|
|
|
|
|
Deploying License-Exempt WiMAX Solutions
|
|
Existing and potential wireless Internet service providers
(WISPs) and vertical markets such as government and
education are considering the benefits associated with
Worldwide Interoperability for Microwave Access (WiMAX),
specifically the flexibility and cost reduction benefits
associated with the license-exempt portion of WiMAX.
However, the popularity of WiMAX is causing concern among
some operators who fear that standardizing the licenseexempt
broadband wireless spectrum may lead to
overcrowding, while other operators hope to establish new
solutions that can accommodate the sharing of spectrum
and infrastructure locations.
This paper provides WISPs and vertical markets with
technical information related to deployment of a licenseexempt
WiMAX solution. It compares license-exempt and
licensed WiMAX solutions and highlights benefits such as
cost-effectiveness and deployment flexibility. License-exempt
challenges such as where to place infrastructure equipment
and how to minimize interference are also examined.
|
|
Added: 11th August 2006 10:30:49 AM Modified: 11th August 2006 10:30:49 AM Visited: 281 times Source: Intel
|
|
|
Understanding Wi-Fi and WiMAX as Metro-Access Solutions
|
|
This paper provides incumbent wireless Internet service providers (WISPs), new WISPs and
demanding new markets (such as government and education) with a technical analysis of
alternatives for implementing last-mile wireless broadband services.
|
|
Added: 11th August 2006 10:30:09 AM Modified: 11th August 2006 10:30:09 AM Visited: 336 times Source: Intel
|
|
|
Adaptive Modulation (QPSK, QAM)
|
|
Introduced below are the concepts of
digital modulation used in many
communication systems today.
Techniques described include
quadrature phase shift keying (QPSK)
and quadrature amplitude modulation
(QAM) and how these techniques can
be used to increase the capacity and
speed of a wireless network. These
modulation techniques are the basis of
communications for systems like cable
modems, DSL modems, CDMA, 3G,
Wi-Fi* (IEEE 802.11) and WiMAX*
(IEEE 802.16).
|
|
Added: 11th August 2006 10:29:29 AM Modified: 11th August 2006 10:29:29 AM Visited: 326 times Source: Intel
|
|
|
Orthogonal Frequency Division Multiplexing
|
|
Orthogonal frequency division
multiplexing (OFDM) is a multi-carrier
transmission technique that has been
recently recognized as an excellent
method for high speed bi-directional
wireless data communication. Its
history dates back to the 1960s, but it
has recently become popular because
economical integrated circuits that can
perform the high speed digital
operations necessary have become
available. OFDM effectively squeezes
multiple modulated carriers tightly
together, reducing the required
bandwidth but keeping the modulated
signals orthogonal so they do not
interfere with each other. Today, the
technology is used in such systems as
asymmetric digital subscriber line
(ADSL) as well as wireless systems
such as IEEE 802.11a/g (Wi-Fi*) and
IEEE 802.16 (WiMAX*). It is also used
for wireless digital audio and video
broadcasting.
|
|
Added: 11th August 2006 10:28:35 AM Modified: 11th August 2006 10:28:35 AM Visited: 330 times Source: Intel
|
|
|
OFDMA PHY SAP Interface Specification for 802.16 Broadband Wireless Access
|
|
The purpose of this specification is to define PHY SAP for 802.16 Base Stations MAC – OFDMA PHY
communication. In particular, it aims at:
• Clear separation of MAC- and PHY-level processing.
• Definition of low-latency data-plane level MAC-PHY communication for in-band control and
data transmission, supporting a number of concurrently serviced PHY entities.
• Enabling parallel design, implementation, and testing of the 802.16 MAC and the 802.16 PHY.
• Giving support for simulation of an 802.16 PHY to perform stand-alone 802.16 MAC
verification testing.
• Providing support of MAC-level interoperability testing (BS-SS) without PHY.
• Making possible seamless integration of an 802.16 MAC implementation with an 802.16 PHY
implementation.
• Providing definition of the assumptions and constraints for the MAC and PHY interface.
|
|
Added: 11th August 2006 10:27:38 AM Modified: 11th August 2006 10:27:38 AM Visited: 313 times Source: Intel
|
|
|
Intel® Centrino® Mobile Technology Reference Guide for WiMAX Networks
|
|
This start guide provides the Worldwide Interoperability for Microwave Access
(WiMAX) ecosystem with a unique look into Intel's vision and direction for the
integration of WiMAX solutions, based on the IEEE 802.16e-2005 standard
and WiMAX Forum* compliance, into Intel® Centrino® mobile technologyenabled
laptops.
|
|
Added: 11th August 2006 10:26:30 AM Modified: 11th August 2006 10:26:30 AM Visited: 279 times Source: Intel
|
|
|
|
Home