Linear Multicast Beamforming Schemes for Coded Caching

A single cell downlink scenario is considered, where a multiple-antenna base station delivers contents to cache-enabled user terminals. Depending on the available degrees of freedom, several multicast messages are transmitted in parallel to distinct subsets of users. In the multicast beamformer design, we restrict ourselves to linear receiver implementation, which does not require successive interference cancellation unlike in the more optimal baseline scheme. With a small loss in performance, the complexity of both the receiver and transmitter implementation can be significantly reduced.

Tölli Antti, Kaleva Jarkko, Shariatpanahi Seyed Pooya, Khalaj Babak

A4 Article in conference proceedings

Conference Record of the Fifty-Second Asilomar Conference on Signals, Systems & Computers

A. Tölli, J. Kaleva, S. P. Shariatpanahi and B. Khalaj, "Linear Multicast Beamforming Schemes for Coded Caching," 2018 52nd Asilomar Conference on Signals, Systems, and Computers, Pacific Grove, CA, USA, 2018, pp. 172-176. doi: 10.1109/ACSSC.2018.8645285