Reed
Solomon (RS) codes have been widely used in a variety of communication systems
such as space communication link, digital subscriber loops and wireless
systems, as well as in networking Communications and magnetic and data storage
systems. Continual demand for ever-higher data rates and storage capacity makes
it necessary to devise very high-speed implementations of RS Decoders. Newer
and faster implementations of the decoder are being developed and implemented.
A number of algorithms are available and this often makes it difficult to
determine the best choice due to the number of variables and trade-offs
available. Therefore, before making a good choice for the application a
thorough research is needed into the decoders available. For IEEE 802.15-03
standard proposal (commonly known as UWB) in particular, very high data rates
for transmission are needed. According to the current standard, the data rate
for UWB will be as high as 480 Mbps. Since the standard is also meant for
portable devices, power consumption is of the prime concern, and at the same
time the silicon area should be kept as low as possible. As such, a low power
and high throughput codec is needed for UWB standard. Reed Solomon is seen as a
promising codec for such a standard.
Reed Solomon(RS) codes have been
widely used in a variety of communication systems such as space communication
link, digital subscriber loop sand wireless systems, as well as in networking
communications and magnetic and data storage systems. Continual demand forever
higher data rates and storage capacity makes it necessary to devise very
high-speed implementations of RS decoders. Newer and faster implementations of
the decoder are being developed and implemented. A number of algorithms are
available and this often makes it difficult to determine the best choice due to
the number of variables and trade-offs available. Therefore, before making a good
choice for the application a thorough research is needed in to the decoders
available.
For IEEE802.15-03 standard proposal
(commonly known as UWB) in particular, very high data rates for transmission
are needed. According to the current standard, the data rate for UWB will be as
high as 480 Mbps. Since the standard is also meant for portable devices, power
consumption is of the prime concern, and at the same time the silicon area
should be kept as low as possible. As such, a low power and high throughput
codec is needed for UWB standard. Reed Solomon is seen as a promising codec for
such a standard.
Reed
Solomon codes are perhaps the most commonly used in all forms of transmission
and data storage for forward error correction(FEC).The basic idea of FEC is to
add redundancy at the end of the messages systematically so as to enable the
retrieval of messages correctly despite errors in the received sequences. This
eliminates he need of retransmission of messages over a noisy channel. RS codes
are a subset of Bose-Chaudhuri-Hocquenghem(BCH) codes and are linear block
codes is one of the best references for RS Codes.
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