IEEE Transactions on Signal Processing
Zero-forcing methods for downlink spatial multiplexing in multiuser MIMO channels
IEEE Transactions on Signal Processing
Generalized multiuser orthogonal space-division multiplexing
IEEE Transactions on Wireless Communications
Capacity and error probability analysis for orthogonal space-time block codes over fading channels
IEEE Transactions on Wireless Communications
Sum Capacity of Multiuser MIMO Broadcast Channels with Block Diagonalization
IEEE Transactions on Wireless Communications
Performance of TDMA and SDMA based Opportunistic Beamforming
IEEE Transactions on Wireless Communications - Part 1
Space-time block codes from orthogonal designs
IEEE Transactions on Information Theory
Opportunistic beamforming using dumb antennas
IEEE Transactions on Information Theory
On the achievable throughput of a multiantenna Gaussian broadcast channel
IEEE Transactions on Information Theory
Constellation space invariance of orthogonal space-time block codes
IEEE Transactions on Information Theory
Dirty-paper coding versus TDMA for MIMO Broadcast channels
IEEE Transactions on Information Theory
A simple transmit diversity technique for wireless communications
IEEE Journal on Selected Areas in Communications
| Hi-index | 0.01 |
This paper presents reliability comparison of opportunistic scheduling and block diagonalization (BD)-precoding in downlink MIMO systems, employing orthogonal space-time block coding (OSTBC) with multiple users. The opportunistic scheduling scheme transmits data of a user to provide the maximum effective signal-to-noise ratio (SNR), while the BDprecoding scheme transmits data for all users in a precoded form to remove co-channel interference. At first, we derive the exact analytical expressions of the average effective SNR for the opportunistic scheduling and BD-precoding schemes, respectively. Next, we derive the exact analytical expressions of the outage probability for both schemes. The diversity gain of outage probability is also quantified through asymptotic analysis. From the analytical results, the opportunistic scheduling scheme is shown to provide the effective SNR gain as well as the diversity gain, compared with the BD-precoding scheme, in proportion to the number of users. Finally, we illustrate the analytical results with corresponding simulation results.