06-03-2013, 02:37 PM
STUDY ON 4G COMMUNICATION ARCHITECTURE COMPONENTS FOR SOCIAL NETWORKS
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ABSTRACT
The modern communication system is aimed to reach the real world one environment from virtual world
via connecting resources of one with another through social network system. The communication process is
aggravated various infrastructural development to reach in this current level such as 3G and 4G
communication system. The user expectation also increased to meet their personal and social applications.
The users are try to integrate the personal and social network technology with real time operations for their
personal and business objectives. This paper is provides technological features of an existing 4G
communication technology and its architecture to integrate the social networking process.
INTRODUCTION
Mobile systems focus on seamlessly
integrating the existing wireless technologies
including GSM, wireless LAN, and Bluetooth.
4G systems supports comprehensive and
personalized services, providing stable system
performance and quality service [1] . 4G is a
Mobile multimedia, anytime anywhere, Global
mobility support, integrated wireless solution,
and customized personal service network system
[2]. 4G is used broadly to include several types
of broadband wireless access communication
systems along with cellular telephone systems.
A 4G cellular system must have target peak
data rates of up to approximately 100 Mbit/s for
high mobility such as mobile access and up to
approximately 1 Gbit/s for low mobility such as
nomadic/local wireless access, according to the
International Telecommunication Union[ITU]
requirements. Scalable bandwidths up to at least
40 MHz should be provided. A 4G system is
expected to provide a comprehensive and secure
all-IP based solution where facilities such as IP
telephony, ultra-broadband Internet access,
gaming services and High Definition Television
(HDTV) streamed multimedia may be provided
to users.
TECHNOLOGY USED IN 4G
COMMUNICATION SYSTEM
The infrastructure and the terminals of 4G
will have almost all the standards from 2G to 4G
implemented. The infrastructure for 4G will be
only packet-based (all-IP). But there is
suggestion to have an open Internet platform[2].
The 4G technology en suite with 802.16e
mobile version of WiMax (also known as
WiBro), and HC-SDMA, Adoptive Modulation
and coding (AMC),Adaptive Hybrid ARQ ,
MIMO AND OFDM and Open distributed Ad-
Hoc Wireless Network.
ADAPTIVE MODULATION AND
CODING (AMC)
The principle of AMC is to change the
modulation and coding format (transport format)
in accordance with instantaneous variations in
channel conditions, subject to system
restrictions. AMC extends the system’s ability to
adapt to good channel conditions. Channel
conditions should be estimated based on
feedback from the receiver. AMC allows
different data rates to be assigned to different
users depending on their channel conditions.
Since the channel conditions vary over time, the
receiver collects a set of channel statistics that
are used by both the transmitter and receiver to
optimize system parameters such as modulation
and coding, signal bandwidth, signal power,
training period, channel estimation filters, and
automatic gain control[3]. This AMC helped to
integrate the 2G , 3G architecture uses into the
forth coming 4G devices.
SOCIAL NETWORK ARCHITECTURE
In the social network system has three layer
processes. In this three layer application layer
establish the interface with the user and rest of
network process. In the interface level mailing,
browsing, office work , annotations, knowledge
bench , block and chat applications . These
interface mainly used to maintain the
communication with the social members and
share information among the group . At the same
time layer inherit to middle ware layer to
register, crate communication and provide the
service to application layers.
FLEXIBILITY OF 4G ARCHITECTURE
FOR SOCIAL NETWORKING
4G Communication architecture will
provide access through a collection of radio
interfaces, seamless roaming/handover and the
best-connected service, combining multiple radio
access interfaces (such as WLAN, Bluetooth and
GPRS) into a single network that subscribers
may use. It allows any mobile device to
seamlessly roam over different wireless
technologies automatically, using the best
connection available for the intended use. Users
will have access to different services, increased
coverage, the convenience of a single device, one
bill with reduced total access cost, and more
reliable wireless access even with the failure or
loss of one or more networks. This technology
supported with the support of Hardware as
service (Haas ) to the social networking
members. They can access the network
communication system using any available
network infrastructure as a Service (Iaas) .
CONCLUSION
4G communication system is dwell in many
application of real time communication system
with High speed network capacity, Fast/seamless
handover across multiple networks, Wireless
access technologies, MIMO and Multimedia
support. The high end 4G communication
architecture have flexibility to construct the
social networking process in an effective manner
to integrate the corporate , private and public
network. This study provides the possible
technology adaptation for the social networking
effective process using 4G communication
architecture.