Back to Search
Start Over
Beam-domain full-duplex transmission in massive MIMO system.
- Source :
- Physical Communication; Feb2018, Vol. 26, p116-127, 12p
- Publication Year :
- 2018
-
Abstract
- In this paper, we consider beam-domain full-duplex (FD) transmission in massive multiple-input multiple-output (MIMO) system. By exploiting the channel spatial sparsity, massive MIMO channel is compressed in the beam-domain under certain selected basis spaces and as a result the channel dimension required to be estimated can be greatly reduced. According to the distribution of effective beams of uplink/downlink channel and self-interference (SI) channel, all the users are scheduled into several uplink and downlink groups. With the estimated effective beam-domain channel, we design the uplink and downlink beamforming matrices at the base station to suppress the SI, inter-user interference and inter-group interference. The achievable sum-rate of the proposed beam-domain FD massive MIMO transmission scheme is analyzed and the joint user and BS power allocation scheme is proposed to optimize the system achievable sum-rate. Simulation results show that the proposed beam-domain FD transmission scheme outperforms existing time division duplex (TDD) and frequency division duplex (FDD) massive MIMO and FD massive MIMO transmissions schemes on the spectral efficiency performance. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 18744907
- Volume :
- 26
- Database :
- Supplemental Index
- Journal :
- Physical Communication
- Publication Type :
- Academic Journal
- Accession number :
- 127701687
- Full Text :
- https://doi.org/10.1016/j.phycom.2017.12.004