Name
Title | ||
|---|---|---|
Performance Analysis of Linear Modulation Schemes With Generalized Diversity Combining on Rayleigh Fading Channels With Noisy Channel Estimates |
Abstract | ||
|---|---|---|
Generalized diversity combining (GDC), also known as hybrid selection/maximal ratio combining or generalized selection combining, is a low-complexity diversity combining technique by which a fixed subset of a large number of available diversity channels is chosen and then combined using the rules of maximal ratio combining. In this paper, we analyze the performance of GDC on time-correlated Rayleigh fading channels with noisy channel estimates. We derive expressions for the probability of error for various linear modulation schemes with coherent detection, and discuss the conditions under which the analysis can be extended to noncoherent and differentially coherent receiver structures. Throughout the paper, using a fundamental approach to obtain the decision statistic at the combiner output, a number of new expressions for the error probabilities are obtained in a rigorous way, along with a presentation of their performance with channel estimation errors. The final expressions have roughly the same complexity of evaluation as that for the channel with only additive Gaussian noise. Our results correct various inaccuracies in the literature, and show that coherent receivers based on imperfectly estimated channel knowledge incur a significant performance loss. |
Year | DOI | Venue |
|---|---|---|
2007 | 10.1109/TIT.2007.909130 | IEEE Transactions on Information Theory |
Keywords | Field | DocType |
rayleigh fading channels,available diversity channel,noisy channel estimate,time-correlated rayleigh fading channel,generalized diversity,generalized diversity combining,linear modulation schemes,coherent detection,channel estimation error,coherent receiver,maximal ratio,imperfectly estimated channel knowledge,performance analysis,noisy channel estimates,differentially coherent receiver structure,modulation,engineering,error probability,wireless communication,probability of error,probability,radio receivers,diversity combining,gaussian noise | Discrete mathematics,Rayleigh fading,Expression (mathematics),Computer science,Maximal-ratio combining,Algorithm,Communication channel,Modulation,Diversity combining,Estimation theory,Statistics,Gaussian noise | Journal |
Volume | Issue | ISSN |
53 | 12 | 0018-9448 |
Citations | PageRank | References |
30 | 1.35 | 37 |
Authors | ||
3 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| R. Annavajjala | 1 | 48 | 2.40 |
| P. C. Cosman | 2 | 256 | 18.49 |
| L. B. Milstein | 3 | 1670 | 254.06 |