Traffic-adaptive Medium Access Protocol is protocol for wireless sensor networks. Mail me if u wish to download this(gaurav_chauhan@ymail.com)

1. TRAMA
Traffic-adaptive Medium Access Protocol
By Gaurav Chauhan(121060753005)

2. Overview
• Introduction
• Protocol Components
• How It Works
• Comparaison

3. Introduction
• Scheduled Based protocol
– Distributed and on demand
construction
• Single channel
• Nodes needs to be Time
Synchronized
• Time deviden into
– Scheduled Access
– Followed by Random Access

4. Introduction(Contd…)
• Broadcast and Receive the
schedule/two hop neighbourhood
information
– Periodic Operation
• So one can sleep and wake up
peacefully.God bless…

5. Protocol Components
• Protocol Consist three subparts
– Neighbourhood Protocol
– Schedule Exchange Protocol
– Adaptive Election Algorithm

6. Protocol Components(Contd..)
Neighbourhood Protocol
• Executed in Random Fashion,No
channel sensing,Broadcasted
• Transmitted packet contains
– Node`s Identification
– Incremental neighborhood information
• that is only those neighbor identifications
are included that belong to new neighbors
or neighbors that were missing during the
last cycle
– When a node does not transmit,it
listens to pick up its neighbors’ control
packets

7. Protocol Components(Contd..)
Schedule Exchange Protocol
• Transmit its current transmission
schedule
– in which time slots it transmits to
which neighbor
• Picks up its neighbors’ schedules
• Used to actually allocate slots to
transmitters and receivers

8. Protocol Components(Contd..)
Adaptive Election Algorithm
• Sometimes it is possible that there
are some slots which are reserved
by some nodes,but not used.
• allowing nodes to reuse their
neighbors’ unused winning slots
• So the channel is utilized more
effectively.
• Afterall nobody should sit idle,either
work hard or get sleep.

9. Comparasion
• As opposed to S-MAC, the energy savings of
TRAMA depend on the load situation, while in S-
MAC it depends on the duty cycle.
• TDMA based have higher delays but also higher
maximum throughput than contention-based
protocols.
• The TRAMA protocol needs significant
computation and memory in dense sensor
networks since the two-hop neighborhood of a
node tends to be large in this case.TRAMA is a
feasible solution only if the sensor nodes have
sufficient resources.

10. Thank You