Name
Title | ||
|---|---|---|
Multi-User and Single-User Throughputs for Downlink MIMO Channels with Outdated Channel State Information |
Abstract | ||
|---|---|---|
Prior research has shown that delayed channel state information (CSI) severely degrades the throughput performance of multi-user (MU) multiple-input multiple-output (MIMO) transmission, resulting in a preference for single-user (SU) transmission. This paper investigates how the relative performance of MU-MIMO and SU-MIMO is affected by 1) different Doppler spectra, and 2) high-order prediction methods for channel estimation. Simulation results reveal that the often-used Jakes-Clarke spectrum is the worst case for MU performance. By evaluating the impact of other Doppler spectra and high-order channel prediction on MU-MIMO performance, we demonstrate that MU can tolerate larger CSI delays and retain its theoretical advantage over SU in practice. |
Year | DOI | Venue |
|---|---|---|
2014 | 10.1109/WCL.2014.032814.140050 | IEEE Wireless Commun. Letters |
Keywords | Field | DocType |
Doppler effect,Wireless communication,Channel estimation,Throughput,MIMO,Polynomials,Array signal processing | 3G MIMO,Multi-user MIMO,Control theory,Computer network,Communication channel,MIMO,Electronic engineering,Throughput,Precoding,Mathematics,Telecommunications link,Channel state information | Journal |
Volume | Issue | ISSN |
3 | 3 | 2162-2337 |
Citations | PageRank | References |
4 | 0.42 | 3 |
Authors | ||
5 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Qi Wang | 1 | 10 | 3.07 |
| Larry J. Greenstein | 2 | 520 | 76.65 |
| Len J. Cimini | 3 | 4 | 0.42 |
| Douglas S. Chan | 4 | 90 | 8.37 |
| Ahmadreza Hedayat | 5 | 4 | 0.42 |