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Radio System - Essay Example

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Advancements in Integrated circuits have enabled easy installation of wireless network systems. The modern times demand a multi radio system. The prime aim is to provide communication to private networks or data service centers. …
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Radio System
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Radio Systems: Table of Content ….……………………………………………………………………………………………………………………………………… Introduction ……………………………………………………………………………………………………………………………………… Requirements …………………………………………………………………………………………………………………………………… Components………………………………………………………………………………………………………………………………………. Considerations…………………………………………………………………………………………………………………………………… Standards …………………………………………………………………………………………………………………………………………. Abstract: Advancements in Integrated circuits have enabled easy installation of wireless network systems. The modern times demand a multi radio system. The prime aim is to provide communication to private networks or data service centers. The setup will be established under the rules and regulations set forward by Radio communication Act of Canada. Prime focus is providing of services in affordable range at an optimum cost and improved quality communication with in an office setup. Since the radio system will be developed and installed in an office environment, for this purpose a fix frequency radio system is recommendations .The report looks at the overall working of radio system and it further contains list of requirements and the methodology of how to implement the whole setup Introduction: Radio signals are operational over line-of-sight through the use of an amplifier, in case of non line of sight reflections and rarefaction techniques are used .Although an ad-hoc system setup can be implanted however ,for permanent and reliable communication a structured body is always advisable to makes use of CDMA/FDMA/TDMA/3GPP.A multi radio setup is advised for full duplexed transmission, another advantage of multi radio system is it can transmit over two channels at a same time .This all will take place in a Mesh Topology .Frequency equalization and controlling is done through Digital signal processor or software packages . The first and most important step in designing a radio system is to select the frequency band that is to be used for transmission; they range from VHF to UHF band. Licensing authority of Canada allocates the respective frequency band .The selection of frequency band is subjective and depends on several factors like locality of the station, based on the locality the choice of frequency band is made. For plain areas VHF suffices normally, for more hilly areas and overcrowded parts Ultra High frequency band selection is advisable .Repeater is an essential part of the whole setup and will be implemented at different sights, for this purpose ARS (Automatic Repeater Stations) is implemented .A coverage map is usually used for the purpose of line of sight and non line of sight elements .Interference is always a concern and is basically the destructive meeting of two signals, it could result from various factors, both internal and external. Several computer run programs are available that will help determining further interference from all sources. A studio transmitter link is an essential component of whole system that enables the connection between the base station and receiving end.STL serves well in case of Non –line of sight transmission, Concept of multiple radios is an associated term and its advantages are improved performance and power consumption, multiple channels entertainment at one time is also done through multiple radios. Requirements /components: Filters ,Receivers(modules) and amplifiers, wiring, high power transmitters, Antennas, Repeaters, Base station, Coverage Map ,Power supplies ,STL ( studio transmitter link ). The Radio system itself consists of General purpose micro processor ,FPGAs( Field programmable Graphic Array ) ,Digital signal controllers, application specific integrated circuit , Analogue to Digital converter Considerations: Several factors are to be considered while establishing this setup. The non technical yet most important part is providing of Optimum temperature to the equipment. On technical side factors like Load balancing, throughput interference free surrounding and availability of coverage map are a contributing factor to successful implementation of the radio system Standards: The IEEE standards for wireless communication are standardized by category IEEE 802.11.further variants of this technology include 802.11a,802.11b, 802.11g.All mentioned standards have their own capacity and range in terms of frequency . 802.11a and 802.11g have a capacity bag of 54Mbps, where as 802.11b can pull up to 11 Mbp, this along with other Radio Frequencies that can be used for transmission and operation. Read More
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