Changes between Version 1 and Version 2 of U-Connect
- Timestamp:
- 02/10/2010 07:41:37 PM (7 months ago)
Legend:
- Unmodified
- Added
- Removed
- Modified
-
U-Connect
v1 v2 5 5 = Protocol Overview = 6 6 U-Connect is an unified protocol to address both the symmetric and asymmetric asynchronous neighbor discovery problems. 7 Consider a protocol in which a node picks a prime number '' 'p''' and stays active for '''1''' every '''p''' slots. Any two primes are by definition7 Consider a protocol in which a node picks a prime number ''p'' and stays active for ''1'' every ''p'' slots. Any two primes are by definition 8 8 relatively prime with each other. Hence, two nodes choosing different primes will discover one another. If the nodes choose the same pair of 9 primes, discovery can still be ensured by each node staying active for slightly longer than half the prime period '' 'p'''.9 primes, discovery can still be ensured by each node staying active for slightly longer than half the prime period ''p''. 10 10 11 11 12 The protocol has been implemented on a custom designed light-weight, small and rechargeable mobile sensor-networking hardware platform called '''FireFly-Badge'''. In the implementation, the node listens at the slots that are multiples of '' 'p'''. This operation is fundamentally "Low13 Power Listening "(LPL), where the listen period is14 '' 'p''' slots. The node transmits continuously for ''' {p + 1}/2''' slots for every hyper-cycle. This periodic transmission15 is called "Low Power Transmit"(LPT). Clustering the12 The protocol has been implemented on a custom designed light-weight, small and rechargeable mobile sensor-networking hardware platform called '''FireFly-Badge'''. In the implementation, the node listens at the slots that are multiples of ''p''. This operation is fundamentally ''Low 13 Power Listening'' (LPL), where the listen period is 14 ''p'' slots. The node transmits continuously for ''{p + 1}/2'' slots for every hyper-cycle. This periodic transmission 15 is called ''Low Power Transmit'' (LPT). Clustering the 16 16 transmission slots in this fashion, enables our implementation 17 17 to spread the packet transmission over multiple slots, thereby enabling much lower slot sizes.
