By Benny Bing
Provides a transparent, coherent assessment of all significant instant broadband criteria with an emphasis on dealing with the explosive progress in cellular video
802.11ac/ad, 802.16m, 802.22, and LTE-Advanced are the rising broadband instant criteria that supply many strong instant positive factors. This ebook supplies an available evaluation of some of the criteria and useful info on 802.11 hyperlink model, 4G cellphone antenna layout, instant video streaming, and clever grids.
Broadband instant Multimedia Networks distills the numerous advanced instant good points in a fresh and concise demeanour in order that the reader can comprehend the main rules. themes lined comprise adaptive modulation and coding, orthogonal frequency-division a number of entry, single-carrier frequency-division a number of entry, a number of antenna structures, medium entry keep watch over time and frequency-division duplex, transmission, and the body codecs. With instant operators now sporting a far higher volume of video site visitors than facts and voice site visitors, the ebook additionally covers adaptive bit cost streaming and bandwidth administration for 3D and HD video supply to multi-screen own devices.
Featured chapters within the ebook are:
- Overview of Broadband instant Networks
- IEEE 802.11 Standard
- IEEE 802.16 Standard
- Long-Term Evolution
- ATSC electronic television and IEEE 802.22 Standards
- Mesh, Relay, and Interworking Networks
- Wireless Video Streaming
- Green Communications in instant domestic region Networks
Including over one hundred eighty chapter-end workouts and 2 hundred illustrative figures; and available recorded tutorials, Broadband instant Multimedia Networks is perfect for execs and practitioners, graduate scholars, and researchers.
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Extra info for Broadband Wireless Access
There are two approaches to this issue. One approach insists that a user provide the network with a full statistical characterization of its traffic source, which is then policed by the network. Another approach recognizes the difficulty for a user to provide any information on traffic characteristics, but expects the network to cope nevertheless. Note that both approaches still derive the benefits of statistical multiplexing. They merely differ in how much characterization effort is required. A correct balance will necessarily involve tradeoffs between the user’s uncertainty about traffic characteristics and the network's ability to statistically multiplex connections in an efficient manner.
Finally, an important advantage of TDD over FDD is the ability to support asymmetric traffic loads since channel transmission time in TDD can be apportioned flexibly between the up and down links. Internet access is primarily asymmetric in nature. 9 MOBILITY AND HANDOFF Tracking a mobile user in a wireless environment creates additional complexity since it requires rules for handoff and roaming. In addition, one must also cope with rapid fluctuations in received signal power and traffic load patterns that changes with user location and time.
GSM). Forward handoff algorithms activate the handoff process via a channel with the target (alternate) base station without relying on the current base station. Although the handoff process is faster, this is achieved at the expense of a reduction in handoff reliability. , DECT). 4 Hard versus Soft Handoff Handoffs can also be hard or soft Hard handoffs release the radio link with the current base station at the same time when the new link with the target base station is established. , IS-54, PDC, GSM).