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System state-independent-unique-decodable CCMA codes.

Research output: Contribution to journalJournal article

<mark>Journal publication date</mark>06/1993
<mark>Journal</mark>IEE Proceedings I (Communications, Speech and Vision)
Issue number3
Number of pages4
Pages (from-to)185-188
Publication StatusPublished
<mark>Original language</mark>English


Because of the random properties of practical communication networks the unique decoding of CCMA codes should include two steps. First, to identify the current system state, and secondly to uniquely decode the added code-words. When no special information is provided to distinguish different system states, the conventionally defined collaborative coding multiple access (CCMA) codes in most previous studies will be no longer uniquely decodable. Based on this consideration, the concept of system state-independent-unique-decodable (SIUD) CCMA codes is introduced. A construction method of SIUD CCMA codes and the corresponding performance evaluation are also presented