Problems in Network Coding and Error Correcting Codes Appended by a Draft Version of S. Riis "Utilising Public Information in Network Coding"

In most of todays information networks messages are send in packets of information that is not modified or mixed with the content of other packets during transmission. This holds on macro level (e.g. the internet, wireless communications) as well as on micro level (e.g. communication within processors, communication between a processor and external devises). Today messages in wireless communication are sent in a manner where each active communication channel carries exactly one “conversation”. This approach can be improved considerably by a cleverly designed but sometimes rather complicated channel sharing scheme (network coding). The approach is very new and is still in its pioneering phase. Worldwide only a handful of papers in network coding were published year 2001 or before, 8 papers in 2002, 23 papers in 2003 and over 25 papers already in the first half of 2004; (according to the database developed by R. Koetters). The first conference on Network Coding and applications is scheduled for Trento, Italy April 2005. Research into network coding is growing fast, and Microsoft, IBM and other companies have research teams who are researching this new field. A few American universities (Princeton, MIT, Caltech and Berkeley) have also established research groups in network coding.

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