Name
Title | ||
|---|---|---|
Performance and Complexity Analysis of Eigencombining, Statistical Beamforming, and Maximal-Ratio Combining |
Abstract | ||
|---|---|---|
For receive-side maximal-ratio combining (MRC) and maximum-average-SNR beamforming (BF), the wireless- channel fading correlation impacts symbol-detection performance — decreasing correlation improves/degrades MRC/BF perfor- mance — whereas the numerical complexity of these methods is fixed — high/low for MRC/BF. Matching signal processing complexity to the actual correlation conditions, and thus to the achievable performance, is possible with a superset of MRC and BF known as maximal-ratio eigencombining (MREC). For imperfectly known and correlated fading gains, new closed- form expressions are derived for the probability density function of the MREC output signal-to-noise ratio, as well as for the outage probability (OP) and average error probability. These new expressions permit seamless evaluation for any correlation value of MREC, MRC, and BF performance measures such as the amount of fading, deep-fade probability, diversity and array gains, and OP. Our results confirm that, in realistic scenarios, adaptive MREC can achieve MRC-like performance for BF-like complexity. Index Terms—Adaptive antenna arrays, array gain, chan- nel estimation, diversity gain, eigencombining, Rayleigh fading, Laplacian power azimuth spectrum, lognormal azimuth spread, numerical complexity, statistical beamforming. |
Year | DOI | Venue |
|---|---|---|
2009 | 10.1109/TVT.2009.2014167 | Vehicular Technology, IEEE Transactions |
Keywords | Field | DocType |
adaptive antenna arrays,array signal processing,diversity reception,eigenvalues and eigenfunctions,error statistics,fading channels,adaptive antenna arrays,average error probability,deep-fade probability,diversity gain,maximal-ratio eigencombining,statistical beamforming,wireless-channel fading correlation,Adaptive antenna arrays,Laplacian power azimuth spectrum (p.a.s.),Rayleigh fading,array gain,channel estimation,diversity gain,eigencombining,lognormal azimuth spread (AS),numerical complexity,statistical beamforming (BF) | Diversity gain,Beamforming,Rayleigh fading,Fading,Maximal-ratio combining,Signal-to-noise ratio,Diversity combining,Electronic engineering,Estimation theory,Mathematics | Journal |
Volume | Issue | ISSN |
58 | 7 | 0018-9545 |
Citations | PageRank | References |
4 | 0.52 | 9 |
Authors | ||
2 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Constantin Siriteanu | 1 | 46 | 8.76 |
| Steven D. Blostein | 2 | 329 | 61.46 |