By Andrzej Jajszczyk
The final reference on instant technology?now up-to-date and revised
Fully up-to-date to include the newest advancements and criteria within the box, A consultant to the instant Engineering physique of data, moment Edition offers execs with a one-stop connection with every little thing they should layout, enforce, function, safe, and troubleshoot instant networks.
Written by means of a gaggle of overseas specialists, the booklet bargains an unrivaled breadth of insurance and a distinct specialise in real-world engineering concerns. The authors draw upon wide adventure in all components of the know-how to discover themes with confirmed useful functions, highlighting rising parts equivalent to long-term Evolution (LTE) in instant networks. the recent variation is carefully revised for readability, experiences instant engineering basics, and lines a number of references for extra research.
Based at the components of craftsmanship lined within the IEEE instant verbal exchange Engineering applied sciences (WCET) examination, this booklet explains:
- Wireless entry applied sciences, together with the most recent in cellular mobile technology
- Core community and repair structure, together with very important protocols and solutions
- Network administration and safeguard, from operations approach versions to key safety issues
- Radio engineering and antennas, with specifics on radio frequency propagation and instant hyperlink design
- Facilities infrastructure, from lightning security to surveillance systems
With this depended on reference at their part, instant practitioners gets up to the mark on advances and top practices within the box and obtain the typical technical language and instruments wanted for operating in numerous elements of the world.Content:
Chapter 1 instant entry applied sciences (pages 1–74):
Chapter 2 community and repair structure (pages 75–134):
Chapter three community administration and safety (pages 135–172):
Chapter four Radio Engineering and Antennas (pages 173–217):
Chapter five amenities Infrastructure (pages 219–245):
Chapter 6 Agreements, criteria, regulations, and laws (pages 247–264):
Chapter 7 basic wisdom (pages 265–282):
Read or Download A Guide to the Wireless Engineering Body of Knowledge (WEBOK), Second Edition PDF
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Extra info for A Guide to the Wireless Engineering Body of Knowledge (WEBOK), Second Edition
The section starts with the widely implemented TDMA-based technologies of GSM. GPRS, (and briefly) EDGE, followed by UMTS Phase 1, and then High Speed Packet Access (HSPA) evolution. Long Term Evolution (LTE) is later discussed in some detail. Wireless Access Technologies 31 As also suggested in Figure 1-21 on the evolution of access technologies, the movement between different paths varies, based on needs and roadmaps. For example, operators with PDC or 3GPP2 technologies may have chosen to implement UMTS technologies, or a 3G operator may be in a position to choose any of the OFDMA-based technologies in its roadmap beyond 3G.
Figure 1-23: Evolved GSM Architecture (GPRS) EDGE EDGE (Enhanced Data Rates for GSM Evolution) uses more advanced modulation to increase the throughput at the radio interface. 2 kb/s. As in GPRS, a MS can be allocated more than one timeslot. EDGE time slots are used with the GPRS architecture to provide packet services with increased data throughput; this is known as EGPRS (Enhanced GPRS). Further advancements have been proposed to enhance EDGE capabilities (EDGE+). 3 UMTS Phase 1 UMTS (Universal Mobile Telecommunications System) was designed by a joint effort of the GSM community and other players as a Third Generation (3G) system, compatible with GSM to the extent possible and meeting the goals of IMT-2000 set by the ITU.
Radio interface A simplified and basic functionality of HSDPA is shown in Figure 1-25. , ratio of packet transmission acknowledgements and non-acknowledgements), and HSDPA-specific user feedback (CQI, Channel Quality Indicator). Scheduling and link adaptation are then conducted at a fast pace that depends on the scheduling algorithm and the user prioritization scheme. e. e. selection of transport format STEP 4: user data transmission STEP 5: ACK/NACK feedback Figure 1-25: Basic Functionality of HSDPA Access Wireless Access Technologies 39 HSDPA relies on a new downlink transport channel, the High Speed Downlink Shared Channel (HSDSCH).