Non-Orthogonal Multiple Access (NOMA) for Cellular Future Radio Access

Yuya Saito, Yoshihisa Kishiyama, Anass Benjebbour, Takehiro Nakamura, Anxin Li, Kenichi Higuchi
2013 2013 IEEE 77th Vehicular Technology Conference (VTC Spring)  
To implement K-user multi-rate multi-power transmission in non-orthogonal multiple access systems with successive interference cancellation, a repeat accumulator code serially concatenated with a spreading is employed for each user to implement a variable, low-rate coding. A joint rate and power optimization (RPO) is proposed to maximize the sum rate with error free decoding. Numerical results show that our proposed codingspreading scheme with joint RPO, supporting the multi-rate transmission
more » ... th the same structure of encoder, approaches the Shannon limit.
doi:10.1109/vtcspring.2013.6692652 dblp:conf/vtc/SaitoKBNLH13 fatcat:ggbwsbwd5rdrpm6p5c3tt2kuxm