Vision on Radio Resource Management (RRM) and Quality of Service (QoS) for Wireless Communication Systems in Year 2020

Autor: Ljupco Jorguseski
Rok vydání: 2010
Předmět:
Zdroj: Globalization of Mobile and Wireless Communications ISBN: 9789400701069
DOI: 10.1007/978-94-007-0107-6_9
Popis: The historical evolution of major wireless access systems in Europe (similarly world- wide) shows that there is a major introduction of wireless access technology in each decade (Fig. 9.1). In the 1990s we have witnessed worldwide introduction of 2G wireless systems dominated by the GSM standard and voice/SMS applications. In the beginning of the new millennium many operators have extended existing 2G system for supporting data applications (e.g. GPRS and EDGE) and next to that 3G wireless access systems were introduced such as UMTS (later enhanced with advanced packet-data features such as HSPA).
Databáze: OpenAIRE