Performance Evaluation of a Multi-User MIMO System With Prediction of Time-Varying Indoor Channels

被引:47
作者
Huu Phu Bui [1 ]
Ogawa, Yasutaka [2 ]
Nishimura, Toshihiko [2 ]
Ohgane, Takeo [2 ]
机构
[1] Vietnam Natl Univ, Natl Key Lab Digital Control & Syst Engn, Univ Technol, Ho Chi Minh City, Vietnam
[2] Hokkaido Univ, Grad Sch Informat Sci & Technol, Sapporo, Hokkaido, Japan
关键词
Block diagonalization; channel prediction; Doppler frequency; eigenbeam-space division multiplexing; multi-user MIMO system; time-varying environment; E-SDM; TRANSMISSION; FEEDBACK; CAPACITY;
D O I
10.1109/TAP.2012.2214995
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
In this paper, the performance of a multi-user multiple-input multiple-output (MIMO) system in time-varying channels is evaluated using measurement data. We consider the multi-user MIMO system using a block diagonalization (BD) scheme and an eigenbeam-space division multiplexing (E-SDM) technique. In an ideal case, the BD scheme eliminates inter-user interference, and the E-SDM technique suppresses inter-stream interference. In actual radio environments, however, channels change over time. This causes interference in the multi-user MIMO system even though the BD scheme and the E-SDM technique are used. To overcome this problem, the authors have developed a simple channel prediction scheme on the basis of a linear extrapolation and have demonstrated its effectiveness by computer simulations assuming the Jakes' model. To verify the performance of the channel prediction scheme in actual environments, we conducted a measurement campaign in indoor environments and measured a large amount of channel data. Using these data, we examined the channel transition and channel tracking with the prediction method. Then we obtained the bit-error rate (BER) performance. The prediction technique was shown to track the channel and improve the BER performance almost to that in the ideal time invariant case.
引用
收藏
页码:371 / 379
页数:9
相关论文
共 29 条
[11]  
Daniels R. C., 2008, P IEEE GLOBECOM, P4593
[12]   A comparison of the HIPERLAN/2 and IEEE 802.11 a wireless LAN standards [J].
Doufexi, A ;
Armour, S ;
Butler, M ;
Nix, A ;
Bull, D ;
McGeehan, J ;
Karlsson, P .
IEEE COMMUNICATIONS MAGAZINE, 2002, 40 (05) :172-180
[13]   Fading channel prediction for mobile radio adaptive transmission systems [J].
Duel-Hallen, Alexandra .
PROCEEDINGS OF THE IEEE, 2007, 95 (12) :2299-2313
[14]   Overview of mobile WiMAX technology and evolution [J].
Etemad, Kamran .
IEEE COMMUNICATIONS MAGAZINE, 2008, 46 (10) :31-40
[15]   Shifting the MIMO paradigm [J].
Gesbert, David ;
Kountouris, Marios, Jr. ;
Heath, Robert W. ;
Chae, Chan-Byoung ;
Saelzer, Thomas .
IEEE SIGNAL PROCESSING MAGAZINE, 2007, 24 (05) :36-46
[16]   Limited Feedback Beamforming Over Temporally-Correlated Channels [J].
Huang, Kaibin ;
Heath, Robert W., Jr. ;
Andrews, Jeffrey G. .
IEEE TRANSACTIONS ON SIGNAL PROCESSING, 2009, 57 (05) :1959-1975
[17]  
Bui HP, 2011, IEEE ANTENNAS PROP, P59, DOI 10.1109/APS.2011.5996382
[18]   On the Trade-Off Between Feedback and Capacity in Measured MU-MIMO Channels [J].
Kaltenberger, Florian ;
Kountouris, Marios ;
Gesbert, David ;
Knopp, Raymond .
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, 2009, 8 (09) :4866-4875
[19]  
Kobayashi K, 2006, IEEE ICC, P4102
[20]  
Koivunen J., 2007, 2 EUR C ANT PROP EUC