PAPR Minimization through Spatio-temporal Symbol-level Precoding for the Non-linear Multi-user MISO Channel

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..

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

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

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

Ottersten, “Constructive Multiuser Interference in Symbol Level Precoding for the MISO Downlink Channel,” IEEE Transactions on Signal processing 2015, Available on

5 C 1 and C 2 depend on the type of modulation and the constellation point as elaborated in section V... the multi-level amplitudes for each user have been expressed as

Ottersten, “Faster- than-Nyquist signaling through spatio-temporal symbol-level precoding for the multiuser MISO downlink channel,” IEEE Transactions on Wireless Communications,

The proposed symbol-level precoding design allows to con- trol the instantaneous per-antenna transmit power, thus leading to a reduction of the power peaks, which are detrimental