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 information, moment Edition offers execs with a one-stop connection with every little thing they should layout, enforce, function, safe, and troubleshoot instant networks.
Written through a bunch of overseas specialists, the booklet deals an unrivaled breadth of assurance and a special specialise in real-world engineering matters. The authors draw upon vast adventure in all parts of the expertise to discover themes with confirmed useful purposes, highlighting rising parts equivalent to long-term Evolution (LTE) in instant networks. the recent version is carefully revised for readability, studies instant engineering basics, and contours a number of references for extra research.
Based at the parts of workmanship lined within the IEEE instant verbal exchange Engineering applied sciences (WCET) examination, this e-book explains:
- Wireless entry applied sciences, together with the newest in cellular mobile technology
- Core community and repair structure, together with vital protocols and solutions
- Network administration and safeguard, from operations technique versions to key safeguard 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 relied on reference at their part, instant practitioners gets on top of things on advances and most sensible practices within the box and procure the typical technical language and instruments wanted for operating in several components 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, rules, and rules (pages 247–264):
Chapter 7 basic wisdom (pages 265–282):
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Extra info for A Guide to the Wireless Engineering Body of Knowledge (WEBOK), Second Edition
This closed loop corrects for any variation required in the open loop estimate to accommodate gain tolerances and unequal propagation losses between the forward and reverse links. In the case of cdma2000-lx, closed loop power control operates at 800 Hz on both the forward and reverse links. In Wideband CDMA (W-CDMA), this mechanism operates at 1500 Hz. The reverse link outer loop power control serves to maintain communications quality by setting the target for the closed loop by periodically adjusting a signal-to-interference (SIR) target or setpoint based on the frame error rate (FER).
Layer 1 and Layer 2 are handled by the BTS, the RR sub-layer is handled by the BSC and the MM and CC-sub-layers are handled by the MSC. Figure 1-22: Basic Cellular (GSM) Network Architecture There exist in fact slight exceptions to these general rules but this mapping essentially means: • The BTS handles the radio transmission. • The BSC organizes the allocation, release, and supervision of the radio channels, these actions being performed according to commands received from the MSC. • The MSC handles the call establishment and call release, the mobility functions, and every aspect related to the subscriber's identity.
6 kb/s in the downlink. GPRS architecture GPRS was designed to allow network operators to reuse the radio coverage deployed for voice. In addition, it was necessary to define two new functional entities on the core network side: Wireless Access Technologies 35 • The Serving GPRS Support Node (SGSN) is the node that controls the BSC serving the MS. It handles mobility, paging, security features, and interface with the BSC. • The Gateway GPRS Support Node (GGSN) works with the packet data networks (fixed and mobile).
A Guide to the Wireless Engineering Body of Knowledge (WEBOK), Second Edition by Andrzej Jajszczyk