| Author(s): |
Michael R. Souryal; Huiqing You; |
| Title: |
Diversity Performance of a Practical Non-Coherent Detect-and-Forward Receiver |
| Published: |
November 30, 2008 |
| Abstract: |
We propose a non-coherent receiver for the fixed detect-and-forward relay channel and derive a closed-form tight upper bound on its bit error probability in Rayleigh fading channels. Using this upper bound, we show that the receiver achieves nearly full, second-order diversity, and the gap from full diversity is quantified. While the general receiver depends on the source-relay channel statistics, we show that similar diversity performance can be achieved when only first-order statistics of the source-destination channel are known. The receiver is derived using the generalized likelihood ratio test to eliminate dependence on the channel gains, applies to M-ary orthogonal signal sets, and is independent of the fading distribution. The results demonstrate that low-complexity transceivers, such as those used in some sensor networks, can benefit from cooperative diversity. |
| Conference: |
IEEE Global Telecommunications Conference (GLOBECOM) 2008 |
| Pages: |
6 pp. |
| Location: |
New Orleans, LA |
| Dates: |
November 30-December 4, 2008 |
| Keywords: |
Detect-and-forward; Cooperative diversity; Generalized likelihood ratio; Non-coherent; Relay |
| Research Areas: |
Wireless |
| PDF version: |
 Click here to retrieve PDF version of paper (178KB) |
