Pregled bibliografske jedinice broj: 307304
Downstream Bit Rate Calculation for ADSL2+ Loops Limited with Far-end Crosstalk
Downstream Bit Rate Calculation for ADSL2+ Loops Limited with Far-end Crosstalk // Proceedings of SoftCOM 2007 / Rožić, Nikola (ur.).
Split: Fakultet elektrotehnike, strojarstva i brodogradnje Sveučilišta u Splitu, 2007. str. 1-6 (predavanje, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)
CROSBI ID: 307304 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Downstream Bit Rate Calculation for ADSL2+ Loops Limited with Far-end Crosstalk
Autori
Mikac, Vedran ; Bažant, Alen ; Ilić, Željko
Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni
Izvornik
Proceedings of SoftCOM 2007
/ Rožić, Nikola - Split : Fakultet elektrotehnike, strojarstva i brodogradnje Sveučilišta u Splitu, 2007, 1-6
ISBN
953-6114-95-X
Skup
2007 International Conference on Software, Telecommunications and Computer Networks
Mjesto i datum
Dubrovnik, Hrvatska; Split, Hrvatska, 27.10.2007. - 29.10.2007
Vrsta sudjelovanja
Predavanje
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
Crosstalk; ADSL; Bit rate; Local loop
Sažetak
In this paper an efficient method for downstream bit rate calculation on ADSL2+ local loops limited by crosstalk is presented. Crosstalk is one of the most limiting factors in broadband cable communications. In order to calculate bit rate of ADSL2+ loops we have done an in-depth analysis of a local telecom operator's cable infrastructure in terms of crosstalk. On the basis of measurements carried out on twisted quad cables in a frequency range up to 2.2 MHz, we have derived theoretical models of far-end crosstalk (FEXT) and insertion gain. The measurements were performed on cables that are part of an operating infrastructure, not on cables on a reel, thus providing a true insight into the situation telecoms worldwide are facing today. The results indicate that number and assignment of ADSL2+ to loops in a cable binder have a great impact on a bit rate. Strategy of allocating ADSL2+ to loops inside the cable binder reduces level of interference between users, allowing, in this case, traffic prediction and dynamic access to spectrum available in a cable. Presented bit rate calculation method and crosstalk models are crucial foundation for spectrum management used in a process of local loop unbundling, which is lawful obligation of numerous incumbent telecom operators.
Izvorni jezik
Engleski
Znanstvena područja
Elektrotehnika
POVEZANOST RADA
Projekti:
036-0362027-1641 - Analiza performansi i oblikovanje širokopojasnih mreža (Bažant, Alen, MZO ) ( CroRIS)
Ustanove:
Fakultet elektrotehnike i računarstva, Zagreb
