Abstract
Time-reversal (TR) precoding focuses the energy of the effective channel in time and improves receive performance of a single tap receiver or a minimum mean square error (MMSE) receiver with distributed antenna systems (DAS). Frequency-domain equal-gain-combining (FD-EGC) scheme is proposed as a new TR scheme, which works in linear block precoding (LBP) fashion and has better temporal focusing performance than the traditional TR. Extending the FD-EGC as LBP in DAS, the mean square error is analyzed for the MMSE equalizer at receiver. We show that the FD-EGC with a few antennas, which is a more realistic case than that with many antennas, has better performance than the traditional TR.
| Original language | English |
|---|---|
| Article number | 6259792 |
| Pages (from-to) | 1454-1457 |
| Number of pages | 4 |
| Journal | IEEE Communications Letters |
| Volume | 16 |
| Issue number | 9 |
| DOIs | |
| Publication status | Published - 2012 |
Bibliographical note
Funding Information:Manuscript received May 4, 2012. The associate editor coordinating the review of this letter and approving it for publication was A. M. Tehrani. The authors are with the Department of Electrical and Electronic Engineering, Yonsei University, Seoul, 120-749 Korea (e-mail: bright-stone@csp.yonsei.ac.kr, {msh0324, cylee}@yonsei.ac.kr). This research was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (2010-0025659). Digital Object Identifier 10.1109/LCOMM.2012.073112.120972
All Science Journal Classification (ASJC) codes
- Modelling and Simulation
- Computer Science Applications
- Electrical and Electronic Engineering