Design Optimization for Low-Complexity FPGA Implementation of Symbol-Level Multiuser Precoding

More specifically, the symbol- level problem of minimizing the spatial peak-to-average power ratio (SPAPR) 2 , under QoS constraints, is proposed and solved for M-PSK modulations..

Ottersten, “Constructive Multiuser Interference in Symbol Level Precoding for the MISO Downlink Channel,” IEEE Transactions on Signal processing, vol. Ottersten,

2) User-level precoding in which multiple codewords are transmitted simultaneously but each codeword is ad- dressed to a single user. This case is also known as multiantenna

Finally, we compare our results with those obtained from the robust block-level precoding scheme proposed in [22], re- ferred to as “robust BLP”, which solves a convex

From the definition of constructive interference, we should design the constructive interference precoders by granting that the sum of the precoders and data symbols forces the

Finally, the performance of OB is studied, which presents the optimal user-level precoding that aims at minimizing the transmit power, it can be noted that the symbol level

Although the proposed closed-form method is more computationally complex than block- level precoding schemes, our results show that in return, it provides substantial gains over

Overall, the SL-PPM approach allows to reduce the instantaneous power peaks amongst the different beams at the expense of a higher average transmit power, achieving a more