Name
Abstract | ||
|---|---|---|
Coordinated beamforming (CBF) provides improved sum rate with less overhead and computational complexity, and its theoretical performance analysis is mostly finished in a spatially uncorrelated environment. In this paper, we investigate the effect of spatial correlation on the sum rate of a two-cell multiuser downlink channel. We analyze the scaling laws of the sum rate with a large number of users. To improve the performance, different roles are assigned to the two cells: One is a master cell, and the other is a slave cell. The base station (BS) of the master cell requests the interference cancellation to the slave cell, and the BS of the slave cell performs precoding to cancel the interference influencing over the master cell, although the achievable rate of the slave cell is decreased. The decision of the master and slave cells can be affected by the number of users and the degree of spatial correlations. From computer-based simulations, we show that our proposed algorithm can achieve a higher sum rate than other previous approaches with lower overhead. |
Year | DOI | Venue |
|---|---|---|
2015 | 10.1109/TVT.2014.2329477 | IEEE T. Vehicular Technology |
Keywords | Field | DocType |
base station,asymptotic sum rate in spatially correlated two-cell channel,bs,multiple-input???multiple-output (mimo),radiofrequency interference,cellular radio,precoding,coordinated beamforming,spatially uncorrelated environment,cbf,computer-based simulation,user scheduling,coordinated beamforming (cbf),channel coding,antenna correlation,two-cell multiuser downlink channel,computational complexity,wireless channels,slave cell,scaling law,interference suppression,interference cancellation,master cell,correlation methods,spatial correlation effect,signal to noise ratio,interference,correlation,limiting,mimo,vectors | Base station,Beamforming,Spatial correlation,Computer science,Communication channel,MIMO,Electronic engineering,Interference (wave propagation),Zero-forcing precoding,Precoding | Journal |
Volume | Issue | ISSN |
64 | 3 | 0018-9545 |
Citations | PageRank | References |
1 | 0.39 | 18 |
Authors | ||
4 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Haelyong Kim | 1 | 21 | 4.03 |
| Gibum Kim | 2 | 1 | 1.74 |
| Wan Choi | 3 | 280 | 25.77 |
| Hyuncheol Park | 4 | 461 | 66.09 |