On superposition coding based cooperative diversity schemes
We propose two-level superposition coding based relaying schemes in which optimal power and rate allocations are investigated. Instead of confining us with fixed decoding order, two-levels of signals are considered as virtual users in a two-user multiple access channel and we prove that in certain cases the optimal joint multiuser decoding is equivalent to an approach using successive interference cancellation in a fixed order. Numerical results are provided to show the improvements in power savings using our proposed strategies compared with fixed rate and single level coding approach. © 2005 IEEE.
Publication Source (Journal or Book title)
Conference Record - Asilomar Conference on Signals, Systems and Computers
Goparaju, A., Wei, S., & Liu, Y. (2005). On superposition coding based cooperative diversity schemes. Conference Record - Asilomar Conference on Signals, Systems and Computers, 2005, 1046-1050. Retrieved from https://repository.lsu.edu/eecs_pubs/1255