Operating Characteristics for Detection of a Fading Signal in M Alternative Locations with D-Fold Diversity.
Abstract
The probabilities of correct decision and false alarm for a fading signal in M alternative locations with D-fold diversity are derived and numerically evaluated over the range of values M = 1, 2, 4, 16, 64, 256, 1024 and D = 1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64 for a wide range of signal-energy-to-noise-density-level ratios (ENR). These results which apply to the optimum receiver processor, have relevance to synchronization as well as to multiple alternative communication with thresholding. It is found that the optimum order of diversity does not correspond to the familiar 5 dB ENR per branch, but rather to ENR branch values as large as 14 dB for some cases of small false-alarm probability and moderate correct-decision probability.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 20, 1974
- Accession Number
- AD0786371
Entities
People
- Albert H. Nuttall
Organizations
- Naval Undersea Warfare Center