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Methods of Wireless Computing Wireless computing is the topic of much conversation today The concept has been around for sometime now but has been mainly utilizing communication protocols that exist for voice based communication It is not intended to replace wired data communication but instead to be utilized in areas that it would be otherwise impossible to communicate using wires Only recently has the industry been taking steps to formulate a standard that is more suitable to data transmission There are a many methods of wireless communication being theorized and tested but is will only discuss few in this paper Methods Radio This is the method that makes use of standard radio waves in the 902 MHz to 928 MHz frequency range Although these frequencies are well used methods have been developed to ensure data integrity Spread spectrum transmission of data is a method where the transmitter will send information simultaneously out over many frequencies in the range increasing the change that all data will eventually reach the receiver Frequency hopping is an additional measure that also enables data security The 26 MHz range of frequencies is further divided in to channels The transmitter then sends out data hopping from one channel to the next in a certain pattern known to the receiver Within each channel spread spectrum transmission can be used to maintain interference avoidance Some of this transmission manipulation can be avoided by transmitting at a frequency that is less used Some developers have tried transmitting in the gigahertz range The disadvantages here are 1 Higher frequencies mean shorter wavelengths and shorter wavelengths do not penetrate solid objects like walls and floors 2 The same transmission strength employed by lower wavelength transmitters yields a shorter range at higher frequencies This means that transmission strength will need to be boosted something hard to accomplish using portable
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