Abstract | ||
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For a fading Gaussian multiple access channel with user cooperation, we obtain the optimal power allocation policies that maximize the rates achievable by block Markov superposition coding. The optimal policies result in a coding scheme that is simpler than the one for a general multiple access channel with generalized feedback. This simpler coding scheme also leads to the possibility of formulating an otherwise non- concave optimization problem as a concave one. Using the channel state information at the transmitters to adapt the powers, we demonstrate significant gains over the achievable rates for existing cooperative systems. |
Year | Venue | Keywords |
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2006 | Clinical Orthopaedics and Related Research | index terms: cooperative diversity,multiple access channel,fading,user cooperation.,power control,optimization problem,indexing terms,cooperative diversity |
Field | DocType | Volume |
Mathematical optimization,Fading,Cooperative diversity,Computer science,Power control,Markov chain,Communication channel,Coding (social sciences),Optimization problem,Channel state information | Journal | abs/cs/060 |
Citations | PageRank | References |
0 | 0.34 | 8 |
Authors | ||
2 |
Name | Order | Citations | PageRank |
---|---|---|---|
Onur Kaya | 1 | 106 | 13.85 |
Sennur Ulukus | 2 | 4800 | 386.35 |