26-07-2010, 05:49 PM
Multimedia Streaming Technology n 4G Mobile
Communication Systems
The popularity of laptops, mobile phones and Personal Digital Assistants and and the evolution of fast mobile networks, it is today possible to provide high qualitymobile applications and services to the end-users. The 4G technology combines standardized streaming
with a range of unique services to provide high-quality multimedia content . By providing data-transmission rates up to 20 Mbps, the 4G communication systems can provide provide high quality
streamed content to the end users.
MOBILE STREAMING CHALLENGES
mobile streaming services face the following challenges.
Heterogeneity
The display sizes and capabilities of mobile phones varying very much, and also different radio-access networks making multiple maximum-access page link speeds available. This can be mitigated by
capability exchange mechanisms that can enable the terminal and media server to negotiate mobile terminal and mobile network capabilities and user preferences.
Content Protection
This involves controlling what users can do
with conten. In the simplest form , content protection can be to is simply disallow the storage of received contentdigital rights . It also involves the management (DRM) concept, which uses
encryption and conditional access based on
usage rules to protect multimedia data.
. To prevent illegal copying ofmultimedia content like music and movies, the content providers are reluctant to deliver premium content
over digital networks without DRM mechanisms.
Streaming standardisation
The Internet Streaming Media Alliance (ISMA) and the Wireless Multimedia Forum (WMF) have emphasised the need for standardisation of the streaming services. The multimedia
protocol stacks and codecs video and audio
compression/decompression software must be standard to all the end user equipments.
For further details, refer this pdf:
[attachment=4025]
Communication Systems
The popularity of laptops, mobile phones and Personal Digital Assistants and and the evolution of fast mobile networks, it is today possible to provide high qualitymobile applications and services to the end-users. The 4G technology combines standardized streaming
with a range of unique services to provide high-quality multimedia content . By providing data-transmission rates up to 20 Mbps, the 4G communication systems can provide provide high quality
streamed content to the end users.
MOBILE STREAMING CHALLENGES
mobile streaming services face the following challenges.
Heterogeneity
The display sizes and capabilities of mobile phones varying very much, and also different radio-access networks making multiple maximum-access page link speeds available. This can be mitigated by
capability exchange mechanisms that can enable the terminal and media server to negotiate mobile terminal and mobile network capabilities and user preferences.
Content Protection
This involves controlling what users can do
with conten. In the simplest form , content protection can be to is simply disallow the storage of received contentdigital rights . It also involves the management (DRM) concept, which uses
encryption and conditional access based on
usage rules to protect multimedia data.
. To prevent illegal copying ofmultimedia content like music and movies, the content providers are reluctant to deliver premium content
over digital networks without DRM mechanisms.
Streaming standardisation
The Internet Streaming Media Alliance (ISMA) and the Wireless Multimedia Forum (WMF) have emphasised the need for standardisation of the streaming services. The multimedia
protocol stacks and codecs video and audio
compression/decompression software must be standard to all the end user equipments.
For further details, refer this pdf:
[attachment=4025]
