Senin, 11 Januari 2010

A NEW CONCEPT OF INTELLIGENT DESIGN THE FUTURE HANDPHONE

1. INTRODUCTION
The development of wireless radio standard on mobile devices is increasing.
Until now, mobile phone manufacturers (HP) still face difficulties when adding
new electronic circuit for the desired radio interface. HP currently integrated with
one chip for 3G (UMTS in Europe and Japan, CDMA-2000 in the U.S.), one chip
2G (usually GSM), single-chip Bluetooth and sometimes one chip to
GPS. In other words, there is no benefit that can be taken as fact processing
radio computing based on common standards and not by radio. This
linear effect of the increase in manufacturing cost, power consumption and size
device / mobile phone. Software Radio [1] offers the same new evolution with the
Proceeding Innovative Writing Olympics (Okti) 2009
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evolution of the personal computer that is using the processor for computing the radio,
so the phone can change the radio standards simply by re-programming
processornya. These simple ideas make an impact and challenges on several
technology. New paradigm of an ideal radio software known as the Software
Defined Radio (SDR) as described in 0. SDR uses some processing
components (not just one processor) to share the computing process. So topic
research related to this discussion is about the future mobile phone design
microprocessor-based support with radio komplesitas. In addition, the mobile must
support the new standards in the future, lower power requirements, can
adapt to new features and economical in the use of bandwidth. These issues have an effect
and provide new challenges to the concept of Cognitive Radio (CR) [2].
We focus our research on the design architecture for efficient management
reconfiguration requirements on processing hardware components required by the features
CR cognitive device.
This paper consists of 5 parts, part 2 brief history of evolution of radio technology standards
mobile. Section 3 of the cognitive radio system, explains the concept of radio, the process of reconfiguration
the CR devices, and SDR from the SDR hardware approach. Section 4
explain the concept we tawarakan, management architecture (HDCRAM) also
displays meta-model design with high-level approach. Section 5 describes
about HDCRAM simulator and examples of design sederahana scenario. Last part 6
conclusions.
2. EVOLUTION OF TECHNOLOGY HANDPHONE
In this section we want to remind again of the history of mobile communication
(mobile phone). The first generation wireless telephone technology was introduced in 1980.
This first generation telecommunications standard based on analog and only used by
professionals because of cost considerations. The fundamental difference between the two systems
telecommunications 1G and 2G wireless is that the radio signals that 1G networks are
using an analog system, while the 2G network using a digital system. In
1990, second generation (2G) mobile communications systems such as GSM, IS-136 (TDMA), iDEN
and IS-95 (CDMA) began to be introduced. 2G also introduced new services for communications
sound on digital networks. SMS text messaging and the shape of access to media content can be
conducted through HP. 2G makes wireless communication systems become cheaper, the size of
HP getting smaller and mobile. with 2G, HP became increasingly popular in the community. Shortly
after the 2G network developed, research began to focus on third generation systems (3G).
The aim is to improve the transfer of data to support voice services, data
and multimedia such as video streaming. During the development of 3G systems, also developed
2.5 system like the U.S. CDMA2000 1x, EDGE and GPRS in europe and asia, which is
the development of 2G systems. The fourth generation (4G) can also see as 3G, which is
is a new system with new networks and new modulation techniques. Or it could also
considered as a means of combining existing features with wireless broadband
acces, WiFi, Multimedia Messaging Service (MMS), video chat, mobile TV, HDTV content,
Digital Video Broadcasting (DVB), Intelligence Transport System (ITS), Global Positioning
System (GPS), and conventional services such as voice and data yangmenggunakan
bandwidth. 4G mobile phone so that a multi-application device is not just
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telephone. Adding intelligence to these devices leads us to the concept of
Cognitive Radio (CR). CR is a continuation of the complexity of the standard 4G radio side.
This we explained in the chapter on how the effects of CR on the design
mobile phone
3. Cognitive RADIO SYSTEM
3.1. Software Defined Radio (SDR)
Radio is all devices that can send and receive wireless signals
using radio frequency (RF) of the electronic spectrum as a facility for
transfer of information. Currently, more commonly known as radio devices such as telephones
cellular, phone, computer, remote cars, vehicles and television. Radio devices have
limited function and can be modified only physically. As a result production costs
increased and limited flexibility in supporting different radio standards.
Conversely, Software Defined Radio technology offers efficiency and provides an efficient
and relatively inexpensive as the solution of these constraints, enabling multi-mode, multi-band and
or multi-functional wireless devices that can be improved by upgrading
software

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