Power Control for User Cooperation
<|reference_start|>Power Control for User Cooperation: 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.<|reference_end|>
@article{kaya2006power,
    title={Power Control for User Cooperation},
    author={Onur Kaya and Sennur Ulukus},
    journal={arXiv preprint arXiv:cs/0601124},
    year={2006},
    archivePrefix={arXiv},
    eprint={cs/0601124},
    primaryClass={cs.IT math.IT}
}