09-08-2012, 10:17 AM
Mobile WiMAX and Its Evolution Towards IMT-Advanced System
[attachment=30682]
INTRODUCTION
Internet has changed the ways people communicate
and also their lifestyles. As people want Internet-based
service anywhere anytime including while on-the-go, there
has been a need to make new communication technologies
optimized for data delivery in a wireless and mobile
fashion while the existing cellular communication
technologies such as cdma2000 and WCDMA were
developed mainly for voice communications. Mobile
WiMAX is one of the emerging technologies that promote
low-cost deployment and service models as well as
Internet friendly architectures and protocols.
This paper briefly overviews the current version of
mobile WiMAX, mobile WiMAX Release 1.0, which is
based on IEEE 802.16e-2005, and the slightly upgraded
version, mobile WiMAX Release 1.5, which is based on
IEEE 802.16-2009.1) Then, this paper explains the key
features of IEEE 802.16m which will be the base standard
for the next version of mobile WiMAX.
IEEE 802.16m FOR
IMT-ADVANCED
International Mobile Telecommunications-Advanced
(IMT-Advanced) systems are mobile systems that include
the new capabilities of IMT that go beyond those of IMT-
2000. Such systems provide access to a wide range of
telecommunication services including advanced mobile
services, supported by mobile and fixed networks, which
are increasingly packet-based [14]. ITU-R has commenced
the process of developing ITU-R Recommendations for
the terrestrial components of the IMT-Advanced radio
interface(s), and the Figure 4 shows the schedule for the
development of IMT-Advanced radio interface
Recommendations [15].
IEEE already expressed its intention to submit
candidate IMT-Advanced radio interface technology (RIT)
based on IEEE project 802.16m, and the work plan for
IEEE 802.16m standard is on track for IMT-Advanced
submission which is October 2009 [19].
There are following 4 key documents in IEEE project
802.16m which are correspondent to Stage 1, 2, and 3
procedures in the standardizations.
CONCLUSIONS
We overviewed mobile WiMAX technologies from
the current version, IEEE 802.16e-2005, to the next
version, IEEE 802.16m, focusing on PHY/MAC features.
OFDMA and MIMO are considered as the key enablers of
future wireless broadband communications where many
people can enjoy Internet-based service and others
anywhere anytime. Mobile WiMAX is the first cellular
communication technology with OFDMA and MIMO
which is widely deployed around the world as of today.
With its clear roadmap with many advanced features for
the performance enhancements, mobile WiMAX is
considered as one of the strong candidates for future
wireless broadband communication systems such as IMTAdvanced
defined in ITU-R.
[attachment=30682]
INTRODUCTION
Internet has changed the ways people communicate
and also their lifestyles. As people want Internet-based
service anywhere anytime including while on-the-go, there
has been a need to make new communication technologies
optimized for data delivery in a wireless and mobile
fashion while the existing cellular communication
technologies such as cdma2000 and WCDMA were
developed mainly for voice communications. Mobile
WiMAX is one of the emerging technologies that promote
low-cost deployment and service models as well as
Internet friendly architectures and protocols.
This paper briefly overviews the current version of
mobile WiMAX, mobile WiMAX Release 1.0, which is
based on IEEE 802.16e-2005, and the slightly upgraded
version, mobile WiMAX Release 1.5, which is based on
IEEE 802.16-2009.1) Then, this paper explains the key
features of IEEE 802.16m which will be the base standard
for the next version of mobile WiMAX.
IEEE 802.16m FOR
IMT-ADVANCED
International Mobile Telecommunications-Advanced
(IMT-Advanced) systems are mobile systems that include
the new capabilities of IMT that go beyond those of IMT-
2000. Such systems provide access to a wide range of
telecommunication services including advanced mobile
services, supported by mobile and fixed networks, which
are increasingly packet-based [14]. ITU-R has commenced
the process of developing ITU-R Recommendations for
the terrestrial components of the IMT-Advanced radio
interface(s), and the Figure 4 shows the schedule for the
development of IMT-Advanced radio interface
Recommendations [15].
IEEE already expressed its intention to submit
candidate IMT-Advanced radio interface technology (RIT)
based on IEEE project 802.16m, and the work plan for
IEEE 802.16m standard is on track for IMT-Advanced
submission which is October 2009 [19].
There are following 4 key documents in IEEE project
802.16m which are correspondent to Stage 1, 2, and 3
procedures in the standardizations.
CONCLUSIONS
We overviewed mobile WiMAX technologies from
the current version, IEEE 802.16e-2005, to the next
version, IEEE 802.16m, focusing on PHY/MAC features.
OFDMA and MIMO are considered as the key enablers of
future wireless broadband communications where many
people can enjoy Internet-based service and others
anywhere anytime. Mobile WiMAX is the first cellular
communication technology with OFDMA and MIMO
which is widely deployed around the world as of today.
With its clear roadmap with many advanced features for
the performance enhancements, mobile WiMAX is
considered as one of the strong candidates for future
wireless broadband communication systems such as IMTAdvanced
defined in ITU-R.