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Title: Cordless access to the basic rate service of ISDN using DECT technology
Author: Ip, W. H.
Awarding Body: University College of Swansea
Current Institution: Swansea University
Date of Award: 1995
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This thesis describes research that has been carried out by the author into the feasibility of providing a cordless (radio) access to the basic rate service of the integrated services digital network (ISDN). The radio technology investigated is based on that recently adopted as the pan-European cordless standard known as the Digital European Cordless Telecommunications (DECT) standard. Although in the standard it is envisaged that DECT will provide support for the basic service of ISDN, the actual interworking details between the two systems have still to be defined. This research, therefore, contributes to this aspect of the standard. The proposed scheme endeavours to merge the two systems together so as to provide transparent, cordless access to the basic rate service of ISDN. All aspects of the interworking approach have been fully researched and the operation of the interworking unit has been formulated in the form of a finite state machine. Most of the reported results for predicting the performance of a DECT radio link have been obtained using testbeds and relate to path loss, signal-to-noise ratio and fading characteristics. Although these parameters provide a good estimation of the performance of a link for voice services - in terms of bit error rate for example - in general, for the more stringent requirements of data services, the link performance of a channel, especially one of poor quality, dictates that an error correction scheme must be used. To date, however, the provision of data services over DECT has not yet been studied in detail. This research therefore also contributes to this aspect of the DECT standard. Two error correction schemes have been proposed and their performance under different channel conditions have been quantified. The results are based on error measurements obtained from a DECT testbed and computer simulation modelling has been used to investigate the performance of both schemes.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available