GSM - Architecture, Protocols and ServicesJohn Wiley & Sons, 2008 M12 23 - 344 páginas With around 3 billion subscribers, GSM is the world's most commonly used technology for wireless communication. Providing an overview of the innovations that have fuelled this phenomena, GSM: Architecture, Protocols and Services, Third Edition offers a clear introduction to the field of cellular systems. Special emphasis is placed on system architecture and protocol aspects, and topics range from addressing concepts through mobility management to network management. This third edition contains around 25% new and reworked material and has been thoroughly updated to encompass recent advances and future trends. It serves as both an introductory textbook for graduate students as well as a reference resource for telecommunications engineers and researchers. This edition:
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Dentro del libro
Resultados 1-5 de 53
Página 12
... sequences (Bertsekas and Gallager, 1987; Watson, 1993). This allows the time dispersion of the channel and its compensation to be determined. The performance of the equalizer has a significant effect on the quality of the digital ...
... sequences (Bertsekas and Gallager, 1987; Watson, 1993). This allows the time dispersion of the channel and its compensation to be determined. The performance of the equalizer has a significant effect on the quality of the digital ...
Página 15
... sequence of time slots assigned to a mobile station represents the physical channels of a TDMA system. In each time slot, the mobile station transmits a data burst. The period assigned to a time slot for a mobile station thus also ...
... sequence of time slots assigned to a mobile station represents the physical channels of a TDMA system. In each time slot, the mobile station transmits a data burst. The period assigned to a time slot for a mobile station thus also ...
Página 16
... sequences must be orthogonal, i.e. one must ascertain that two stations transmitting in the same time slot do not use the same frequency. Since the duration of a hopping period is long compared with the duration of a symbol, this ...
... sequences must be orthogonal, i.e. one must ascertain that two stations transmitting in the same time slot do not use the same frequency. Since the duration of a hopping period is long compared with the duration of a symbol, this ...
Página 17
... sequence CDMA A common spread-spectrum procedure is the direct sequence technique (Figure 2.9). Here, each bit of the original data sequence is multiplied directly – before modulation – with a spreading sequence or part of a spreading ...
... sequence CDMA A common spread-spectrum procedure is the direct sequence technique (Figure 2.9). Here, each bit of the original data sequence is multiplied directly – before modulation – with a spreading sequence or part of a spreading ...
Página 18
... sequences in order to retrieve the original user data sequence (Figure 2.10). Thus, if direct sequence spreading is used, the multiple access scheme is called Direct Sequence CDMA (DS-CDMA). Frequency hopping CDMA Another possibility ...
... sequences in order to retrieve the original user data sequence (Figure 2.10). Thus, if direct sequence spreading is used, the multiple access scheme is called Direct Sequence CDMA (DS-CDMA). Frequency hopping CDMA Another possibility ...
Contenido
1 | |
9 | |
3 System architecture and addressing | 43 |
4 Air interface physical layer | 57 |
5 Protocols | 121 |
6 Roaming and handover | 183 |
7 Services | 211 |
8 Improved data services in GSM GPRS HSCSD and EDGE | 233 |
9 Beyond GSM and UMTS 4G | 269 |
Appendices | 271 |
References | 313 |
Index | 317 |
Otras ediciones - Ver todas
GSM - Architecture, Protocols and Services Jörg Eberspächer,Hans-Joerg Vögel,Christian Bettstetter,Christian Hartmann Sin vista previa disponible - 2009 |
GSM - Architecture, Protocols and Services Jörg Eberspächer,Hans-Joerg Vögel,Christian Bettstetter,Christian Hartmann Sin vista previa disponible - 2008 |
GSM - Architecture, Protocols and Services Jörg Eberspächer,Hans-Joerg Vögel,Christian Bettstetter,Christian Hartmann Sin vista previa disponible - 2008 |
Términos y frases comunes
air interface algorithm allocation assigned authentication base station BCCH carrier bearer services bit error bit error ratio bit rate broadcast burst cell channel coding ciphering codec codeword configuration connection Control Channel convolutional code data rate data services defined downlink encoder encryption FACCH Figure fixed network frequency hopping functions GGSN GMSC GPRS GSM network GSM systems handover HSCSD IMSI interleaving blocks ISDN kbit/s LAPDm Layer location update logical channels mobile network mobile station mobile subscriber mode modulation MSC-B MSISDN MSRN multiframe multiple access network operator nontransparent parameters PDP context physical channels PLMN procedure RACH radio channel received request routing SACCH SDCCH sequence setup SFIR outage SGSN short messages signaling channels slots speech subscriber identity switching synchronization Table TDMA TDMA frames terminal TMSI traffic channel transmission transmitted transparent uplink user data wireless