Proportional fair power allocation for OFDM-CDM systems in frequency-selective Rayleigh fading channels
(2006) 2006 IEEE 7th Workshop on Signal Processing Advances in Wireless Communications — Location: Cannes, France (2.July.2006)
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- Abstract
- Orthogonal frequency division multiplexing with code division multiplexing (OFDM-CDM) is one of the combined schemes of OFDM and CDMA techniques. The CDM component enables additional diversity in frequency selective fading channels. This paper proposes an optimal power allocation via proposal-fair strategy for the OFDM-CDM-based systems. A zero-forcing beamformer is used at the mobile unit and the basestation optimizes its power allocation to maximize the sum-rate subject to fairness constraints. Two optimization techniques are proposed. Simulation results are provided for typical downlink situation and a fairness index is compared to that of system optimized without fairness request.
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Brah, F., Louveaux, J., & Vandendorpe, L. (2006). Proportional fair power allocation for OFDM-CDM systems in frequency-selective Rayleigh fading channels. 2006 IEEE 7th Workshop on Signal Processing Advances in WirelessCommunications (IEEE Cat No. 06EX1431), 1-5. https://hdl.handle.net/2078.5/230083