Abstract
In this letter, we provide an expression of spatial multiplexing gain (SMG) for two mutually interfering multiple-input multiple-output (MIMO) broadcast channels, referred to as MIMO-IBC, with linear transceiver. We derive the SMG with respect to user antenna distribution, and compare the systems with and without cooperation among receive antennas in each cell. Additionally, we propose a linear precoding and decoding algorithm for the MIMO-IBC which maximizes the sum rate by extending a solution for single-cell multiple-input single-output broadcast channels. Simulation results confirm the accuracy of our theoretical SMG analysis for the MIMO-IBC.
| Original language | English |
|---|---|
| Article number | 5559499 |
| Pages (from-to) | 3012-3017 |
| Number of pages | 6 |
| Journal | IEEE Transactions on Wireless Communications |
| Volume | 9 |
| Issue number | 10 |
| DOIs | |
| Publication status | Published - 2010 Oct |
Bibliographical note
Funding Information:This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MEST) (No.2010-0017909). A part of this work was presented at the IEEE International Conference on Communications (ICC), Cape Town, South Africa, May 2010.
Keywords
- Spatial multiplexing gain
- broadcast channel (BC)
- minimum mean-squared error (MMSE)
- multiple-input multiple-output (MIMO)
- transmit beamforming
ASJC Scopus subject areas
- Computer Science Applications
- Electrical and Electronic Engineering
- Applied Mathematics