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OPTIMAL DECODING ORDER UNDER TARGET RATE CONSTRAINTS

Abstract : In this contribution, we derive the optimal power allocation under target rate constraints in the case of an uplink multiuser system. Using asymptotic results based on random matrix theory, we provide a unified framework for determining the optimal decoding order when using Successive Interference Cancellation (SIC) receivers, namely the MMSE (Minimum Mean Square Error) and Matched filter SIC. Moreover, for decentralized systems, we show that each user can, under certain conditions, solely determine the power allocation based only on his channel energy and the statistics of the other users. Simulations in the case of finite systems validate the asymptotic claims.
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https://hal-supelec.archives-ouvertes.fr/hal-00280553
Contributor : Samir Medina Perlaza <>
Submitted on : Wednesday, May 21, 2008 - 11:33:58 AM
Last modification on : Tuesday, June 30, 2020 - 4:04:07 PM

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  • HAL Id : hal-00280553, version 1

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Alberto Suarez, Merouane Debbah, Laura Cottatellucci, Eitan Altman. OPTIMAL DECODING ORDER UNDER TARGET RATE CONSTRAINTS. VIII IEEE Workshop on Signal Processing Advances in Wireless Communications, Jun 2007, Helsinki, Finland. pp.Annals. ⟨hal-00280553⟩

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