Eric Jacobsen ericjster

## BeaconResearch.md

      
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                iBeacon / Beacon Research
              
          
    #IBeacon location research

Links and notes for ibeacon indoor location
##General links

Bluetooth Indoor Positioning - http://tam.unige.ch/assets/documents/masters/bekkelien/Bekkelien_Master_Thesis.pdf
Experiment video with comments from J. Krzych from Estimote - http://www.youtube.com/watch?v=dMWEl6GBGqk

##Trilatertion

  
## dataloss.rb
# Parameters:
prob_nodefail = 0.001     # Probability of a single node failing
replication_factor = 3    # Number of copies of each partition (r)
partitions_per_node = 256 # Number of partitions per node
max_nodes = 10000         # Maximum number of nodes to consider

# (n - r)! / n! == r! / (n choose r)
# Intuitively: the fraction of the n! possible permutations of n nodes that
# results in the replicas of one particular partition to be mapped to three
# particular nodes, in a particular order.
	# Parameters:
	prob_nodefail = 0.001 # Probability of a single node failing
	replication_factor = 3 # Number of copies of each partition (r)
	partitions_per_node = 256 # Number of partitions per node
	max_nodes = 10000 # Maximum number of nodes to consider

	# (n - r)! / n! == r! / (n choose r)
	# Intuitively: the fraction of the n! possible permutations of n nodes that
	# results in the replicas of one particular partition to be mapped to three
	# particular nodes, in a particular order.