Handoff techniques in IEEE 802.11 wireless networks

• Autorzy: Ahmad M.H.A.

Warianty tytułu

PL

Techniki przełączania w bezprzewodowych sieciach 802.11

• Języki publikacji: EN

Abstrakty

EN

IEEE 802.11 based wireless networks (WLAN) have been witnessing a rapid growth and wide deployment in the last decade. Mobility support in such networks is an essential issue. Hence, assurance of seamless handoff is one of the major problems in mobile networks, especially, for real-time streaming applications like Voice-over IP (VoIP). Handoff or handover is a mechanism that aims to enable a mobile user (MS - Mobile Station) to smoothly move between APs' (Access Pints) covering areas. Many handoff techniques have been proposed in the literature. A survey with a brief description of most important handoff proposals is presented in this paper. In addition, these techniques are theoretically evaluated and compared.

PL

W ostatniej dekadzie bezprzewodowe sieci lokalne operujące w standardzie IEEE 802.11 uległy szybkiemu roz-wojowi i znalazły wiele zastosowań. Wspomaganie mobilności w takich sieciach jest bardzo ważnym elementem. Stąd, zapewnienie bezprzerwowego przełączania jest jednym z największych problemów w tych sieciach, zwłaszcza w przypadku strumienia czasu rzeczywistego jak VoIP. Przełączanie jest to mechanizm, którego celem jest umożliwienie użytkownikowi ruchomemu (lub stacji ruchomej - MS) ruchu pomiędzy obszarami punktów dostępu (AP) nie powodując przerwy w połączeniu. Wiele technik przełączania jest proponowane w literaturze. W tym referacie dokonano przeglądu i skrótowo omówiono najważniejsze z nich. Dodatkowo techniki te są analizowane teoretycznie i porównane.

Słowa kluczowe

EN

wireless networks (WLAN); handoff techniques; real-time streaming applications (VoIP); MS -Mobile Station; AP's (Acces Pints); evaluation and comparison

PL

techniki przełączania; sieci bezprzewodowe 802.11; strumień czasu rzeczywistego VIP; stacja ruchoma MS; punkty dostępu AP

• Wydawca: Wydział Elektroniki, Telekomunikacji i Informatyki Politechniki Gdańskiej
• Czasopismo: Zeszyty Naukowe Wydziału ETI Politechniki Gdańskiej. Technologie Informacyjne
• Rocznik: 2007
• Tom: T. 14
• Strony: 809--818
• Opis fizyczny: Bibliogr. 26 poz., tab.

Twórcy

autor

Ahmad M.H.A.

• IT Department, Faculty of Engineering and IT, Taizz University, Yemen

Bibliografia

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