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| Content Provider | ACM Digital Library |
|---|---|
| Author | Obraczka, Katia Rajendran, Venkatesh Garcia-Luna-Aceves, J. J. |
| Abstract | The traffic-adaptive medium access protocol (TRAMA) is introduced for energy-efficient collision-free channel access in wireless sensor networks. TRAMA reduces energy consumption by ensuring that unicast, multicast, and broadcast transmissions have no collisions, and by allowing nodes to switch to a low-power, idle state whenever they are not transmitting or receiving. TRAMA assumes that time is slotted and uses a distributed election scheme based on information about the traffic at each node to determine which node can transmit at a particular time slot. TRAMA avoids the assignment of time slots to nodes with no traffic to send, and also allows nodes to determine when they can become idle and not listen to the channel using traffic information. TRAMA is shown to be fair and correct, in that no idle node is an intended receiver and no receiver suffers collisions. The performance of TRAMA is evaluated through extensive simulations using both synthetic- as well as sensor-network scenarios. The results indicate that TRAMA outperforms contention-based protocols (e.g., CSMA, 802.11 and S-MAC) as well as scheduling-based protocols (e.g., NAMA) with significant energy savings. |
| Starting Page | 181 |
| Ending Page | 192 |
| Page Count | 12 |
| File Format | |
| ISBN | 1581137079 |
| DOI | 10.1145/958491.958513 |
| Language | English |
| Publisher | Association for Computing Machinery (ACM) |
| Publisher Date | 2003-11-05 |
| Publisher Place | New York |
| Access Restriction | Subscribed |
| Subject Keyword | Traffic-adaptive medium access Sensor networks Ad hoc networks Energy-efficient scheduling |
| Content Type | Text |
| Resource Type | Article |
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