master thesis 1994
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Roeleveld, B.M.A. (author)
Binnen niet al te lange tijd zullen er van twee exploitanten een mobiel telecommunicatienet (GSM-net) op de markt verschijnen. Hun netten moeten samenwerken met het vaste telefoonnet van PTT. De technische en organisatorische aspecten die een rol spelen bij deze samenwerking worden stuk voor stuk besproken in dit verslag.
master thesis 1993
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Dewantara, I.S. (author)
In third generation mobile telecommunications systems high traffic densities are envisaged, demanding a large capacity and an efficient network. The Base Station System (BSS) is the interface between the Mobile Terminal and the Fixed Network. The BSS is required to handle the signalling and traffic load to meet the demand. In this report...
master thesis 1993
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van Vliet, E.J.M. (author)
In this report the new Circuit Reservation Multiple Access protocol for wireless office communications is presented. This slotted protocol controls the transport of data between a central base station and users with divergent service requirements over a half duplex radio link. An analytical and a simulation model are presented and the results of...
master thesis 1993
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van Vliet, E.J.M. (author)
This report discusses a detailed qualitative study of a Wireless Office Communication System. The system is built up of separate groups. Each group consists of a base station and two types of users, viz (i) one with constant bandwidth demand requirement and (ii) other with variable bandwidth demand requirement. A new proposed Circuit Reservation...
student report 1992
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Damoiseaux, D.T.A.H.M. (author)
After the introduction, a layered model of network service provision is presented. Architectures for value added service provision are described as well as different classes of computer which run the service applications. Then, a number of evaluation criteria and design constraints for value added networks are generated. Finally, combinations of...
master thesis 1992
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