Abstract
We propose a CDMA-based power controlled medium access protocol for mobile ad hoc networks (MANETs). Unlike previously proposed protocols, ours accounts for the multiple access interference (MAI), thereby addressing the notorious near-far problem that undermines the throughput performance in MANETs. Channel-gain information obtained from overheard RTS and CTS packets over an out-of-band control channel is used to dynamically bound the transmission power of mobile terminals in the vicinity of a receiver. By properly estimating the required transmission power for data packets, the proposed protocol allows for interference-limited simultaneous transmissions to take place in the neighborhood of a receiving terminal. Simulation results indicate that compared to the IEEE 802.11 approach, the proposed protocol achieves a significant increase in network throughput at no additional cost in energy consumption.
| Original language | English (US) |
|---|---|
| Pages | 153-164 |
| Number of pages | 12 |
| DOIs | |
| State | Published - 2003 |
| Event | MOBIHOC 2003: PROCEEDINGS OF The Fourth ACM International Symposium on Mobile Ad Hoc Networking and Computing - Annapolis, MD, United States Duration: Jun 1 2003 → Jun 3 2003 |
Other
| Other | MOBIHOC 2003: PROCEEDINGS OF The Fourth ACM International Symposium on Mobile Ad Hoc Networking and Computing |
|---|---|
| Country/Territory | United States |
| City | Annapolis, MD |
| Period | 6/1/03 → 6/3/03 |
Keywords
- Ad hoc networks
- CDMA
- Code assignment
- Multi-access interference
- Near-far problem
- Power control
ASJC Scopus subject areas
- Computer Networks and Communications