tailieunhanh - Điện thoại di động mạng lưới Radio P12

Wireless Broadband Systems and Wireless ATM∗ Broadband systems are generally those systems that provide a high transmission rate besides other features like integration of services. An exact definition of this term can be found in ITU Rec. , which characterizes broadband services as having a higher transmission rate than a primary multiplex connection in ISDN (2048 kbit/s). A brief overview of the current state of development of wireless broadband systems, particularly in Europe, including the fundamentals of ATM in BISDN, is given below. This is followed by important aspects of development of wireless ATM for movable and mobile stations. . | Mobile Radio Networks Networking and Protocols. Bernhard H. Walke Copyright 1999 John Wiley Sons Ltd ISBNs 0-471-97595-8 Hardback 0-470-84193-1 Electronic 12 Wireless Broadband Systems and Wireless ATM Broadband systems are generally those systems that provide a high transmission rate besides other features like integration of services. An exact definition of this term can be found in ITU Rec. which characterizes broadband services as having a higher transmission rate than a primary multiplex connection in ISDN 2048 kbit s . A brief overview of the current state of development of wireless broadband systems particularly in Europe including the fundamentals of ATM in BISDN is given below. This is followed by important aspects of development of wireless ATM for movable and mobile stations. European Research in Broadband Systems The importance of wireless broadband systems is evident from the number of projects being carried out in this field . within the European research programme ACTS Advanced Communication Technologies and Services 2 ACTS MEDIAN Wireless LAN at 60 GHz transmission of ATM cells ACTS Cobucco Multimedia terminal ACTS FRANS High-bit-rate subscriber connections ACTS MagicWAND Indoor wireless ATM system at 5 GHz ACTS OnTheMove Mobile multimedia value-added services ACTS SAMBA Cellular ATM broadband system at 40 GHz ACTS CABSINET Cellular interactive multimedia communications system for metropolitan areas at 5 17 40 GHz ETSI RES 10 HIPERLAN 1 wireless LAN with 23 Mbit s at 5 GHz see Section With the collaboration of Andreas Hettich Arndt Kadelka Andreas Kram-ling Dietmar Petras 618 12 Wireless Broadband Systems and Wireless ATM ETSI BRAN Broadband wireless access networks that also support ATM ATM Forum TCP over ATM MPEG over ATM wireless ATM DAVIC LMDS Digital And Video Council Local Multipoint Distribution System ATMmobil Key development project of the Federal German Minister of Research and Technology development of wireless ATM .